Simplified Tools

Tools

820 tools

List of available tools
Blue-Green Deployment Planner Plan a blue-green deployment with traffic waves, health gates, rollback triggers, request exposure, and route command drafts.
CSS Border Radius Generator Create border-radius CSS with circular or elliptical corners, preview fit against a target box, and catch selector or shorthand issues.
CSS Box Shadow Generator Build a CSS box-shadow stack from presets or custom layers, preview light or dark surfaces, and copy CSS with a readable layer ledger.
CSS Flexbox Generator Build flexbox CSS for rows, columns, wrapping, gaps, and optional child sizing, with a live preview, property notes, and scaffold output.
CSS Grid Generator Generate responsive CSS Grid rules with auto-fit, auto-fill, or fixed columns, plus preview, fit projections, and property notes.
Canary Deployment Planner Plan a canary rollout with traffic gates, bake windows, guardrail checks, exposure estimates, rollback notes, and a risk score.
JSON Schema Generator Turn sample JSON into a draft-aware JSON Schema with required-field policy, nullable handling, format hints, property rows, and review notes.
NTP Config Generator Generate NTP configuration for chrony, ntpd, systemd-timesyncd, or Cisco devices, with source ledgers, access rules, and fallback warnings.
OpenTelemetry Collector Config Generator Build Collector YAML for traces, metrics, or logs with OTLP listeners, exporters, memory guards, batching, and rollout audit checks.
README Generator Draft a README from project facts, setup commands, usage notes, and license choices, then review section gaps and repository checklist items.
Route Table Longest Match Checker Check which IPv4 or IPv6 route wins for a destination, with longest-prefix ranking, tie-break audit, and host-bit cleanup warnings.
Secrets Rotation Planner Plan a credential rotation with stages, consumer checks, risk scoring, rollback gates, and an exposure timeline for old and new secrets.
Sitemap XML Generator Generate sitemap XML for same-host URLs, with lastmod policies, optional crawl hints, dedupe review, and protocol limit checks.
Test Data Generator Generate repeatable synthetic test data from field recipes, seeds, row limits, blank-rate settings, and CSV, JSON, NDJSON, or SQL output.
Web App Manifest Generator Build a web app manifest JSON draft with launch scope checks, icon entries, install markup, asset review, and deployment-ready warnings.
.env File Generator Turn pasted key-value rows into .env and .env.example files with quote checks, duplicate-key review, and masked secret previews.
.gitignore Generator Draft a team-safe .gitignore from project, stack, OS, editor, and secret policies, with duplicate cleanup and broad-pattern warnings.
.gitignore Pattern Coverage Checker Check whether .gitignore rules cover generated or sensitive paths, including negations, tracked files, and coverage targets before commit.
.htaccess Generator Build a .htaccess draft from Apache section presets, reorder rule blocks, and review warnings, rule counts, and shareable state before upload.
16-Factor Personality Profile Assessment Build a 163-item IPIP-style 16-factor personality profile with factor means, high and low pole leans, spread notes, and answer review.
7 Wonders Score Calculator Score a finished 7 Wonders game for 2-7 cities, convert coins, apply the treasury tie-break, and review rankings, warnings, and charts.
7-Minute Workout Timer Run a guided 7-minute workout timer with classic or low-impact circuits, local cues, plan metrics, exercise ledgers, and a load chart.
ACL Wildcard Mask Calculator Convert IPv4 CIDR, subnet masks, wildcard masks, host, and any entries into ACE lines with match-size, broad-rule, and overlap audits.
ACME DNS Challenge Readiness Check Check whether an ACME DNS-01 owner is ready by comparing TXT, CNAME, NS delegation, resolver views, tokens, and practical retry hints.
ACS Mini Attachment Style Snapshot (Proxy) Reflect on one adult relationship pattern with a 16-item attachment-style proxy, showing four style signals, cue rows, and review notes.
AMRAP Workout Timer Plan a time-capped AMRAP workout with target rounds, parsed movement loops, pace warnings, live score logging, charts, and exports.
API Error Budget Analyzer Analyze API error-budget burn from HTTP status counts or logs with SLO projections, status mix checks, and burn-rate guardrails.
API Key Generator Generate API keys with prefixes, environment labels, public IDs, secret entropy checks, checksum segments, and SHA-256 storage hashes.
API Pagination Window Calculator Plan API pagination windows from item counts, page caps, rate limits, latency, and workers, with shard timing and page-size tradeoff charts.
APR Calculator Calculate APR from loan amount, upfront charges, payment frequency, and final-payment rules, with cash-flow notes and amortization checks.
Acceptance Criteria Generator Turn a backlog item into clear acceptance criteria, with Given-When-Then drafts, scenario ledgers, edge-case rows, and review checks.
Ad Network Detector Scan a public page for ad-network signals, ads.txt seller matches, redirects, TLS fetch issues, confidence scores, and action priorities.
Adult ADHD Self-Report Scale (ASRS v1.1) 6-Question Screener Screen adult ADHD symptoms with six ASRS v1.1 questions, comparing classic shaded items, the 24-point update, cutoffs, and follow-up cues.
Age Calculator Calculate calendar age from birth and as-of dates, then review elapsed totals, next birthdays, leap-day rules, and milestone charts.
Alcohol Screener Comparator Compare AUDIT-C, AUDIT-10, and CAGE routes by screening goal, time, setting, and cutoff lens before choosing a first alcohol screener.
Alcohol Use Disorders Identification Test (AUDIT-10) Score a 10-item AUDIT alcohol screen with WHO zones, domain maps, priority signals, lane promotion cues, and follow-up context.
Alcohol Use Disorders Identification Test (AUDIT-C) Score the three AUDIT-C alcohol questions, compare 3+/4+, VA 5+, and 8-12 reference lines, and see which item drives the result.
Alert Noise Rate Calculator Measure alert noise from classified CSV rows, compare it with a target, and find noisy routes, repeat groups, and unclassified outcomes.
Alphabet Matching Sheet Generator Create alphabet matching worksheets with letter sets, cue words, seeded target order, distractors, answer keys, and print-ready sheets.
Alternative DCV Checker Check alternative DCV readiness for DNS, CNAME, HTTP, and HTTPS proofs using CA tokens, CSR hashes, resolver results, and fetch evidence.
Anger & Irritability Proxy Check Check anger and irritability over the past 2 weeks with an 8-item proxy, a 0-32 load band, domain drivers, high items, and trend notes.
Ansible Inventory Generator Build a static Ansible INI inventory from host rows, group variables, and parent groups, with validation warnings and a host ledger.
Apache Virtual Host Generator Generate an Apache virtual host draft for static, PHP-FPM, or proxy sites, with TLS choices, directive review, and activation checks.
Application Log Pattern Analyzer Analyze application logs locally, collapse repeated message patterns, and spot noisy failures with severity counts and time-window charts.
Application Programming Interface (API) Testing Tool Test an HTTP API from your browser with method, headers, auth, body modes, cURL import, CORS clues, response traces, and saved presets.
Aquarium Screensaver Simulator Tune a browser aquarium screensaver with fish, bubbles, currents, lighting, fullscreen preview, and tank metrics for calmer display loops.
Arithmetic Practice Generator Generate arithmetic practice sheets from operations, number ranges, and a replay seed, with printable student pages, answer keys, and setup warnings.
AsciiMath Editor Edit AsciiMath with live rendering, conversion checks, function metrics, and reusable LaTeX, MathML, image, or PDF outputs.
Attendance Rate Calculator Calculate attendance rate from present days or absence details, then compare targets, future absence cushion, and recovery scenarios.
Attendance Sheet Generator Build printable attendance sheets from roster text or CSV, date ranges, and mark columns, with duplicate checks and roster review outputs.
Audit Log Anomalies Analyzer Analyze audit logs locally for failure bursts, privilege changes, source shifts, and after-hours activity with risk-scored evidence tables.
Autonomous System Number (ASN) Information Lookup Look up an ASN or public IP to identify the routed network, announced prefixes, neighbour ASNs, RDAP contacts, and peering context.
BFI-2-S Aligned Proxy Assessment Score a 30-item BFI-2-S-style proxy, compare five domain means, and review two-item facet clues with clear non-normed limits.
BFI-44 Style Big Five Proxy Assessment Build a 44-item Big Five proxy profile, compare trait means and cluster support gaps, and check non-normed limits before retaking.
BGP AS Path Policy Checker Check pasted BGP AS paths against origin, first-hop, blocked-ASN, regex, length, and prepend rules with route verdicts and finding charts.
BGP Prefix List Generator Generate BGP prefix-list configuration from CIDR rows for Cisco, Arista, FRR, SONiC, or Junos, with shadowing and terminal-rule checks.
BGP Route Scale Calculator Estimate BGP route memory and churn pressure from prefixes, peers, retained paths, route bytes, budgets, and guardrails for scaling decisions.
BIMI Validation Report Validate BIMI for a domain and selector with DNS, DMARC, SVG logo, and certificate evidence checks, then review readiness notes.
BIS/BAS Behavioral Style Proxy Assessment Map a 20-prompt BIS/BAS-style motivation profile, compare brake and approach domains, and inspect keyed scores without official item text.
BMI-for-Age Percentile Calculator Check a child's BMI-for-age percentile from age, sex, BMI or height and weight, with WHO/CDC curves, z-score, P95 gates, and charted lanes.
BMR & TDEE Calculator Estimate daily calories from BMR, activity, TEF, goal pace, and macros, with formula drift, BMI context, and weekly change checks.
BRI-12 Resilience Proxy Assessment Run a disclosed 12-item resilience proxy, compare Reset, Adapt, Reach, and Steady lanes, and add prior-score context for rechecks.
Backup Capacity Calculator Estimate backup capacity from dataset size, change rate, retention, copy tiers, growth, and reserves with usable and raw storage targets.
Backup Restore Time Calculator Estimate backup restore time from data size, compression, throughput, streams, fixed phases, and RTO target with phase and rate checks.
Backup Rotation Planner Plan backup rotation storage from incremental and full sizes, GFS-style copy counts, growth, compression, dedupe, and horizon checks.
Bandwidth Delay Product Calculator Size TCP receive windows from bandwidth, RTT, utilization, streams, MSS, and overhead, then compare current window limits with tuning guidance.
Barbell Plate Load Calculator Find the per-side plates for a target barbell load, accounting for bar and collars, limited plate counts, nearby loads, and warm-up rows.
Barcode Generator Generate Code 128, EAN-13, UPC-A, or Code 39 barcodes with check-digit handling, quiet-zone warnings, and label readiness checks.
Base64 Encoder and Decoder Encode or decode Base64 text and files, switch alphabets, repair padding, inspect bytes, and build Data URLs without uploading payloads.
Beck Anxiety Inventory (BAI) Assessment Score 21 BAI anxiety symptoms for the past week, review severity bands, the 16+ cue, symptom mix, high items, and prior-score change.
Beck Depression Inventory-II (BDI-II) Review a BDI-II depression-symptom score from 21 two-week answers, with severity bands, Item 9 safety context, and prior-score change notes.
Beck Hopelessness Scale (BHS) Assessment Check 20 past-week BHS true-or-false answers, see the 0-20 hopelessness band, and review score-raising items for qualified follow-up.
Beginning Sounds Sheet Generator Build beginning-sounds worksheets from word lists, with inferred sounds, answer keys, review notes, and a sound mix chart for printouts.
Behavior Reward Chart Generator Build a printable positive behavior reward chart from goals, age guidance, marking chances, and rewards, with coaching checks and sticker-space maps.
Bicycle Tire Pressure Calculator Calculate front and rear bicycle tire pressure from system weight, measured tire width, rim width, surface, setup, load split, and temperature.
Big Five 10-Item Proxy Assessment Build a quick 10-item Big Five proxy profile with two-item trait means, pair-gap cautions, local bands, and answer-review checks.
Big Five Aspect Scales (BFAS) Assessment Build a BFAS-style personality profile from 100 answers, with ten aspect means, five domain means, pair gaps, and answer-review checks.
Big Five Assessment Score a 50-item IPIP-style Big Five profile, compare factor means and item spread, and review non-normed signals for retakes.
Big Five Assessment Comparator Compare Big Five questionnaires by item budget, detail depth, source basis, and goal, then choose a domain, facet, or aspect assessment.
Big Five Inventory-2 Style Proxy Assessment Review a 60-item BFI-2-style proxy profile with five domain means, 15 facet means, spread flags, and answer-review checks for surprises.
Bill Split Calculator Split a shared bill from subtotal, tax, tip basis, service charge, discounts, and people count, with exact-cent or cash-rounding notes.
Billable Hours Calculator Turn duration or clock rows into billable hours, invoice subtotals, write-down checks, realization rates, and client rollups with rounding.
Billing Document Generator Draft an invoice or purchase order from line items and tax, then review totals, ledger rows, copy-ready text, and JSON before sharing.
Binary Decimal Hex Converter Convert one integer across binary, decimal, hex, octal, and Base36, with signed width, endian, byte stream, bit map, and wrap checks.
Bingo Card Generator Build printable bingo cards from your own prompt list with seeded shuffles, coverage checks, caller deck controls, and PDF or image exports.
Birthday Calculator Calculate exact age, next birthday countdowns, leap-day handling, milestone birthdays, special date markers, and reminder windows from two dates.
Blacklist Checker (DNSBL/RBL) Check a mail host or IP against DNSBL/RBL lists, separate listings from resolver limits, and capture TXT evidence for follow-up.
Body Composition Calculator Estimate body fat from tape measurements, compare Navy, RFM, and BMI-age methods, and project lean mass, waist, and target-weight runway.
Body Mass Index (BMI) Calculator Calculate adult BMI from height and weight, compare WHO, Asia-Pacific, and NIH/CDC bands, and add waist and target-weight checks.
Body Metrics Calculator Calculate BMI, waist ratios, body-fat estimates, lean mass, BSA, and reference weights with risk flags and method-spread checks.
Body Recomposition Calculator Plan body recomposition from weight, body-fat, lean-mass, runway, calorie, and protein inputs with measurement-spread checks and pace flags.
Body Surface Area Calculator Calculate body surface area from height and weight, compare formulas, and review dose caps, weight bases, reference lanes, and drift.
Bodyweight Workout Guide Build a no-equipment workout from your goal, level, time, and movement limits, with swaps, readiness checks, and exportable charts.
Bonus Pool Allocation Calculator Allocate a bonus pool across eligible participants with ratings, proration, floors, caps, rounding, and review flags for balance checks.
Bonus Tax Calculator Estimate a 2026 U.S. bonus paycheck after deferrals, federal supplemental withholding, FICA, state/local rates, and warning checks.
Boxing Round Timer Run combat-sport round timers with setup, rest, warning, halfway, sound or vibration cues, and logs for boxing, MMA, or bag work.
Boxing Scoreboard Tracker Record a boxing scorecard with 10-point round buttons, knockdown counts, point deductions, warning notes, a score chart, and event ledger.
Braille Alphabet Quiz Practice Braille letters and numbers with seeded multiple-choice drills, score percentages, missed-answer review, and an accuracy chart.
Break-Even Calculator Calculate break-even units from fixed cost, unit price, and variable cost, then test target profit, sales runway, and margin safety.
Breathing Pacer Pace a breathing session with a live phase ring, custom inhale and exhale timing, comfort checks, optional cues, charts, and session exports.
Brief Resilience Scale (BRS) Assessment Score the six-item BRS bounce-back measure, review the mean-score band, and inspect reverse-scored items and weak recovery supports.
Brief Resilient Coping Scale (BRCS) Assessment Score the four-item BRCS coping scale, see the 4-20 resilient-coping band, and compare strongest and lowest supports before sharing.
Brief Rumination Response Scale Review a 10-item rumination pattern, compare brooding and reflection, and turn the most-endorsed loops into a non-diagnostic follow-up note.
Brief Self-Control Scale (BSCS) Assessment Score the 13-item BSCS from 1-to-5 answers, reverse-score difficulty items, and review total, mean, and reflection lanes for follow-up.
Bug Report Generator Turn bug details into ticket-ready Markdown with repro steps, severity, evidence notes, triage fields, and a readiness checklist.
Build Artifact Storage Calculator Estimate retained build artifact storage from size, build rate, refs, retention, compression, caches, reserves, and quota risk.
Business Days Calculator Count business days or shift deadlines with custom weekend patterns, holiday lists, endpoint rules, and ledgers that show counted and skipped dates.
CAA Validation Report Validate CAA policy for a hostname, follow CNAME and parent lookups, and review exact or wildcard issuance findings with DNS evidence.
CBT-I Sleep Diary Tracker Log CBT-I sleep diary nights, calculate sleep efficiency and wake drift, and review trends, risk bands, and plan cues from recent entries.
CBT-I Sleep Window Calculator Plan a CBT-I sleep window from baseline sleep, wake time, and weekly efficiency, with safety floors and hold, expand, or audit cues.
CD-RISC-10 Resilience Proxy Assessment Review a CD-RISC-10-style resilience proxy, sum 10 zero-to-four prompts, and compare support domains, bands, and prior-run change.
CI Failure Log Analyzer Triage a failed CI log in your browser, keep line-numbered clues, mask secret-like snippets, and group failures by stage and next action.
CI Runner Capacity Calculator Estimate CI runner slots from job volume, runtimes, utilization, retries, and peak bursts, with queue-wait checks and capacity curves.
CIDR Allowlist Risk Checker Check CIDR allowlists for broad ranges, risky ports, stale exceptions, owner gaps, and overlaps with scored triage and evidence tables.
CODEOWNERS Coverage Analyzer Check CODEOWNERS coverage for changed paths, find missing, ownerless, and catch-all matches, and queue review fixes before merge.
CORS Policy Risk Checker Check CORS response headers against origin, credential, cache, header exposure, and private-network rules with scored risk evidence.
CPS Test Measure clicks per second with timed target runs, bounce filtering, zone accuracy, pace charts, consistency cues, and local best history.
CSP Header Generator Draft a Content Security Policy header with nonce, hash, allowlist, reporting, directive ledger, score, and rollout warnings before enforcement.
CSP Header Policy Checker Check a Content-Security-Policy header for unsafe script allowances, missing baseline directives, reporting gaps, and rollout-ready fixes.
CSS Gradient Generator Create CSS gradients with linear, radial, or conic geometry, editable color stops, interpolation choices, preview, and syntax warnings.
CSS Minifier Minify CSS in your browser, compare saved bytes, and catch parser, browser-target, URL, comment, or source-map warnings before downloading.
CVC Word Practice Sheet Generator Build a printable CVC word practice sheet from a short-vowel list, with family filters, invalid-word review, sound maps, and answer keys.
Cache TTL Hit Rate Calculator Model cache hit rate from request volume, key reuse, TTL behavior, purge loss, and latency, then compare target gaps and freshness risk.
Caffeine Content Calculator Estimate caffeine per serving and per day, compare adult, pregnancy, or teen guides, and review mg/kg, warnings, and clearance timing.
Caffeine Cut-off Calculator Find the latest caffeine cutoff before bedtime from dose, half-life, and residual target, then test drink times and safe-dose limits.
Calendar ICS Generator Create an ICS calendar file from event timing, timezone, reminder, and location details with escaped fields and compatibility checks.
Calories Burned Calculator Estimate calories burned from weight, activity MET, duration, and model choice, with active calories, target time, MET bands, and burn charts.
Capacitor Calculator Estimate parallel-plate capacitance from geometry, dielectric, and voltage, with charge, energy, electric-field, gap sensitivity, and margin checks.
Capacity Upgrade Brief Report Build a capacity upgrade brief from utilization, growth, lead time, thresholds, and options, with runway charts and ranking notes.
Capital Gains Tax Calculator Estimate U.S. capital gains tax from sale proceeds, adjusted basis, losses, and filing status, with federal layers, NIIT, charts, and review warnings.
Car Loan Calculator Estimate a car loan payment from price, APR, term, credits, taxes, fees, and extra payments, with amortization schedules and cost warnings.
Car Tire Pressure Calculator Calculate cold tire pressure targets from placard or vehicle class, load, tire width, axle share, and temperature, with add-or-bleed guidance.
Carb Loading Calculator Plan carb loading by body weight, event length, g/kg target, taper, and gut tolerance, with meal-block targets and tolerance flags.
Carpet Calculator Estimate carpet order quantity from room size, roll width, waste, pattern repeat, and costs, with seam, offcut, and layout checks.
Case Converter Convert text into case formats for headings, identifiers, filenames, and slugs with line-by-line options, acronym handling, and exportable variants.
Center for Epidemiologic Studies Depression (CES-D-20) Screen past-week depressive symptoms with CES-D-20 scoring, 16/20/24 cutoff reads, clusters, high-intensity items, and prior-score change.
Ceph Storage Capacity Calculator Estimate Ceph usable capacity from nodes, protection profile, nearfull targets, and failure-domain reserve, with PG and spread checks.
Certificate Inventory Expiry Checker Check certificate inventory rows for urgent renewals, owner gaps, manual renewal risk, and public validity caps with queue-ready evidence.
Certificate Renewal Window Calculator Plan certificate renewal load from validity, lead time, spread, daily capacity, retry reserve, and safety buffer before expiry.
Certificate Signing Request (CSR) Decoder Decode a CSR locally to inspect subject and SAN coverage, key strength, signatures, fingerprints, JWK output, and readiness warnings.
Certificate Signing Request (CSR) Generator Generate a CSR and RSA private key in your browser, add SAN and subject fields, and export PEM plus OpenSSL guidance without sending keys.
Certificate Transparency Checker Check a PEM or DER certificate fingerprint in public CT data, then compare issuer rows, hostname coverage, revocation clues, and reporting hints.
Change Risk Assessment Reporter Assess change risk from impact, likelihood, rollback, validation, monitoring, and communications gates, with residual-risk notes.
Changelog Generator Draft a changelog from release notes or commit subjects, map entries to Keep a Changelog sections, and review SemVer signals before copying.
Checklist and Log Generator Turn plain item lines into a checklist, to-do list, or reading log with a clean draft, row ledgers, review checks, and reusable exports for handoff.
Chess Clock Timer Run a two-player chess clock with bullet, blitz, rapid, or custom time controls, increment and delay modes, move logs, and balance charts.
Circle Time Routine Planner Plan a classroom circle time routine from age, theme, timing, and materials with age-fit warnings, block sequencing, checks, and a rhythm map.
Circuit Training Timer Build a named circuit training timer with station timing, round breaks, live cues, coaching checks, and station flow maps for class or solo sessions.
Cisco ACL Generator Build Cisco IPv4 ACL commands from traffic-flow rows, with platform syntax, sequence planning, object-group checks, safety review, and match charts.
Cisco Interface Config Generator Build Cisco interface stanzas for routed, access, or trunk ports, with VLAN validation, command review, and copy-ready config output.
Citation Generator Create citation drafts for web, book, article, legal, dataset, media, and AI sources with style-specific entries and review notes.
Classroom Resource Pack Generator Build classroom lesson, study, exit ticket, lab, or book-report packs from grade, topic, objectives, timing, materials, and handoff notes.
Classroom Supply Budget Calculator Plan classroom supply purchases from class size, item costs, stock, pack sizes, tax, discounts, and budget cap with category and priority views.
Click Counter Count repeated events with a large Add target, chosen step size, subtract and reset corrections, session peak tracking, and activity export.
Cloud Tag Coverage Analyzer Audit cloud tag coverage from inventory rows, separate missing keys from invalid values, and build a cleanup queue against required tags.
Cloud-init Network Config Generator Build cloud-init version 2 network YAML for static VM interfaces with CIDR addresses, routes, DNS, MAC matching, and validation review.
Cloze Worksheet Generator Turn a reading passage into a cloze worksheet with nth-word, vocabulary, frequent-term, or bracket blanks plus word banks and teacher checks.
Coffee Bag Yield Calculator Estimate coffee bag servings from weight, dose or brew water, waste, price, and daily use, with cost per serving and reorder timing.
Coffee Brew Planner Plan a coffee brew from drink size, ratio, bloom, and retention, with coffee dose, water timeline, strength checks, and dial-in notes.
Coffee Brew Suite Plan coffee recipes across pour-over, immersion, espresso, moka, and cold brew with dose math, schedules, strength bands, and dial-in notes.
Coffee Cupping Score Calculator Score a coffee cupping sample from attribute ratings, affected cups, taints, and faults, with banding, weak spots, and profile charts.
Coffee Drink Calorie Calculator Estimate coffee drink calories, sugar, macros, and caffeine from milk, syrup, cream, and toppings, then compare simple recipe changes.
Coffee Extraction Yield Calculator Calculate coffee extraction yield from dose, beverage mass, and TDS or Brix, then compare strength, target bands, and taste cues.
Coffee Freshness Window Checker Check coffee freshness from roast date, brew method, grind state, storage, and opening habits with window dates, warnings, and a timeline.
Coffee Strength Calculator Analyze coffee strength from dose, beverage mass, and TDS or Brix, then map extraction, ratio, and next-brew targets for common brew styles.
Coffee Water Recipe Calculator Build a coffee water recipe from measured GH, KH, TDS, and batch size, with dilution limits, mineral gram targets, audit cautions, and target maps.
Coffee to Water Ratio Calculator Plan coffee-to-water ratios from a known dose or target yield, with method windows, absorption, bloom water, and batch scaling for repeat brews.
Cognitive Reflection Test (CRT-3) Assessment Check three classic CRT reasoning traps, separate correct answers from intuitive lures and other misses, and review the reflection index.
Cognitive Reflection Test (CRT-7) Assessment Check seven CRT reasoning traps, compare classic and extension items, and review score lanes, lure avoidance, section splits, and rethink notes.
Coin Flipper Flip a fair, biased, or seeded coin, then review heads/tails counts, streaks, batch runs, and a session ledger for probability demos.
Cold Brew Dilution Calculator Dilute cold brew concentrate into a ready batch, with water or milk splits, ice-melt allowance, service-loss yield, and packaging ladders.
College GPA Calculator Calculate college GPA from current courses and prior totals, with pass/fail and repeat-policy checks, target buffers, row audits, and grade-lift charts.
Color Palette Generator Build a color palette from one HEX color, compare harmony modes, check text contrast, and copy CSS tokens, swatches, SVG, or JSON.
Comma-Separated Values (CSV) Converter Convert CSV-like rows into previews, column profiles, and reusable exports with delimiter, quote, header, type, XML, and SQL controls.
Compost Carbon-to-Nitrogen (C:N) Ratio Calculator Balance compost carbon-to-nitrogen from browns, greens, manure, weights, and moisture targets, with mix status, repair amounts, and mass charts.
Compound Interest Calculator Project compound interest with deposits, compounding frequency, taxes, fees, inflation, target timing, schedules, and sensitivity checks.
Concrete Calculator Estimate concrete for slabs, footings, piers, or known volumes with waste allowance, ready-mix rounding, bag counts, and cost notes.
Config Drift Checker Compare intended and observed config lines, find changed, missing, extra, ignored, and priority drift, and build an audit-ready remediation view.
Container Image Pull Time Calculator Estimate container image pull time from image size, cached nodes, changed layers, bandwidth, pull lanes, unpack speed, and retry reserve.
Container Security Scan Analyzer Review container scan output, normalize severities and fixes, test critical/high gate limits, and rank packages for remediation.
Conventional Commit Messages Checker Check Conventional Commit headers or full messages for type, scope, breaking-change markers, release impact, and rule-specific fixes.
Copenhagen Burnout Inventory (CBI) Assessment Score the 19-item CBI into personal, work, and client-related burnout means, then compare 0 to 100 domain scores with PUMA anchors.
Corrected Age (Preterm) Calculator Calculate corrected age for a preterm baby from birth date, due date or gestational age, with milestone timing and age-use notes.
Cost Per Hire Calculator Calculate cost per hire from recruiting costs and hires, then compare spend mix, target variance, category shares, and compensation ratio.
Count and Color Sheet Generator Create count-and-color worksheets for numbers 0-20 with object themes, tracing or circling prompts, answer keys, color plans, and count-load charts.
Countdown Timer Count down to a target date with timezone handling, buffer time, reminder milestones, a progress gauge, and local target checks.
Country Flags Quiz Practice country flags by world or regional pools with seeded quiz runs, score percentages, missed-answer review, and an accuracy chart.
Country Take-Home Pay Comparator Compare country salary offers after taxes, employee contributions, FX, and cost indexes with source notes, charts, and exportable ledgers.
Credit Card Calculator Plan a credit card payoff from balance, APR, payments, charges, and target date, with interest totals, warnings, schedules, and charts.
Credit Card Number Generator Generate sandbox-only payment card numbers with network-style prefixes, Luhn check digits, optional CVV or expiry fields, masking, and seeded batches.
Credit Card Number Validator Check payment-card test numbers locally with Luhn, issuer, length, and batch review, then inspect failing rows, rule traces, and charts.
Cricket Scoreboard Tracker Record a cricket innings by legal balls, extras, wickets, and chase target, then read run rate, required rate, projection, and scoring worm.
Cron Expression Parser Parse a Unix cron expression, expand each field, preview upcoming runs, and flag macro, timezone, day-rule, or dialect issues.
Crontab Generator Build user or system crontab lines from presets, pasted entries, or manual fields, with validation, warnings, install notes, and exports.
Crossword Puzzle Generator Build printable custom crosswords from answer-clue lists, tune grid fit and symmetry, review quality metrics, and export puzzles or answer keys.
Current Time Check the current browser time as local or UTC, freeze one snapshot, and copy Unix, ISO, UTC offset, and day-boundary evidence.
Cut Down, Annoyed, Guilty, Eye-opener (CAGE) Assessment Screen four CAGE alcohol cues, compare 1+, 2+, and 3+ Yes thresholds, and flag Eye-opener patterns that need fuller follow-up.
DANE TLSA Validation Report Validate DANE TLSA records for mail or TLS services, checking owner routes, DNSSEC AD evidence, digest matches, and readiness scores.
DARVO Pattern Reflection Review one confrontation for DARVO-style denial, attacks, and role reversal with 18 similarity ratings, tactic means, and cue-level notes.
DB Replica Lag Catch-up Calculator Estimate database replica catch-up time from backlog, write rate, apply throughput, target windows, scenario changes, and retention risk.
DERS-18 Emotion Regulation Proxy Check Check emotion-regulation strain with an 18-item DERS-style proxy, six domain scores, reverse-keyed Awareness items, and support cues.
DHCP Scope Calculator Size a DHCP scope from subnet, pool ranges, exclusions, reservations, and growth demand, with target headroom checks and config snippets.
DKIM DNS Record Generator Generate a DKIM DNS TXT record from a selector, domain, and public key, with key checks, split strings, and publish-ready fields.
DKIM Validation Report Check a DKIM selector for a signing domain, review TXT tags, key size, testing flags, and resolver evidence in a readable report.
DMARC DNS Record Generator Build a DMARC DNS TXT record for a domain, stage policy rollout, normalize report URIs, and flag external-report authorization.
DMARC Validation Report Check a domain's DMARC record, review policy tags, report destinations, alignment, rollout status, and control scores from DNS.
DNS Cache Capacity Calculator Size DNS cache memory from QPS, hit rate, TTL, RRset footprint, DNSSEC overhead, and reserve headroom with latency and upstream-load curves.
DNS Configuration Report Audit a domain's DNS configuration with record inventory, posture notes, TTL tiers, and resolver timing charts from public DNS.
DNS Delegation Trace Analyzer Trace a hostname through DNS delegation, CNAME chasing, resolver comparison, DNSSEC clues, and negative-cache timing from public DoH results.
DNS Denial Proof Report Build a DNS denial proof for NXDOMAIN or NODATA with resolver evidence, NSEC/NSEC3 checks, CD-bypass comparison, and retry timing.
DNS Glue & Delegation Check Check DNS glue and delegation for a domain, flag in-domain or sibling nameserver gaps, compare resolver views, and build a repair queue.
DNS Propagation Checker Check DNS propagation across public resolvers, compare expected answers or leading values, and review TTL, DNSSEC, ECS, and latency clues.
DNS Record Enumerator Enumerate public DNS records for a domain or IP, compare resolver evidence, and flag mail-auth, DNSSEC, PTR, CAA, and service-record gaps.
DNS Record Lookup Look up DNS records for a domain, host, or IP through Google or Cloudflare DoH, with TTL details, DNSSEC flags, charts, and raw responses.
DNS TTL Change Window Calculator Plan a DNS TTL cutover from current, lowered, longer-cache, and negative-cache TTLs, with wait timing, guardrails, and a window chart.
DNS Wildcard Behavior Check Check DNS wildcard behavior with random leaf, deep, and boundary probes, then compare resolver splits, hit rates, and closest-encloser clues.
DNS Zone File Generator Generate a DNS zone file from SOA, NS, MX, and resource rows, with TTL policy, DNSSEC checks, lint-ready text, and record ledger.
DNSSEC Validator Validate a domain's DNSSEC evidence with DNSKEY, DS, RRSIG, denial-record checks, resolver AD comparison, and pass/fail exports.
DOCX Converter Convert a DOCX in your browser to HTML, Markdown, text, RTF, XML, CSV, EPUB, or JSON with package checks, structure charts, and image controls.
DORA Metrics Analyzer Analyze deployment CSV rows into DORA frequency, lead time, failure, recovery, and rework metrics with targets and data-quality warnings.
DR Runbook Report Create a disaster recovery runbook from RTO, RPO, owners, dependencies, failover steps, validation checks, and readiness gates.
Data Transfer Rate Converter Convert transfer rates across bit and byte units, model overhead, and check payload ETAs, window fit, link tiers, and SI or IEC labels.
Database Connection Pool Calculator Size database connection pools across instances and workers, compare usable database slots, headroom, surge risk, and per-holder caps.
Database Index Rollout Planner Plan a database index rollout with engine-specific SQL, lock and lag guardrails, build estimates, risk scoring, and rollback checks.
Database Migration Risk Checker Check SQL migration risk before release with scoring for destructive DDL, lock-heavy changes, large tables, validation, and backfill steps.
Date & Time Difference Calculator Calculate elapsed time between dates or timestamps with timezone choices, workday counts, business-hour overlap, checkpoints, and warnings.
Debt Repayment Calculator Plan a debt payoff path from balances, APRs, minimums, and extra payments, comparing strategies, payoff dates, and interest savings.
Decibel Calculator Calculate decibel levels or solve measured values using SPL, dBm, dBW, dBV, dBu, or custom ratios, with ratio tables and charts.
Dependency License Flags Checker Check dependency licenses against allowed, review, and denied policies, with SPDX expression handling, scope filtering, risk scoring, and review queues.
Dependency Update Risk Analyzer Score dependency update CSV rows by version change, runtime scope, security signal, test confidence, freshness, and owner-review threshold.
Depression Anxiety Stress Scales (DASS-21) Assessment Score DASS-21 past-week responses into doubled depression, anxiety, and stress bands, with item-level cues and safety-minded follow-up notes.
Depression Anxiety Stress Scales (DASS-42) Assessment Score the full DASS-42 past-week questionnaire into depression, anxiety, and stress bands, then review raw total context and endorsed items.
Depth of Field Calculator Estimate near and far focus limits, hyperfocal distance, framing coverage, background blur, motion tolerance, and aperture tradeoffs from camera format, focal length, aperture, and subject distance.
Dew Point Calculator Calculate dew point from temperature and relative humidity, compare a surface for condensation risk, and review moisture metrics with a curve.
Dice Roller Roll tabletop dice notation with advantage, rerolls, exploding dice, seeded runs, success checks, probability charts, and a session log.
Diceware Passphrase Generator Generate a Diceware passphrase from browser rolls or manual dice keys, then check entropy, roll-sheet evidence, and policy fit before copying.
Discount Calculator Estimate the real checkout total after markdowns, coupons, shipping, tax, and quantity, with target-gap warnings and offer comparisons.
DoH Query Packet Crafter Build a DNS-over-HTTPS wire packet, tune EDNS and DNSSEC flags, compare GET or POST replay data, and decode live resolver replies.
Docker Compose Generator Generate Compose YAML for one service with image or build inputs, .env references, healthchecks, networks, volumes, and review findings.
Docker Compose Healthchecks Checker Check Docker Compose healthchecks against service roles and depends_on gates, then find missing probes, weak timing, and restart-policy gaps.
Dockerfile Generator Generate a Dockerfile and .dockerignore for Node.js, Python, Go, or Java services with cache mounts, non-root runtime, and review ledgers.
Dockerfile Security Basics Checker Check a Dockerfile for risky defaults before build time, with weighted findings for base images, users, secrets, package hygiene, and runtime surface.
Duplicate Line Remover Clean repeated lines from pasted text or a local TXT/CSV list, choose case and spacing rules, and review kept rows with metrics and a duplicate ledger.
Dysfunctional Beliefs and Attitudes About Sleep (DBAS-16) Assessment Review DBAS-16 sleep-belief ratings, compare the 0 to 10 mean with the 3.8 reference, and shortlist the beliefs to revisit first.
ECMP Path Capacity Calculator Check ECMP usable capacity from active paths, per-path rate, demand, hash spread, and large-flow risk, with headroom and failure runway.
ECR-R-style Attachment Profile Proxy Map attachment anxiety and avoidance with a 36-item ECR-R-style proxy, midpoint quadrant view, item cues, and browser-side scoring.
EDNS Client Subnet (ECS) Tester Test EDNS Client Subnet behavior for a DNS name by comparing hinted and control lookups, echoed scope, TTL drift, and resolver evidence.
EDNS Options Inspector Inspect EDNS behavior for a domain through public DoH resolvers, comparing OPT records, DNSSEC flags, ECS, padding, packet sections, and replay commands.
EMOM Workout Timer Plan an EMOM workout with minute-by-minute targets, rest-buffer warnings, live timer controls, coach checks, and a minute-flow chart.
ENV Converter Convert .env content into YAML, JSON, runtime env, INI, and properties outputs with line tracing, expansion checks, and secret review.
EPQ-R Style PEN Personality Proxy Assessment Profile PEN plus L traits with a 28-item EPQ-R-style yes/no proxy, keyed scale reads, response-style cautions, and a radar chart.
EPW-Style Daytime Sleepiness Proxy Check daytime sleepiness across eight EPW-style situations, then review the 0-24 score, reference zone, safety cue, and context map.
EQ-5D-5L Health Status Survey Record today's EQ-5D-5L state and EQ VAS, compare US 2019 and England 2018 utilities, and see which dimensions drive health burden.
EV Range Calculator Estimate EV range from battery capacity, SOC reserve, consumption units, route profile, trip margin, and sensitivity chart checks.
Edinburgh Postnatal Depression Scale (EPDS) Assessment Score EPDS responses for the last 7 days, see follow-up ranges, keep Question 10 safety cues visible, and compare prior totals.
Effective Interest Rate Calculator Convert nominal interest quotes to effective annual rate, compare compounding bases, and check real yield, spreads, and holding-period return.
Effective Tax Rate Calculator Estimate effective tax rates from gross, taxable, or manual totals, then compare bracket tax, payroll components, and side-income impact.
Electric Vehicle (EV) Charging Time Calculator Estimate EV charging time from battery size, SOC window, charger caps, taper, derates, added range, cost, and departure timing.
Email Header Analyzer Analyze raw email headers for relay delays, SPF, DKIM, DMARC alignment, ARC context, sender mismatch, and browser-side spoof-risk clues.
Email Signature Generator Create a compact email signature with HTML, plain text, preview, contact-link checks, width limits, color validation, and copy-ready output.
Employee Total Cost Calculator Estimate loaded employee cost from pay, burden, benefits, equipment, software, and overhead, with monthly, hourly, and cost-mix views.
Employee Turnover Rate Calculator Calculate employee turnover from period exits and headcount, then verify denominator choice, annualized rate, separation mix, and review flags.
Endurance Fuel Planner Plan run or ride fueling from duration, carb targets, sweat rate, sodium profile, bottle size, and interval reminders.
Environment Variable Inventory Checker Compare required environment variables with a pasted inventory, flag missing, blank, placeholder, duplicate, and secret-like entries with redacted output.
Ephemeral Port Exhaustion Calculator Estimate ephemeral port exhaustion risk from source pools, hot-destination churn, hold time, reserves, and NAT caps with mitigation targets.
Epoch Time Converter Convert epoch seconds, milliseconds, or local datetime values into UTC, selected-zone, date-part, timeline, and year-progress outputs.
Epworth Sleepiness Scale (ESS) Assessment Score usual daytime dozing across eight ESS situations, then review the 0-24 band, vehicle-safety cue, top items, and prior-score change.
Error Budget Burn Rate Calculator Calculate SLO burn rate from current error ratio and remaining budget, then see runway, alert windows, and mitigation targets for incidents.
Error Budget Calculator Calculate request error budget use from SLO targets, observed bad events, traffic projection, burn rate, runway, and policy gates.
Espresso Shot Planner Plan an espresso recipe from dose, ratio, yield, time, temperature, and pressure, then log pulls against flow and tolerance bands.
Ethernet Frame Efficiency Calculator Calculate Ethernet frame efficiency from payload size, VLAN tags, and wire-time overhead, with goodput, frame-rate, and target-rate checks.
Event Schedule Generator Turn session rows into a timed event run sheet with owner handoffs, gap and overlap checks, timeline charting, and calendar export.
Exchangeable Image File Format (EXIF) Viewer & Editor Edit image EXIF metadata in your browser, check GPS and serial privacy risks, and export a cleaned JPEG, PNG, or WebP sharing copy.
Expense Policy Checker Check expense rows against receipt thresholds, category caps, mileage math, duplicates, and blocked categories with review-ready flags.
Extensible Markup Language (XML) Converter Convert XML into tables, JSON, JSON Lines, SQL, and formatted XML with record-path selection, schema clues, and local parsing.
Faraid Calculator Calculate modeled Faraid shares after estate deductions and wasiat, then review heir allocations, residue handling, and profile warnings.
Fat-Free Mass Index (FFMI) Calculator Calculate FFMI from weight, height, and body-fat or lean-mass inputs, then compare normalized score, benchmark band, and uncertainty.
Favicon Generator Generate favicon PNGs and favicon.ico from one source image in your browser, with app icon profiles, HTML links, manifest JSON, and readiness checks.
Feature Flag Cleanup Checker Review feature flag inventories for stale, expired, ownerless, dependency-blocked, or code-referenced flags with a cleanup queue.
Fertilizer Solution Mix Calculator Mix a fertilizer solution from tank volume and elemental N-P-K targets, then compare recipe amounts, nutrient gaps, and stock density.
Fiber Link Budget Calculator Model a fiber link budget from optic power, cable loss, connectors, and splices, then check margin, reserve, overload, and reach.
File Encryptor & Decryptor Encrypt or decrypt one local file with AES-GCM or compatibility modes, KDF controls, integrity checks, and recovery metadata review.
File Hash Generator Hash one local file in the browser, compare MD5, SHA, SHA-3, or RIPEMD-160 digests, and keep session history with salt and case context.
File Transfer Time Calculator Estimate transfer duration from payload size, bandwidth, overhead, compression, RTT, TCP window, packet loss, and target-window limits.
File and Disk Size Converter Convert file and disk sizes across decimal and IEC units, then model usable capacity, allocation slack, and common storage-fit tiers.
File to PDF Converter Convert files to PDF-ready output with image and text paths, Office compatibility checks, PDF/A warnings, readiness scores, and handoff exports.
Filebeat Grok Pattern Generator Build a Filebeat Grok pattern from a sample log line, then review match groups, ECS field names, pipeline JSON, and sample coverage.
Final Grade Calculator Find the final exam score needed for a target course grade, including remaining work, curves, buffers, ceilings, and outcome checkpoints.
Finland AIS Vessel Tracker Look up Finnish AIS vessels by identifier, name, type, or radius and review identity, position, speed bands, signal checks, and map links.
Fireplace Screensaver Simulator Shape a fireplace screensaver with flame, embers, smoke, wind, glow, fullscreen preview, and hearth metrics for smoother ambient loops.
Firewall Deny Log Analyzer Analyze firewall deny logs locally, group repeated source-service blocks, and rank watched-port hotspots with parser and CIDR confidence checks.
Firewall Rule Matrix Generator Turn firewall flow rows into a review matrix with scope scoring, audit findings, object planning, platform handoff notes, and heatmap exports.
Firewall Rule Review Report Review firewall rule inventories for stale, broad, privileged, expired, or ownerless access and turn the queue into an evidence report.
Firewall Shadow Rule Checker Find shadowed firewall rules in ordered ACL exports, compare full and partial overlaps, and prioritize remediation by action impact.
Five Number Summary Calculator Summarize pasted data with quartiles, IQR fences, outlier flags, sorted values, and a box-plot chart for spreadsheet or classroom checks.
Fixed Deposit Calculator Estimate fixed deposit maturity value with APR/APY handling, credit schedules, tax timing, inflation-adjusted return, and deposit coverage checks.
Flashcard Sheet Generator Make printable flashcard sheets from term-answer pairs, with duplex print checks, seeded shuffles, cut guides, parse logs, and exports.
Flight Delay Tracker Check a flight number and departure date against sample or provider data, then compare status, delay minutes, matches, and timeline views.
Flight Emissions Tracker Estimate flight CO2e from route legs or distances, with cabin, traveler, SAF, radiative forcing, offset cost, and leg-by-leg audit details.
Flight Tracker Track a live aircraft by callsign or ICAO hex, narrow OpenSky results by region or global scan, and review position, speed, heading, map, and matches.
Flooring Calculator Estimate flooring boxes from room area, carton coverage, layout waste, spare stock, and price, with metric or imperial buying checks.
Forbearance 8 Assessment Reflect on eight forbearance items, compare fault tolerance with viewpoint room, and see descriptive 8-48 reserve bands for ordinary conflict.
Fraction Practice Generator Generate fraction practice worksheets with repeatable seeds, answer keys, worked steps, denominator safeguards, and print-ready layouts.
Free Fall Calculator Calculate ideal free-fall time, impact speed, trajectory, gravity comparisons, and optional impact energy from height and initial velocity.
Free Space Path-loss & RSSI Calculator Calculate FSPL and predicted RSSI from distance, frequency, gains, and losses, with reserve verdicts, Fresnel clearance, and range charts.
Freelance Tax Set-Aside Calculator Plan a U.S. freelance tax set-aside from client receipts, expenses, cadence, W-2 wages, safe-harbor targets, and 2026 reserve mix.
Friel Heart Rate Zone Calculator Calculate Friel heart rate zones from LTHR, sport, and field-test average, with current-HR lookup and time-in-zone planning.
Fuel Efficiency Converter Convert MPG (US), L/100 km, and km/L readings with direction cues, unusual-value warnings, rounded tables, and a sensitivity chart.
GHS Hazard Pictograms Quiz Practice GHS hazard pictograms by matching each red-diamond symbol to its meaning, then review your score, missed answers, and accuracy split.
GPA Calculator Calculate GPA from course rows, credits, grades, repeats, and pass-fail rules, with transcript audit, target gap, and grade-lift plan.
GST Calculator Calculate GST from taxable, inclusive, or tax-only amounts, then check quantity, rounding scope, split tax heads, and rate scenarios.
Garden Bed Planner Plan a garden bed from crop, spacing, bed size, and planting date with row counts, soil and mulch estimates, layout, and harvest timing.
Garden Calendar Planner Plan a garden calendar from crops, season, start date, climate zone, and bed notes with dated tasks, assignments, and workload cues.
Gas Mileage Calculator Calculate gas mileage from distance and fuel used, then compare MPG, L/100 km, trip cost, tank range, and fuel-use forecasts.
General Self-Efficacy Assessment Check general self-efficacy with the 10-item GSE, then review the 10-40 score, mean, reference anchor, lane map, and private answer review.
Generalized Anxiety Disorder (GAD-7) Assessment Score seven GAD-7 symptoms for the last two weeks, review the 0-21 band, 10-point screening cue, function item, and prior-score change.
Geriatric Depression Scale (GDS-15) Assessment Screen older-adult mood with 15 yes-or-no GDS items, review keyed scoring, 5 and 10 boundary notes, higher-scored items, and prior change.
Git Branch Staleness Analyzer Review branch inventories locally with age, merge, protection, and ahead/behind signals to queue stale, near-stale, and unknown-date cleanup work.
Git Diff Risk Analyzer Score Git diffstat or numstat locally to flag high-churn files, sensitive paths, deletion-heavy changes, generated artifacts, and binary diffs.
GitHub Actions Matrix Generator Build GitHub Actions matrix workflow YAML from runtimes, runners, triggers, caching, and include/exclude rows with checks and ledgers.
GlusterFS Volume Capacity Calculator Plan GlusterFS usable capacity from brick counts, layout, fill target, and recovery reserves with set maps and arbiter sizing checks.
Good VO2 Max by Age Lookup Find the good VO2 max range for an adult age and reference sex, classify a measured value, and see the next-tier gap with source notes.
Grade Calculator Calculate a current course grade from points, percentages, or letter marks, then test weights, dropped work, penalties, and target averages.
Gratification Delay Timer Practice waiting before a reward with a lock timer, if-then plan, urge rating, pause penalties, streaks, and outcome notes for reflection.
Gravel Calculator Estimate gravel for driveways, paths, or beds with area, depth, density, allowance, supplier rounding, tonnage, cost, and bag checks.
Grind Size Chooser Choose a coffee grind size for espresso, pour-over, press, or cold brew using brew time, taste feedback, micron bands, and dial guidance.
Grit-S Assessment Score the eight-item Grit-S, compare consistency with perseverance, and review item-level cues for long-term goal follow-through.
Growth Chart Report Generator Turn pediatric visit rows into a growth report with percentile trends, velocity guardrails, screening flags, charts, and follow-up cues.
Growth Percentile Trend Calculator Track height, weight, or BMI percentiles across visits, then review WHO/CDC shifts, band crossings, projections, and follow-up cues.
Growth Screening Flag Checker Screen pediatric growth visits for percentile drift, height velocity, corrected-age, adiposity, and family-height flags with triage guidance.
Growth Velocity Calculator Calculate height or weight growth velocity across visits, compare each interval with expected bands, and review spacing and follow-up cues.
Growth Z-Score Calculator Calculate pediatric growth z-scores from age, sex, height, weight, or BMI, with WHO/CDC references, percentile gates, and preterm-age checks.
HA Failover Budget Calculator Model HA failover time from probe cadence, promotion, catch-up, routing, client tail, and validation, with RTO fit and tuning scenarios.
HA Pair Role Consistency Checker Check HA pair inventories for active and standby drift, stale sync, heartbeat gaps, priority mismatches, and VIP conflicts before failover.
HAProxy Backend Config Generator Build an HAProxy backend block from server rows, balance mode, health checks, TLS choices, and review warnings before copy or download.
HCL Converter Convert HCL or Terraform config into YAML, JSON, INI, env, and properties views with block counts, path ledgers, and schema checks.
HEXACO Personality Inventory (HEXACO-60) Assessment Build a HEXACO-60 profile across six factors, compare optional reference means, and inspect facet and item evidence without uploads.
HIIT Workout Timer Plan a HIIT workout timer from exercise lines, work-rest intervals, rounds, warm-up, recovery, and cooldown, with local cues and logs.
HPI-Style Bright-Side Personality Proxy Assessment Review HPI-style workstyle traits with a public-domain IPIP proxy, showing raw scale means, derived signals, and answer evidence.
HTML Boilerplate Generator Generate an HTML starter document with title, language, metadata, asset paths, head checks, and copy-ready markup for a new page.
HTML Entity Lookup Look up HTML entities, code points, and symbols, then choose named, numeric, attribute-safe, CSS, JavaScript, or URL-ready output.
HTML Escaper Escape text or markup for HTML text nodes, attributes, XML, or strict handoff, with entity preservation checks and treatment ledgers.
HTML Minifier Minify HTML in your browser, compare byte savings, and review comment, raw-text, spacing, and attribute checks before copying output.
HTML Unescaper Decode escaped HTML text or small local files in your browser, compare strict and tolerant entity handling, and review unresolved or script-shaped output.
HTTP Access Latency Log Analyzer Analyze NGINX, Apache, or ALB access logs locally with endpoint P50/P95/P99, 5xx rate, slow-request counts, and parser-coverage findings.
HTTP Security Headers Checker Review pasted HTTP response headers for HSTS, CSP, cookies, CORS, cache, and disclosure risks with a scored remediation queue.
HVAC Sizing Calculator Estimate HVAC cooling load from area, height, climate, envelope, sun, occupants, and heat loads, with size-fit and oversizing checks.
Hash Type Identifier Identify likely hash formats from pasted values or local files, with confidence buckets, cleanup hints, ambiguous overlaps, and verifier next steps.
Headcount and FTE Calculator Calculate workforce FTE from employee, group, or department rows, with contractor handling, headcount gaps, warnings, and rollup charts.
Heart Rate (HR) Zones Calculator Calculate heart rate zones from age, known max HR, or HR reserve, then compare formulas, current pulse, and session time-in-zone targets.
Heart Rate Variability (HRV) Resonance Finder Estimate an HRV resonance breathing rate from body and pulse inputs, then review cycle timing, comfort warnings, trial window, and response curve.
Height-for-Age Percentile Calculator Calculate a child's height-for-age percentile with age, sex, length or stature, plus z-score, reference comparison, and stature screen margins.
High School GPA Calculator Calculate weighted and unweighted high school GPA from transcript rows, with course audit notes, policy controls, and target-gap planning.
Hostname Naming Standard Checker Check hostnames, URLs, and CSV rows against DNS syntax, regex naming rules, lowercase policy, suffix checks, and duplicates.
Hreflang Tag Generator Generate hreflang head tags from locale and URL rows, then audit self-reference, x-default coverage, duplicate locales, and fallback gaps.
Hypertext Transfer Protocol (HTTP) Header Checker Check a live HTTP URL for response headers, redirect drift, cache rules, cookie flags, CORS exposure, and prioritized hardening findings.
Hypertext Transfer Protocol (HTTP) Redirect Checker Trace an HTTP redirect chain hop by hop, compare final status, HSTS, host handoffs, latency, loops, and copy a replayable cURL command.
IAM Policy Permissions Analyzer Review IAM policy JSON for wildcard actions, broad resources, sensitive service exposure, and least-privilege findings before approval.
IAM Policy Wildcards Checker Review AWS IAM policy JSON for wildcard Action, Resource, Principal, NotAction, and NotResource risks with severity-ranked remediation rows.
INI Converter Convert INI or CFG settings into JSON, YAML, env, properties, and normalized INI with duplicate-key notes, path views, and schema checks.
IOPS / MBps / GB-per-day Converter Convert IOPS, throughput, and daily volume from block size and active hours, then check safe ceiling headroom and cloud disk fit.
IP Overlap Checker Check IPv4 inventories for overlapping CIDR blocks, host-bit fixes, duplicate address counts, coverage blocks, and change-review actions.
IPIP Personality Inventory (IPIP-NEO-120) Assessment Build an IPIP-NEO-120 Big Five profile from 120 ratings, with raw domain totals, 30 facets, profile spread, and item evidence.
IPIP Personality Inventory (IPIP-NEO-60) Assessment Build a 60-item IPIP-NEO-60 Big Five profile with domain means, facet clues, profile maps, and local-only answer review exports.
IPsec Overhead Calculator Size IPsec inner MTU and TCP MSS from underlay MTU, ESP profile, NAT-T, and path extras, with overhead stack and warning checks.
IPv4 Allocation Planner Plan IPv4 subnets from a parent CIDR and host demands, with aligned ranges, usable-capacity checks, fit audits, and address-space charts.
IPv4 Renumbering Planner Plan IPv4 renumbering waves from host mappings, timing limits, DNS and DHCP settings, with readiness checks and rollback rows.
IPv4 Supernet Calculator Summarize IPv4 CIDR lists into a single cover route or exact aggregate set, with normalization, overlap cleanup, gap exposure, and charts.
IPv6 Address Compressor / Expander Normalize one IPv6 address into compressed, expanded, binary, reverse-DNS, hextet, prefix, zone, and dotted-tail views with warnings.
IPv6 Address and Subnet Calculator Calculate an IPv6 subnet from an address or CIDR, with canonical range, prefix capacity, reverse DNS alignment, and EUI-64 host examples.
IPv6 Prefix Plan Calculator Plan an IPv6 parent prefix into site and LAN blocks, check demand fit, spot /64 and nibble-boundary warnings, and preview allocation rows.
Iced Coffee Flash Brew Calculator Calculate a flash-brew iced coffee recipe from target yield and ice split, with coffee dose, hot-water mass, pour timing, and melt checks.
Ideal Weight Calculator Compare classic ideal-weight formulas with an adult BMI corridor, current-weight status, frame adjustments, and chart-ready planning outputs.
Image Background Remover Remove a simple image background in your browser, tune color sensitivity and feathering, then download a transparent PNG with mask diagnostics.
Image Compressor Compress an image in your browser, preview size and quality changes, and check resize, target-size, and hidden-data settings before download.
Image Cropper Crop images locally with exact ratios, source-pixel rectangles, output-size checks, live previews, and PNG, JPEG, or WebP downloads.
Image Format Converter Convert one image locally, resize or flatten transparency, compare byte-size changes, and catch format-support warnings before download.
Image Metadata Stripper Strip image metadata in your browser with EXIF, XMP, IPTC, GPS-hint checks, clean JPEG/PNG/WebP output, and a cleanup receipt.
Image Resizer Resize one image in your browser with fit, contain, cover, quality, size-cap, preview, and no-upscale checks before downloading.
Image to Base64 Encoder Turn one image into Base64, a Data URI, and embed snippets with local resizing, payload length checks, and delivery-fit warnings.
Impedance Calculator Calculate series RLC impedance from reactance or L/C/f values, with phase, power factor, RMS current estimates, and a phasor map.
Incident Action Items Tracker Turn incident action rows into a follow-up ledger with owner rollups, due-date warnings, blocker flags, missing-field checks, and exportable summaries.
Incident MTTx Metrics Calculator Calculate incident MTTD, MTTA, MTTC, and MTTR from lifecycle CSV rows, with target breaches, P85 tails, warnings, and charts.
Incident Timeline Report Build a sorted incident timeline from CSV or notes, flag phase gaps and long quiet periods, and produce a review-ready handoff report.
Income Tax Calculator Estimate income tax from monthly or annual income with official-source presets, custom brackets, scenario deltas, guardrails, and a tax curve.
Insomnia Severity Index Assessment Score recent insomnia burden with the seven-item ISI, published severity bands, top symptom drivers, trend context, and follow-up cues.
Insulation Calculator Estimate insulation packages from measured area, openings, waste, R-value, and package coverage, with target gaps and heat-loss comparison.
Interface Description Standard Checker Audit network interface descriptions from config, CSV, or show output, then flag missing evidence, short text, duplicates, and cleanup rows.
Intermittent Fasting Planner Plan a daily intermittent fasting schedule from your first meal time, safety profile, meal cadence, weekend shifts, and adherence safeguards.
Internet Protocol (IP) Geolocation Finder Check a public IP address, domain, or URL for approximate location, timezone, ASN, reverse DNS, map coordinates, and follow-up evidence.
Internet Protocol version 4 (IPv4) Subnet Calculator Calculate an IPv4 subnet from CIDR or dotted-mask input, then check host range, wildcard mask, capacity fit, VLSM splits, and address math.
Internet Protocol version 4 (IPv4) Subnet Split Calculator Split an IPv4 parent block into equal child subnets, compare prefix or count choices, check per-child host fit, and build a ledger.
Interpersonal Reactivity Index Assessment Score the 28-item IRI to compare perspective taking, fantasy, empathic concern, and personal distress with charts and item checks.
Interview Questions Generator Build a structured interview guide from a role brief, focus areas, timing, question mix, scoring anchors, risk signals, and exports.
Invoice Due Date Calculator Calculate invoice due dates from net, EOM, business-day, weekend, and holiday rules, with skipped-date warnings and status checks.
Invoice Late Fee Calculator Calculate invoice late fees from due dates, grace periods, balances, rates, caps, and rounding, with fee-day timing and AR note output.
Irrigation Runtime Calculator Calculate sprinkler or drip runtimes from ETo, depth, gallons, soil reserve, efficiency, and cycle-soak checks for controller planning.
JSON Converter Turn JSON or JSON Lines into clean tables, path audits, and handoff formats with flattening controls and precision warnings for records.
JSON Formatter Turn messy JSON into readable, compact, and deterministic outputs with duplicate-key checks, node paths, size charts, and local file loading.
JSON Schema Breaking Changes Checker Compare released and proposed JSON Schemas, then find required-field, type, enum, constraint, closure, and local-ref breaking changes.
JSON Validator Validate JSON, JSONC, JSON5, or JSON Lines in your browser, then review syntax errors, duplicate keys, precision risks, and formatted output.
JSON to CSV Converter Turn JSON arrays or JSON Lines into CSV or TSV, choose record paths and nested-value handling, and guard spreadsheet-bound cells.
JSON-LD Generator Generate JSON-LD for Article, Product, Organization, or FAQ pages, then review visible-content matches, audit rows, and copy-ready markup.
JUnit Test Report Analyzer Turn JUnit XML into a CI gate readout with pass-rate math, hard-failure triage, retry signals, skipped cases, and slow-test cues.
JWT Claims Risk Checker Check a JWT or decoded payload for risky claims, lifetimes, issuer and audience mismatches, broad scopes, and readable sensitive data.
JWT Decoder Decode a compact or Bearer JWT in your browser, inspect readable claims, and review timing, issuer, audience, and signature-trust warnings.
JavaScript Minifier Minify JavaScript in your browser with syntax feedback, size and gzip checks, source-map output, and safer settings for modules or scripts.
Job Satisfaction Survey Score current job satisfaction across 36 JSS items with a 36-216 total, nine facet bands, strongest supports, and follow-up cues.
Jumbo Frame Savings Calculator Estimate jumbo-frame packet-rate and overhead savings from payload rate, MTU sizes, eligible traffic share, path scope, and CPU cost assumptions.
Jungian Type Profile Assessment Reflect on Jungian preference pairs, get a four-letter proxy code, and review pair margins, radar balance, and a derived function preview.
Keepalived VRRP Config Generator Build a Keepalived VRRP config from VIPs, priorities, peer mode, health tracking, and failover timing checks before copying output.
Kessler Psychological Distress Scale (K10) Assessment Score K10 distress over the last 4 weeks, compare common and Australian bands, and review high items, factor load, and follow-up cues.
Kessler Psychological Distress Scale (K6) Screener Screen past-30-day distress with six K6 items, see the 0 to 24 total against 5+ and 13+ cutoffs, and review item drivers before follow-up.
Knockout Advancement Calculator Resolve a two-leg knockout tie from scores, host order, away-goal rules, extra time, penalties, and second-leg outcome maps for review.
Kubernetes Cluster Capacity Calculator Estimate safe Kubernetes replicas from allocatable resources, pod requests, DaemonSet overhead, rollout surge, PDB rules, failures, and IP limits.
Kubernetes Deployment Generator Generate Kubernetes Deployment YAML from image, service, probes, resources, rollout, and security choices with readiness review tables.
Kubernetes Events Timeline Analyzer Analyze Kubernetes event captures to rank Warning reasons, object hot spots, repeat counts, and timeline bursts from kubectl text or JSON.
Kubernetes Pod Security Context Checker Check Kubernetes workload YAML for securityContext gaps, Pod Security profile blockers, inherited settings, risk scores, and patch cues.
Kubernetes Resource Requests Checker Check Kubernetes manifests for missing CPU and memory requests, limit policy gaps, QoS signals, scheduler footprint, and sizing cues.
LACP Bundle Capacity Calculator Calculate usable LACP bundle capacity from member speed, failed links, hash efficiency, reserve, demand, and single-flow pinning risk.
LaTeX Editor Edit LaTeX equations with live preview, brace and macro diagnostics, and reusable MathML, AsciiMath, SVG, image, or PDF outputs.
Large Language Model (LLM) Usage Cost Calculator Estimate LLM API spend from token counts, rate cards, cache hits, retries, growth, fixed fees, and budget caps with model cost comparisons.
Late Work Penalty Calculator Calculate late-work score penalties from due and submitted times, grace rules, day counting, policy mode, caps, cutoffs, floors, and rounding.
Lean Body Mass Calculator Estimate lean body mass from height, weight, sex, and optional body-fat checks, with formula spread, FFMI, warnings, and comparison charts.
Learning Quiz Pack Generator Build a repeatable visual-literacy quiz pack with seeded geography, signal, and Braille questions, answer keys, coverage checks, and mix charts.
Letter Tracing Sheet Generator Build printable letter tracing sheets with A-Z ranges, case practice, guide lines, seeded row plans, formation cues, and teacher review tables.
Liebowitz Social Anxiety Scale (LSAS-SR) Assessment Check LSAS-SR social anxiety over the past week with fear and avoidance totals, 30 and 60 anchors, subscale splits, and situation drivers.
Life Orientation Test-Revised (LOT-R) Assessment Score LOT-R optimism from the six scored items, see direct and reverse-scored support, and compare the 0 to 24 total with context cues.
Load Balancer Pool Capacity Calculator Plan load balancer pool capacity from backend RPS, weights, health, utilization, growth, and N+ reserve with bottleneck and saturation views.
Locus of Control Orientation Proxy Assessment Reflect on locus-of-control patterns with paired prompts, then compare self-direction, chance, and powerful-others scores with tilt.
Log Sampling Rate Calculator Set a log sampling rate from event volume, size, daily storage target, full-fidelity reserve, bursts, and overhead with keep-policy guidance.
Long Division Calculator Work through whole-number long division with quotient, remainder, decimal continuation, reduced fraction, step table, and verification equation.
Lorem Ipsum Generator Generate placeholder text by paragraph, sentence, or word target with tone, seed, vocabulary, metrics, and sentence-length checks.
Lumber Calculator Estimate lumber boards, board feet or cubic metres, waste, bundle rounding, kerf, and material cost from finished pieces and stock size.
MAC Address Details Lookup Look up a MAC address, normalize EUI-48 or EUI-64 formats, and separate local bit flags, vendor evidence, and randomized-device warnings.
MAS-12 Medication Adherence Proxy Assessment Assess medication-routine friction with a MAS-12-style proxy, keyed lane scores, guide bands, and follow-up prompts for safer medication talks.
MBTI-Style Type Preference Proxy Assessment Explore a disclosed MBTI-style proxy with four preference-pair margins, close-call flags, type-code context, and answer review.
MTA-STS Validator Validate a mail domain's MTA-STS record, HTTPS policy, certificate freshness, and readiness checks before moving to enforcement.
MTU MSS Calculator Calculate a TCP MSS clamp from path MTU, encapsulation overhead, IP version, and safety reserve with DF ping payload checks.
MX Record Lookup Check MX records for a domain, URL, or mailbox, with Null MX detection, host expansion, resolver comparison, and mail-policy signal checks.
Macro Target Calculator Set daily calories, macro grams, protein density, and meal splits from body metrics, activity, goal pace, BMR formula, and ratio rules.
Maintenance Window Conflict Checker Check maintenance windows for time overlaps, owner or dependency collisions, blackout hits, concurrency spikes, and review-ready conflict briefs.
Malaysia PCB Calculator Estimate Malaysia PCB/MTD for a payroll month using 2026 HASiL formulas, EPF caps, TP1/TP3 inputs, zakat offsets, and CP38 split.
Malaysia Tax Deductions and Reliefs Calculator Estimate Malaysia resident reliefs for YA 2024 or 2025, cap each claim, and turn aggregate income into a chargeable-income handoff.
Map Outlines Quiz Practice map outline recognition across US states, territories, or world countries with seeded quizzes, load checks, answer review, and score charts.
Marathon Pace Predictor Estimate marathon finish time from weekly distance, training speed, and runs per week, with pace splits, warnings, and readiness charts.
Maritime Signal Flags Quiz Practice maritime signal flags for ICS letters, numeral pennants, or mixed drills, then review your score, missed flags, and accuracy split.
Markdown Previewer Preview Markdown from pasted text or a local file, compare GFM and CommonMark behavior, and check sanitized HTML, headings, links, and exports.
Markdown Table Generator Turn CSV, TSV, semicolon, or pipe rows into a GitHub-style Markdown table with header detection, pipe escaping, and column audits.
Markdown to HTML Converter Convert Markdown into sanitized HTML fragments or full documents, preview the rendered output, and review link, heading, and raw-HTML notes.
Marking Time Calculator Plan grading workload from submissions, minutes per item, deadline, daily hours, buffers, batches, and warnings for overrun risk.
Markup Calculator Calculate markup, margin, and list price from unit cost, fees, discounts, and target pricing, with break-even checks and scenario guidance.
Maslach Burnout Inventory (MBI) Assessment Check MBI burnout dimensions separately with EE, DP, and PA totals, historical band guides, burden-item flags, and follow-up cues.
MathML Editor Edit MathML markup with live native or SVG preview, namespace and structure checks, element charts, and formatted markup exports.
Matrix Screensaver Simulator Build a Matrix-style code rain screensaver with glyph sets, density, speed, glow, fullscreen preview, and stream metrics for readable loops.
Maximal Oxygen Uptake (VO2 Max) Calculator Estimate VO2 max from heart-rate, Cooper, 1.5-mile, or Rockport data, then compare METs, protocol warnings, and age-sex benchmarks.
Meditation Timer Plan a meditation session with prep countdown, start and interval bells, quiet visual cues, schedule tables, and chime charts.
Meeting Agenda Generator Build a timeboxed meeting agenda from outcomes, attendees, and topic rows with readiness checks, owner cues, and overbooked-time warnings.
Meeting Cost Calculator Calculate meeting cost from attendee rates, duration, added work time, recurrence, and right-size scenarios with audit notes for assumptions.
Meeting Minutes Generator Turn meeting notes into structured minutes with decision logs, action registers, readiness checks, and copyable Markdown for follow-up.
Meta Tag Generator Generate search and social meta tags from page facts, then review titles, canonical URLs, robots rules, images, and copy-ready head markup.
Mid-Parental Target Height Calculator Estimate mid-parental target height from parent heights and child sex, compare formula methods, and read family bands with growth-context cautions.
Mindful Attention Awareness Scale (MAAS-15) Assessment Review MAAS-15 mindful attention with a 1 to 6 mean, support-anchor counts, reflective lanes, and item notes for daily awareness patterns.
Mini-IPIP Big Five Assessment Build a Mini-IPIP Big Five snapshot with reverse-keyed trait means, descriptive lanes, cluster spread, trait-ring view, and answer audit.
Missing Number Sheet Generator Generate missing-number worksheets from ranges, steps, and blank rules, with printable sheets, answer keys, setup notes, and reusable seeds.
Mole Gram Particle Converter Convert grams, moles, and particles with molar mass, substance presets, Avogadro settings, formula paths, and lab wording checks.
Monthly Budget Calculator Build a monthly budget from take-home income, needs, wants, goals, cushion target, debt payoff, and emergency runway checks.
Mood and Stress Screener Comparator Compare PHQ-9, GAD-7, DASS, Kessler, stress, and older-adult mood screeners by concern, time, context, and safety needs.
Morse Code Decoder Decode written Morse into readable text, tune separators and unknown-token handling, and review symbol counts, timing charts, and practice audio.
Morse Code Generator Convert text or TXT files to Morse code with WPM timing, Farnsworth spacing, playback, WAV export, metrics, and a timeline chart.
Morse Code Quiz Practice Morse code by matching dot-dash patterns to letters, numbers, or mixed characters, then review your score and missed answers.
Mortgage Calculator Estimate mortgage payment, cash to close, PMI, escrow, and payoff timing with amortization tables, extra principal, and cost charts.
Motorcycle Tire Pressure Calculator Set cold motorcycle tire pressure from bike type, load, manual baselines, weather, and current readings with front/rear action checks.
Mulch Coverage Calculator Plan a mulch order from bed shape, top-up depth, bag size, and supplier rules, with bag-versus-bulk estimates and lift-risk cues.
Multiple Choice Sheet Generator Build multiple-choice worksheets from row or Aiken input with seeded ordering, answer keys, quality checks, and printable exports.
MySQL Slow Query Log Analyzer Analyze MySQL slow query logs to group SQL fingerprints, flag latency and scan gates, and queue plan, index, lock, or sort checks.
NAT Pool Capacity Calculator Size a NAT pool from public IPs, usable ports, users, reserves, and hot-destination demand, with shortfall warnings and IP scenarios.
NEO PI-R Proxy Assessment Explore a 120-item IPIP NEO-style profile with raw domain and facet means, crosswalk charts, reverse-key checks, and answer review.
NGINX Proxy Headers Checker Check an NGINX proxy block for forwarded-header gaps, trust-boundary risks, WebSocket needs, timeout issues, and prioritized fixes.
NTP Offset Log Checker Check NTP or chrony rows, compare offset, jitter, reach, stratum, and selected-source evidence, and turn drift into a peer ledger.
Name Tracing Sheet Generator Create printable name tracing sheets from class rosters, with local TXT/CSV import, guide-line options, long-name checks, and practice records.
Nameserver Health Check Check a domain's nameserver health with resolver comparison, glue and CNAME checks, SOA timer review, IPv6 coverage, and repair steps.
NetFlow Top Talkers Analyzer Find the busiest NetFlow or IPFIX talkers from pasted collector rows, with grouping, traffic-share warnings, service mix charts, and exports.
Netcat Command Generator Build a netcat or ncat command for connect, listen, scan, TLS, proxy, or transfer tasks, with shell-aware quoting and compatibility warnings.
Netplan Config Generator Build Netplan YAML for static interfaces with renderer, DNS, routes, MAC matching, MTU, and validation warnings before applying changes.
Network Audit Findings Report Turn network audit findings into a prioritized register, remediation queue, evidence-gap review, and severity-by-area report for owner handoff.
Network Change Plan Report Build a network change plan with readiness gates, run order, rollback checks, residual risk, and a cutover profile before the maintenance window.
Network Throughput Calculator Estimate usable network throughput from link speed, RTT, TCP window, packet loss, streams, and packet-rate limits, with tuning guidance.
Nginx Server Block Generator Build an NGINX server block for static, PHP-FPM, or reverse proxy sites, with TLS choices, redirects, ledgers, and deployment checks.
Number Tracing Sheet Generator Build printable number tracing sheets with range controls, trace styles, counting cues, formation guides, and print-ready teacher exports.
O*NET Interest Profiler-60 (IP-SF) Assessment Build a Holland RIASEC code from 60 activity ratings, then compare theme spread, hexagon fit, and task evidence for career exploration.
OAuth Redirect URI Policy Checker Check OAuth redirect URI registrations against observed requests, catch exact-match drift, wildcard scope, fragments, and nested redirect risks.
OCR PDF Tool Extract text from PDF pages in your browser, using native text when available and OCR with page confidence, DPI guardrails, and TXT/JSON exports.
OSPF Interface Cost Calculator Calculate OSPF interface cost from reference bandwidth and link speed, compare manual overrides, and spot minimum-cost collapse.
Observability Event Volume Calculator Estimate retained observability storage from event rate, event size, retention, compression, replicas, and quotas, with runway charts.
On-call Handover Report Prepare an on-call handover from shift rows, owners, and escalation notes, then review hot items, gaps, and readiness before sign-off.
One Rep Max (1RM) Calculator Estimate one-rep max from a working set, compare seven formulas, and turn the selected result into training loads, rep ladders, and charts.
Online Bomberman Game Play a Bomberman-style maze run with bombs, breakable blocks, powerups, difficulty modes, local best scores, events, and a score timeline.
Online Breakout Game Play a Breakout-style brick game with preset or custom setups, streak scoring, local best scores, and exportable run summaries.
Online Clock Check live local, UTC, and world-zone time with offset rows, handoff window flags, Unix seconds, and calendar invite text for teams.
Online Digger Game Play a Digger-style tunnel run, collect emeralds and broken-bag gold, then review score sources, shot accuracy, bag drops, and route pace.
Online File Compressor Compress one local file in your browser, choose archive or stream formats, and review size change, SHA-256 checks, split parts, and exports.
Online Pacman Game Play a Pac-Man-style maze run, clear pellets across difficulty and maze modes, then review power chains, fruit points, history, and run JSON.
Online Snake Game Play Snake with speed and wall rules, chain apples for slow-motion bonuses, then review score pace, crash cause, history, and timeline exports.
Online Space Invaders Game Play Space Invaders waves with mouse, keyboard, or touch controls, then review hit accuracy, threat pressure, best scores, and run summaries.
Online Tetris Game Play Tetris with speed presets, ghost and hold assists, next-piece previews, touch controls, and a score-focused run summary.
Online Tic Tac Toe Game Play Tic Tac Toe against a computer or local opponent, with hints, threat markers, board evaluation, match logs, and streak stats.
Open Graph Tag Generator Generate Open Graph and X card tags from page titles, URLs, images, article fields, and crawler checks before copying head markup.
OpenAPI Operation Coverage Checker Check OpenAPI operation coverage against test evidence, find missing or unmatched methods, and turn release-gate gaps into an owner-ready queue.
OpenVPN Client Config Generator Generate an OpenVPN client profile from endpoint, routing, authentication, cipher, and TLS settings, with review warnings before import.
Overtime Pay Calculator Calculate gross pay from hourly rate, regular and overtime hours, premium tiers, daily rows, rounding, and flat add-ons for payroll checks.
Ovulation Calculator Estimate ovulation, fertile windows, peak timing, and next-period dates from cycle length, luteal phase, and recent cycle variation.
PANAS-SF Affect Snapshot Assessment Track a past-week PANAS-SF snapshot with separate positive and negative totals, word-level signals, and prior-score comparison.
PDF Compressor Compress a PDF in your browser, preview expected size changes, and catch quality, cleanup, or file-limit warnings before downloading.
PDF Merger Merge local PDF files in the order you choose, review page counts and size guards, set output metadata, and download one browser-built PDF.
PDF Page Deleter Delete selected PDF pages in your browser, preview the keep/delete map, and catch range, size, signature, or accessibility warnings.
PDF Page Extractor Extract selected pages from one local PDF, preserve typed order or remove repeats, and verify the new file with a page manifest and checks.
PDF Page Numberer Stamp page numbers onto a PDF in your browser, choose page ranges, label styles, margins, and preview coordinates before downloading.
PDF Page Reorderer Reorder one local PDF with ranges, presets, and duplicate handling, then download a rebuilt file with a page manifest and checks.
PDF Protector Protect a PDF in your browser with qpdf encryption, open and owner passwords, permission profiles, metadata handling, and verification checks.
PDF Redactor Plan PDF redactions locally, scan selectable text for targets, flag hidden-data risks, and export evidence for a true redaction workflow.
PDF Repair Tool Inspect a damaged PDF locally, review header and parser signals, and download a normalized copy when the browser can safely rebuild it.
PDF Rotator Rotate selected pages in a local PDF by range, parity, or orientation, then review the rotation map and download a rewritten copy.
PDF Signer Add a visual signature stamp to a local PDF with typed, drawn, or image input, placement checks, and clear certificate-signature warnings.
PDF Splitter Split a local PDF into custom ranges, every-page files, or fixed packets with range checks, a packet map, manifest, and ZIP download.
PDF Unlocker Review an owner-approved PDF unlock request locally, checking file structure, password gates, authorization, and blockers before any decrypt step.
PDF Watermarker Add text watermarks to a PDF in your browser, target exact pages, tune opacity, rotation, tiling, and download a marked copy.
PDF to File Converter Convert a local PDF into text, rows, documents, slides, or page images with page ranges, password handling, and fidelity audit checks.
PEM Bundle Extractor Extract PEM blocks from pasted text or files, group certificates, CSRs, keys, and other labels, and track split output with line spans and SHA-256 hashes.
PTO Accrual Calculator Project a PTO balance from accrual rules, used leave, planned leave, caps, and carryover limits with a period ledger and policy checks.
PXE Boot Menu Generator Generate PXELINUX, iPXE, and GRUB boot menus from boot rows, defaults, timeouts, and fallbacks with ledger and validation review.
Pace & Speed Converter Convert running pace and speed between min/km, min/mi, km/h, and mph, then build finish times, splits, markers, and race projections.
Pace Band Generator Generate a race pace band from distance, finish time, marker spacing, and pacing shape, with checkpoint splits, warning checks, and exports.
Packet Capture Size Calculator Estimate packet capture storage from link rate, utilization, duration, snap length, and format, with storage-fit and packet-rate checks.
Paint Calculator Estimate paint from room or wall measurements, subtract openings, compare coverage assumptions, and round gallons or tins for a realistic order.
Parent Daily Report Generator Create a parent daily report for a child's day from meals, rest, care, activities, and notes, with printable family wording and touchpoint checks.
Password Strength Calculator Check a password locally, compare login and breach crack-time scenarios, flag weak patterns, and get upgrade advice without exporting the secret.
Patch Window Duration Calculator Plan a patch window from device count, concurrency, install and reboot time, with fit checks, phase timing, and rollback reserve cues.
Patient Health Questionnaire (PHQ-15) Assessment Score a PHQ-15 somatic symptom check-in, review the 0 to 30 severity band, top symptom drivers, body-system grouping, and prior change.
Patient Health Questionnaire (PHQ-9) Assessment Score a PHQ-9 depression check-in, review severity bands, function impact, Item 9 safety flags, symptom drivers, and prior change.
Pattern Practice Sheet Generator Generate pattern practice sheets with AB through ABBA repeats, missing-item tasks, cut-paste pieces, answer keys, and setup checks.
Paver Calculator Estimate paver quantities from area, paver size, joint gap, pattern waste, pack size, and price with takeoff rows and waste checks.
Paycheck Calculator Estimate net pay from hourly, salary, or gross inputs with 2026 federal, FICA, state/local, deduction, warning, and projection checks.
Payroll Proration Calculator Calculate prorated gross pay from salary, service dates, day-count method, holidays, unpaid leave, rounding, and method comparison rows.
Perceived Stress Scale (PSS-10) Assessment Score a PSS-10 perceived stress check-in, review reverse-scored coping items, stress-load contributors, prior change, and no-cutoff context.
Percentage Calculator Solve percent-of, part-of-whole, percent change, value-after-change, and reverse percentage questions with denominator warnings and sense checks.
Percentile Calculator Calculate percentiles from pasted numbers or local CSV/TXT files, compare inclusive, nearest-rank, and exclusive methods, and review rank details.
Personal Carbon Budget Analyzer Estimate your annual carbon footprint against a personal budget, with home energy, travel, diet, offsets, runway, and lever views.
Personal Loan Calculator Estimate monthly personal loan payments, payoff timing, total interest, and prepayment savings with origination-fee handling and schedule checks.
Personality Assessment Hub Compare personality assessment routes by goal, time, result style, context, and caveat tolerance, then review fit scores and safer wording.
Picture Word Matching Sheet Generator Generate picture-word matching sheets from vocabulary pairs with cue handling, seeded word banks, answer keys, teacher checks, and print exports.
Ping Results Analyzer Analyze pasted ping output for packet loss, jitter, high-RTT samples, timeouts, and sequence gaps with charts and exports.
Pittsburgh Sleep Quality Index Assessment Score a PSQI sleep-quality check-in, review the 0 to 21 global score, seven components, >5 threshold context, and observer cues.
PoE Budget Calculator Plan a PoE switch budget from device rows, reserve targets, cable-loss settings, and port counts with overload and shedding warnings.
Pomodoro Timer Run a Pomodoro timer with focus and break cycles, goal ETA, projected schedule rows, time-mix chart, and optional browser cues.
Port Exposure Summary Checker Review a port exposure inventory, flag public high-risk services and missing owner context, and roll hosts into a cleanup queue.
Port List Checker Clean messy port lists into TCP/UDP target strings, compressed ranges, IANA bands, and service-review cues before scans or firewall changes.
PostgreSQL EXPLAIN Plan Analyzer Review PostgreSQL EXPLAIN plans from text, JSON, or XML, with ranked cost, row-drift, scan, buffer, spill, and next-action signals.
Posttraumatic Stress Disorder Checklist (PCL-5) Assessment Score 20 past-month PCL-5 symptoms, compare 31+ and 33+ cut points with DSM-5 cluster counts, and track change from a prior total.
Power Factor Calculator Calculate power factor from kW and kVA, size reactive correction, and estimate capacitor microfarads with direction and field-check warnings.
Pranayama Sequence Planner Build a pranayama sequence from breath ratios, minutes or cycles, pace, rests, and nostril cues, with timing checks and a phase ledger.
Pre-Writing Strokes Sheet Generator Generate printable pre-writing stroke sheets for classroom practice with trace, fade, and try lanes, direction cues, readiness checks, and local exports.
Pregnancy Due Date Calculator Calculate an estimated due date from LMP, conception, IVF transfer, or ultrasound dates, then review term windows and care timing.
Primary Care PTSD Screen (PC-PTSD-5) Screen past-month PC-PTSD-5 symptoms after the trauma gate, compare 3+ and 4+ cut points, and review endorsed items for follow-up.
Profit Margin Calculator Calculate gross margin from revenue and COGS, then compare markup, target revenue, net profit, break-even headroom, and margin signals.
Progressive Muscle Relaxation (PMR) Coach Run a paced PMR routine with split-side muscle groups, cue options, planned duration, routine mix chart, and phase burden review.
Project Budget Burn Calculator Forecast project budget burn from actuals, commitments, dates, and progress, then compare runway, variance, earned value, and overrun risk.
Projected Adult Height Calculator Estimate a child's projected adult height from current stature and parent heights, then compare percentile tracking, family target fit, and scenario range.
Prometheus Retention Storage Calculator Plan Prometheus TSDB disk needs from series count or samples/sec, retention days, bytes/sample, WAL reserve, and size-retention headroom.
Prometheus Scrape Config Generator Build a Prometheus scrape config from targets, labels, intervals, limits, and per-target overrides, then review the generated YAML.
Prompt String 1 (PS1) Generator Build a Bash PS1 prompt from ordered tokens, colors, imports, and previews, with warnings for invalid variables, dates, and ANSI styling.
Properties Converter Convert Java properties text into clean JSON, YAML, INI, env, and audit views with duplicate-key warnings, path previews, and schema checks.
Protein Intake Calculator Set a daily protein target from weight, goal, training load, diet pattern, meals, and calories, with gap checks and health-context warnings.
Psychological Flexibility Assessment (AAQ-2) Check AAQ-II psychological inflexibility with a 7-to-49 score, item-level support cues, reference-band context, and private exports.
Pull Request Cycle Time Calculator Measure pull request review flow from CSV timestamps, then compare average, P85, pickup delay, open rows, target misses, and stage charts.
Punycode IDN Converter Convert Unicode and Punycode hostnames between display and DNS forms with label audits, length checks, script warnings, and copy-safe outputs.
QR Batch Generator Generate QR code image batches from pasted rows or CSV/TXT files, with duplicate checks, readiness audit, manifests, and ZIP export.
QR Label Sheet Generator Create printable QR label sheets from CSV or TXT rows, with stock or custom grids, payload checks, contrast warnings, and scan-ready print output.
Qibla Finder Find Qibla direction from GPS, city search, public-IP approximation, or manual coordinates with true or magnetic bearing, distance, map line, and compass steps.
QoS Bandwidth Allocation Calculator Allocate usable QoS bandwidth by class share, then check reserved rates, burst ceilings, best-effort headroom, and priority pressure.
Quarterly Estimated Tax Calculator Estimate 2026 U.S. quarterly tax payments from income, withholding, deductions, and safe harbor rules, then review schedules and worksheet lines.
Queue Buffer Delay Calculator Calculate queue buffer delay from buffer size, link rate, occupancy, and RTT, then compare drain time with target buffers and delay curves.
Queue Worker Capacity Calculator Size queue workers from arrival rate, throughput, backlog, and drain goals, with utilization checks, caps, and burn-down charts.
Quick Response (QR) Code Decoder Decode a QR image in your browser, inspect the payload type and URL clues, and review safety flags plus scan-trace details before opening.
Quick Response (QR) Code Generator Create a QR code for URLs, Wi-Fi, contacts, messages, events, or text with styling, logo checks, readiness scoring, and image exports.
RACI Matrix Generator Turn activity rows into a RACI matrix with ownership checks, role-load signals, handoff guidance, and chart-ready review outputs.
RADIUS Client Config Generator Generate FreeRADIUS client blocks from NAS rows, with shared-secret review, address checks, hardening directives, and deployment notes.
RADIUS Request Load Calculator Estimate RADIUS request load from access events, accounting updates, retries, and server budgets, then check active-pool and N-1 capacity.
RAID Performance Calculator Compare RAID IOPS and throughput from drive benchmarks, read/write mix, write penalty, spares, rebuild reserve, and degraded-mode targets.
RAID Planning Suite Plan a RAID layout from drive, workload, growth, rebuild, and URE assumptions with capacity, IOPS, risk, and candidate comparisons.
RAID Reliability and MTTDL Calculator Estimate RAID MTTDL from AFR, rebuild exposure, URE rate, spares, and fleet size, then compare loss probability, mitigations, and tradeoffs.
RAID Sizing Calculator Size RAID usable capacity from layout, drive size, spares, fill target, overhead, chassis limits, and growth targets with risk cues.
RAND SF-12 Health Survey (SF-12) Turn 12 SF-12 health answers into transparent 0-to-100 domain scores, PCS/MCS means, ranked gaps, and clear norm-scoring caveats.
RAND SF-36 Health Survey (SF-36) Score RAND-36 answers into eight 0-to-100 health domains, separate the one-year change item, and review physical/mental profile gaps.
ROI Calculator Calculate ROI from cost, final value, other returns, and holding period, with net gain, annualized return, payback, and benchmark gap.
RPO/RTO Gap Calculator Compare target and measured RPO/RTO windows, then flag data-loss and restore-time gaps with exposure estimates and remediation cues.
RSA Keys Converter Convert RSA PEM keys between PKCS#1, PKCS#8, and public-key wrappers in your browser with fingerprints, passphrase checks, and format guidance.
RSU and Stock Option Tax Calculator Estimate U.S. RSU and stock option tax for vesting, exercise, sale, withholding gaps, AMT exposure, payroll tax, and net cash.
Race Finish Time Calculator Estimate a race finish from distance plus pace or speed, then shape splits, planned stops, cutoff margin, key markers, and clock charts.
Race Finish Time Predictor Predict a race finish from a prior result, adjust the Riegel exponent and race-day conditions, then compare paces, splits, and scenarios.
Race Pace and Finish Time Suite Build a race pace plan from target pace, finish time, prior race, or training inputs with split ladders, scenarios, pace bands, and charts.
Race Timer Suite Track race elapsed time and split pace, capture live laps, compare cumulative splits, and export a readable race summary for follow-up.
Rack Power Density Calculator Plan rack power density from device watts, rack units, feed limits, and A+B failover checks, with headroom, heat load, and density signals.
Random Number Generator Generate random numbers from ranges with secure or seeded draws, weighting, no-repeat rules, session diagnostics, and coverage charts.
Random Picker Pick random names or rows from a list with weights, seeds, exclusions, group caps, and manifest notes that make draws easier to audit.
Rate Limit Backoff Schedule Calculator Build a rate-limit retry schedule with Retry-After floors, jitter windows, pacing math, budget checks, and safety notes for shared clients.
Rate of Perceived Exertion (RPE) Calculator Translate Borg, CR10, or lifting RPE into intensity bands, scale equivalents, heart-rate cues, and sRPE session load for workout review.
Readability Checker Check English text readability with grade estimates, reading-ease score, sentence flags, word-load cues, and charts for editing.
Reading Level Checker Check an English passage against grade-level formulas, compare target fit, and find long sentences or words that may raise reading difficulty.
Rebar Calculator Estimate a rectangular slab rebar grid with bar counts, actual spacing, stock-bar rounding, waste allowance, weight, cost, and placement checks.
Recruiting Pipeline Metrics Calculator Review a hiring funnel from applicants to hires with pass-through rates, drop-off leaks, offer acceptance, time to fill, and target checks.
Redundant Array of Independent Disks (RAID) Calculator Plan RAID usable capacity from disk sizes, layout, spares, overhead, fill targets, and rebuild risk, with cross-layout comparison.
Regex Sample Matches Checker Test a JavaScript regex against should-match and should-reject samples, with verdicts, match spans, flags, and timeout guardrails.
Regex Tester Test a JavaScript regex against sample text with flags, match and capture tables, timeout warnings, and replacement previews before reuse.
Relationship Assessment Scale (RAS) Check relationship satisfaction with the seven-item RAS, reverse-score regret and problem items, and review midpoint and item-pattern cues.
Release Cutover Window Calculator Model a release cutover window with phase timing, contingency, rollback-gate margin, required window, and runway scenarios.
Release Notes Generator Draft release notes from bullets, Conventional Commits, PR lines, or plain text, then review sections, warnings, and rollout-ready change rows.
Rent Split Calculator Split rent, utilities, and deposits across rooms with premium weights, exact shares, payment rounding, fairness notes, and charts.
Replication Backlog Time Calculator Estimate replication backlog catch-up time from write rate, backlog, capacity, compression, targets, and headroom warnings for recovery planning.
Resolver Policy Difference Comparator Compare public DNS-over-HTTPS resolver profiles for one hostname, separating open-control consensus from filtering and validation drift.
Resonant Frequency Calculator Calculate LC resonant frequency from inductance and capacitance, then check tolerance drift, Q, bandwidth, reactance, and frequency context.
Retirement Tax Savings Calculator Estimate 2026 retirement contribution tax savings and net paycheck cost with plan-limit checks, Saver's Credit, and employer match.
Reverse DNS (PTR) Checker Check reverse DNS for an IP or hostname, review PTR answers, forward confirmation, expected-name matches, and resolver drift.
Reverse DNS Zone Generator Generate an IPv4 reverse DNS zone from CIDR and PTR rows, with SOA checks, RFC2317 parent CNAMEs, and zone-review tables before handoff.
Revised Dyadic Adjustment Scale (RDAS) Assessment Assess relationship adjustment with the 14-item RDAS, compare the 0-to-69 total with the 48 cutoff, and review consensus, satisfaction, and cohesion.
Revision Schedule Planner Build a study timetable from exam dates, target hours, and weekly availability, with spaced blocks, coverage gaps, and load warnings.
Ring Size Converter Convert ring measurements and regional sizes into US, UK, ISO, and nearby chart matches with band-fit notes and circumference deltas.
Risk Register Generator Build a risk register from pasted rows, score inherent and residual exposure, and prioritize owners, reviews, and treatment actions.
Road Signs Quiz Practice US MUTCD road signs by meaning, choose regulatory, warning, or mixed sets, and review seeded scores with missed-sign detail.
Robots.txt Generator Draft a robots.txt file from crawler groups, path rules, sitemap hints, and imports, then review crawl-policy warnings before publishing.
Roofing Calculator Estimate roofing bundles from area, pitch, waste, and coverage, with metric or imperial takeoffs, accessory checks, and cost scenarios.
Rosenberg Self-Esteem Scale (RSES) Assessment Score the 10-item Rosenberg Self-Esteem Scale, review reverse-scored items, and read the 0-to-30 total with strongest and lowest supports.
Rounding Calculator Round decimal text to places, significant figures, place values, or increments with exact decimal traces, tie rules, and error checks.
Rubric Generator Build a rubric matrix from assignment goals, criteria, weights, and levels, with point allocation, descriptor drafts, and design-audit checks.
Run-Walk Interval Calculator Plan run-walk race intervals from distance, separate run and walk paces, and timing ratios, with finish estimates, cue cards, and marker tables.
SAML Assertion Timing Checker Check SAML assertion timing from XML or encoded captures, with clock-skew, bearer window, session, replay, and reject/review evidence.
SARIF Security Findings Analyzer Triage SARIF security logs with gate counts, priority findings, rule and file hotspots, baseline signals, and fingerprint coverage checks.
SAS-Style Anxiety Proxy Assessment Check recent anxiety load with a disclosed SAS-style proxy, convert the raw score to a 25-to-100 index, and review lead domains and cues.
SBOM Component Risk Analyzer Assess CycloneDX, SPDX, Syft, or CSV SBOM data with component risk scores, policy findings, license checks, identity gaps, and unmatched vulnerabilities.
SHAS-A Adult Health Anxiety Proxy Assessment Check adult health-anxiety patterns with a disclosed 14-item proxy, then review the 0-42 score, cutoff lens, top area, and high-pressure cues.
SLA Availability Calculator Check SLA availability from downtime, maintenance policy, and elapsed window, then see remaining budget, burn rate, breach risk, and checkpoints.
SLO Burn Rate Alerts Generator Generate SLO burn-rate alert YAML from a service objective, PromQL error-ratio template, burn tiers, routing labels, and budget math.
SLOAN Personality Code Assessment (Proxy) Build a SLOAN-style personality code from 20 Mini-IPIP items, then review letter strength, swing axes, adjacent codes, and answer evidence.
SMIMEA / OPENPGPKEY Lookup Check SMIMEA or OPENPGPKEY DNS records for an email identity, including owner-name hashing, DNSSEC AD status, payload clues, and resolver evidence.
SNMP Polling Load Calculator Estimate SNMP polling load from devices, objects, intervals, security, retries, and packet sizing with poller, MTU, and link-risk checks.
SPF Record Generator Generate an SPF TXT record from sender sources, provider includes, IP ranges, A/MX choices, and rollout checks for lookup budget and policy risk.
SPF Validation Report Validate a domain's SPF record with live TXT lookup, directive parsing, lookup-budget checks, terminal policy review, and expansion trace.
SQL Formatter Format SQL for the right dialect from pasted queries or local files, with statement ledgers, caveat warnings, and formatter audit checks.
SQL INSERT Generator Turn pasted rows or CSV files into SQL INSERT statements with dialect quoting, delimiter detection, literal typing, and row and column review.
SQLite Manager Open a local SQLite file in the browser, browse tables or views, run SQL, edit rowid-table cells, and export verified results.
SRV / NAPTR Service Discovery Check Check SRV and NAPTR service discovery for SIP, XMPP, or LDAP, compare resolver views, and find broken targets or fallback paths.
SSD Endurance (DWPD/TBW) Calculator Check SSD endurance from DWPD or TBW ratings, workload writes, reserve, derating, SMART counters, and growth scenarios for replacement timing.
SSH Config Snippet Generator Build OpenSSH Host blocks from CSV host rows with defaults, ProxyJump paths, identity choices, host-key policy notes, and duplicate-alias checks.
SSL CA Matcher Check a leaf certificate against a candidate issuer CA with signature evidence, DN alignment, CA-policy checks, validity guards, and a trust score.
SSL Certificate Chain Checker Check a live host or pasted PEM chain for issuer links, hostname coverage, expiry, weak crypto, and bundle readiness before install.
SSL Checker Check a public hostname's TLS posture with SSL Labs grades, certificate trust paths, protocol flags, expiry risk, and a fix queue.
SSL Expiry Checker Check a live TLS certificate expiry date, renewal lead window, hostname coverage, issuer details, fingerprints, and post-renewal evidence.
SSL Matcher (Certificate, CSR, and Key) Compare a certificate, CSR, and RSA private key in your browser with SPKI fingerprints, encrypted-key handling, match warnings, and exportable evidence.
SSL OCSP Checker Check OCSP status for a live TLS host or pasted certificate, then review responder state, freshness timestamps, warnings, and replay evidence.
SVG Placeholder Generator Create SVG placeholders with exact sizes, labels, colors, patterns, contrast checks, live preview, and copyable SVG, image, and CSS outputs.
SWOLF Analyzer Analyze swim splits and stroke counts into SWOLF trends, reference-block drift, fatigue signals, and stroke-economy charts for comparable pool sets.
Salary Raise Budget Calculator Model a raise budget from employee rows or an aggregate salary pool, with proration, employer burden, cap variance, and scenario checks.
Sales Tax Calculator Calculate sales tax for pre-tax, tax-included, or receipt tax-line checks, with rounding policies, rate scenarios, and receipt warnings.
SameSite Cookie Policy Checker Check Set-Cookie headers for SameSite, Secure, prefix, scope, and delivery gaps before SSO, payment, or embedded flows fail in production.
Satcom Status Tracker Check satellite TLE freshness, orbit class, readiness, and optional SatNOGS context before using a record for link planning or status triage.
Satellite Pass Tracker Forecast visible satellite passes from a searched or pasted TLE, with observer coordinates, elevation filters, sky arc, charts, and ICS output.
Satisfaction With Life Scale (SWLS) Assessment Check life satisfaction with the five-item SWLS, then review the official band, midpoint drift, statement spread, and shareable result.
Savings Goal Calculator Plan a savings target from balance, deposits, return, and timeline, then compare finish dates, monthly needs, growth share, and gaps.
Schutte Self-Report Emotional Intelligence Test (SSEIT) Score the 33-item SSEIT, review the 165-point total, and inspect reflective lanes, charts, and response evidence for emotional habits.
Scissor Skills Sheet Generator Create printable scissor skills worksheets with leveled cut paths, start-stop cues, guide widths, setup notes, and seeded reprints.
Score Distribution Analyzer Analyze score rows or CSV marks with mean, median, quartiles, pass rate, grade bands, outlier flags, charts, and rejected-row checks.
Seating Chart Generator Build a classroom seating chart from a roster, fixed seats, and empty desks, with repeatable shuffles, group balancing, and audit notes.
Secret Pattern Sample Checker Check configs, logs, and snippets for secret-like keys or tokens, with masked evidence, entropy cues, pattern coverage, and rotation guidance.
Secure Password Generator Generate a random password in your browser with cryptographic randomness, entropy checks, pattern-aware strength, and compatibility controls.
Secure Shell (SSH) Client Config Editor Edit SSH client config Host blocks, test wildcard matches, review risky defaults, and export generated config with lint and diff checks.
Secure Shell (SSH) Key Fingerprint Checker Check an SSH public key locally, compare SHA256 or MD5 fingerprints, review key strength, and generate known_hosts or SSHFP artifacts.
Secure Shell (SSH) Public Key Converter Convert one SSH public key between OpenSSH, SSH2, and PEM formats, then compare SHA-256 fingerprints and comments before copying.
Secure Shell (SSH) Public Key Extractor Extract an SSH public key from private-key text or public lines, then check fingerprints, bit length, derivation path, and authorized_keys output.
Secure Sockets Layer (SSL) Certificate Converter Convert certificates between PEM, DER, PKCS#7, and PKCS#12 in your browser, with chain details, expiry checks, and key handling notes.
Secure Sockets Layer (SSL) Certificate Decoder Decode PEM, DER, or PKCS#7 certificates in your browser to inspect names, validity dates, fingerprints, key usage, and chain inventory.
Self-Compassion Scale Short Form (SCS-SF) Assessment Assess self-compassion with the 12-item SCS-SF, an overall 1-to-5 mean, reverse-scored items, and pair-level reflection cues.
SemVer Bump Required Checker Check release notes or commit lines for the SemVer bump required, compare the planned version, and spot breaking, feature, fix, or neutral signals.
Semaphore Signals Quiz Practice A-Z semaphore letters from flag-position diagrams, replay seeded drills, and review scores, missed answers, and accuracy charts.
Shape Tracing Sheet Generator Build a printable shape tracing sheet with shape presets, dotted outlines, color prompts, find-shape strips, teacher guide rows, and exports.
Shoe Size Converter Compare foot length or shoe labels across US, UK, EU, JP, MX, CN, KR, and BR shoe sizes with fit allowance and rounding warnings.
Short Dark Triad (SD3) Assessment Score the 27-item Short Dark Triad profile with three 1-to-5 trait means, reverse scoring, reference options, and item-level checks.
Sick, Control, One Stone, Fat, Food (SCOFF) Screen eating-disorder concern with five SCOFF yes/no questions, a 0-to-5 total, 2+ cut-point context, and cue-specific follow-up notes.
Sight Word Practice Sheet Generator Create printable sight-word practice sheets from Dolch, Fry, or custom lists with seeded activities, teacher review cues, and ledger checks.
Significant Figures Calculator Count significant figures from the written number, inspect digit roles, resolve trailing-zero ambiguity, and preview rounded values with errors.
Simple Interest Calculator Calculate flat simple interest from principal, rate, term, and day-count basis, then compare gross, net, withholding, and accrual checkpoints.
Sleep Debt Calculator Calculate recent sleep debt from nightly sleep logs, sleep-need targets, credit rules, and recovery lanes with catch-up timing.
Sleep Hygiene Gap Checker Check sleep-hygiene gaps across caffeine, screens, schedule, naps, room, and light, then rank a small reset queue for retesting.
Sleep Hygiene Path Planner Rank a sleep hygiene path from ISI, PSQI, ESS, DBAS, sleep debt, efficiency, and safety cautions with habit anchors and CBT-I window cues.
Sleep Sound Generator Create a sleep sound mix with noise recipes, safe-volume capping, fade timers, live playback controls, session notes, and charts.
Sleep Window Adjustment Planner Plan weekly sleep window changes from efficiency values, wake time, thresholds, and confirmation weeks, with guidance and a trajectory chart.
Slug Generator Turn titles or batch lines into readable slugs, with ASCII or Unicode handling, smart trimming, duplicate suffixes, and paste checks.
Snapshot Storage Growth Calculator Estimate snapshot reserve growth from changed blocks, retention, reduction, and headroom, then compare current capacity, stress cases, and cost.
Social Interaction Anxiety 6-Item Proxy Screener Review social interaction anxiety with six paraphrased SIAS-6-style items, a 0-to-24 proxy total, 7+ cue context, and item-level practice clues.
Soil Amendment Calculator Plan soil amendments from bed size, pH, organic matter, texture, and product strength, with staged compost, lime, sulfur, gypsum, and cost checks.
Soil Volume Calculator Calculate soil volume for beds and top-ups, then compare bag counts, bulk tickets, delivery weight, wheelbarrow loads, and supplier rounding.
Sports Scoreboard Tracker Keep a multi-sport scoreboard during live play with preset score buttons, fouls, timeouts, possession, event logs, and score-flow review.
Square Footage Calculator Calculate square footage from common shapes, deductions, waste, package coverage, and cost inputs, with takeoff rows and order checks.
Stack Trace Signature Analyzer Find recurring stack trace failures from pasted logs, group noisy traces into fingerprints, and verify frame evidence before merging incidents.
Starfield Screensaver Simulator Tune a starfield screensaver with star count, warp, depth, comet, twinkle, fullscreen preview, and flight metrics for smoother space loops.
Static Route Commands Generator Generate static route commands for Linux, Windows, macOS, and network CLIs from route rows, with validation, rollback modes, and priority review.
Steps to Calories Calculator Estimate active calories from steps with weight, step length, pace, terrain, and load assumptions plus distance, target steps, and uncertainty range.
Stimulus Control Steps Planner Build a stimulus-control sleep plan with leave-bed cues, a fixed wake anchor, fallback activity, adherence guidance, and a response chart.
Strength Standards Calculator Compare a lift 1RM against bodyweight strength standards, estimate maxes from recent sets, and review target deltas and source-backed bands.
Subdivision Flags Quiz Practice subdivision flags across country and region pools, tune choices or timers, and review scores, timeouts, streaks, and missed flags.
Subjective Happiness Scale (SHS) Assessment Check subjective happiness with the 4-item SHS, then review the 1-7 mean, reverse-scored item, strongest support, balance, and prior change.
Subnet Planning Suite Plan IPv4 subnets from a parent CIDR, host demand, reserve, and /31 rules with fit status, address ledgers, and demand packing checks.
Survey Questions Generator Draft survey questions from a research goal, audience, topics, and response mix, then review wording, fatigue, and type balance before fielding.
Switchport Config Generator Generate Cisco, NX-OS, or Arista switchport CLI for access or trunk ranges with VLAN validation, DTP notes, and paste-safety review.
Switzerland Rail Service Tracker Watch Swiss station departures or arrivals, filter by destination or line, and compare planned times, expected times, platforms, delays, and route stops.
Syslog Severity Mix Analyzer Classify syslog or application log lines by severity, compare error+ share against a warning threshold, and rank noisy emitters.
Syslog Storage Calculator Estimate searchable syslog storage from EPS, event size, retention, compression, index overhead, copies, reserve, and disk headroom.
TB/TiB/GB/GiB Converter Convert TB, TiB, GB, and GiB through exact bytes, compare decimal and binary labels, and explain drive-size gaps for reports.
TLS Handshake Load Calculator Estimate TLS handshake CPU load from request rate, connection reuse, full versus resumed handshakes, core budget, surge, and headroom warnings.
TLS Handshake Trace Trace a TLS endpoint by host, URL, port, or SNI and review negotiated protocol, cipher, certificate chain, ALPN, and phase timing.
TLS-RPT Record Validator Validate a TLS-RPT DNS record for a mail domain, review rua destinations and related policy signals, and draft a DNS zone snippet.
TOML Converter Convert TOML into normalized TOML, YAML, JSON, INI, env, and properties output with parse errors, path ledgers, and schema sketches.
Tab-Separated Values (TSV) Converter Convert TSV or delimiter-separated rows into structured tables and exports with header detection, type checks, warnings, and column profiles.
Tabata Workout Timer Build a Tabata workout timer with work and rest presets, exercise rotation, voice or beep cues, work-density checks, and exportable interval logs.
Table Tennis Scoreboard Tracker Track table tennis rallies with game targets, win-by margins, server rotation, deuce status, match score, and point-pressure review.
Tap-Tempo Beats Per Minute (BPM) Calculator Tap a rhythm to estimate quarter-note BPM, translate different pulse values, and review stability, drift, timing, and session records.
Target and Maximum Heart Rate Calculator Calculate target heart-rate bpm from age or known max HR, %Max or Karvonen basis, zone models, method comparisons, and current HR checks.
Tax Refund Estimator Estimate a U.S. federal refund or balance due from income, credits, withholding, and payments with safe-harbor checks and a refund bridge.
Tax Withholding Calculator Plan 2026 U.S. federal paycheck withholding from W-4 fields, paystub totals, remaining checks, and a target refund with worksheet and pace outputs.
Tempo Generator / Metronome Build a metronome practice plan from BPM, meter, swing, accents, and ramp settings with playback, timing rows, and a groove chart.
Ten-Frame Counting Sheet Generator Generate printable ten-frame counting sheets for 0-20 practice, with task modes, answer keys, setup ledgers, and a frame-fill chart for review.
Ten-Item Personality Inventory (TIPI) Assessment Score the 10-item TIPI, review Big Five trait means from reverse-keyed pairs, and compare the profile shape with a radar map and audit table.
Tennis Scoreboard Tracker Track tennis points, games, sets, server calls, tiebreaks, advantage or no-ad scoring, match status, and recent score-flow history.
Terminal Installer Simulator Simulate a browser-local installer session with package-manager presets, seeded replay, network jitter, progress traces, and exportable logs.
Terraform Plan Summary Analyzer Summarize Terraform plan JSON or text before apply, flag destructive changes, drift, output changes, and provider concentration for review.
Terraform Variable Defaults Checker Review Terraform variable defaults, sensitive fallbacks, type mismatches, nullable behavior, and remediation priorities from pasted variable blocks.
Test Case Generator Turn a feature workflow into manual, Gherkin, or automation-ready test cases with traceable IDs, boundary rows, and review checks.
Test Curve Calculator Curve raw test scores with fixed, target-average, scale-to-top, square-root, rescale, or custom rules, then audit averages, band moves, and cap hits.
Test Score Calculator Calculate a test percentage from correct answers, missed answers, or points earned, then compare letter bands, next-grade gaps, and chart rows.
Test Shard Runtime Calculator Estimate CI test shard wall time from suite size, setup cost, split balance, runner efficiency, and concurrency limits with cost and target checks.
Text Diff Comparator Compare original and revised text locally, with file loading, ignore options, unified diff output, change ledgers, warnings, and chart counts.
Text Encryptor & Decryptor Encrypt or decrypt private text in your browser with AES formats, password stretching, integrity checks, portable envelopes, and byte-size evidence.
Text Hash Generator Hash exact UTF-8 text in the browser, compare common digest algorithms, add optional salt rules, and save digest profiles for repeat checks.
Text Sorter Sort pasted text or TXT/CSV lists with natural order, seeded shuffle, cleanup filters, duplicate counts, and paste-ready local output.
Thread Pool Saturation Calculator Check thread pool pressure from active workers, queue depth, arrival rate, and task time, then compare headroom, wait risk, and capacity scenarios.
Tile Calculator Estimate tile pieces, boxes, waste, spares, opening deductions, grout-joint module coverage, and material cost from metric or imperial measurements.
Time Calculator Calculate elapsed durations or shifted clock times with overnight carry, break deductions, rounding, day offsets, and normalized shorthand input.
Tip Calculator Calculate tip amounts, receipt totals, equal payment shares, service charges, selected tip bases, and rounding adjustments for shared bills.
Trace CNAME Alias Chain Trace a hostname's CNAME chain across public DNS views, compare terminal records, and catch suffix mismatches, loops, hop caps, or resolver drift.
Traceroute Hops Analyzer Turn traceroute, tracert, tracepath, or MTR output into hop evidence with latency-step checks, loss interpretation, charts, and escalation notes.
Transformer Calculator Calculate transformer turns ratio, secondary winding turns, full-load current, impedance ratio, and review cues from RMS voltage, VA, and phase inputs.
UCLA Loneliness Scale-20 (ULS-20) Assessment Score the 20-item UCLA loneliness scale, including nine reverse-scored support items, then review the 20-80 total, local lenses, and answer table.
UCLA Loneliness Scale-8 (ULS-8) Assessment Score the ULS-8 loneliness scale with items 3 and 6 reversed, then review the 8-32 total, 0-100 transform, top items, and answer table.
UCLA Loneliness Short Check Check three UCLA loneliness cues, review the 3-9 total with peak cue, profile spread, and answer review without treating it as a diagnosis.
UK Take-Home Pay Calculator Estimate UK take-home pay from salary, PAYE code, region, pension treatment, NI category, and loans with 2026/27 ledgers and warnings.
UPS Runtime Calculator Estimate UPS runtime from load, battery energy, efficiency, battery health, reserve, and derating, then check shutdown margin and rating load.
URL Blacklist Status Lookup Check a URL or host against Safe Browsing, SURBL, and local string signals, then read scope, coverage, and follow-up guidance.
UTM URL Generator Build a campaign URL with required UTM labels, GA4 channel hints, naming checks, existing-parameter handling, and clean review exports.
Unicode Character Lookup Inspect a character, grapheme, code point, or escape, then compare Unicode names, UTF bytes, normalization changes, and hidden-text warnings.
Uniform Resource Locator (URL) Decoder Decode percent-encoded URLs or text, inspect query parameters and character details, and clean trackers or nested escapes before sharing.
Uniform Resource Locator (URL) Encoder Percent-encode URL components, full links, form values, or paths with character maps, strict escapes, and QR-ready handoff output.
Unit Converter Convert measurements across 21 unit categories with base-unit formulas, precision controls, equivalent tables, warnings, and range charts.
Unit Price Calculator Compare package unit prices with multipacks, discounts, fees, and usable-amount assumptions, then see the lower rate and break-even shelf price.
Universally Unique Identifier (UUID) Decoder Decode one UUID into canonical forms, version and variant details, timestamp clues, bit allocation, and routing notes for review.
Universally Unique Identifier (UUID) Generator Generate UUIDs for random, time-ordered, and name-based IDs with namespace validation, canonical formats, URN details, and short history.
Uptime Calculator Calculate uptime budget from an SLA target, reporting window, downtime, maintenance policy, and incidents, then see burn pace and target status.
User Story Generator Draft a user story card from role, goal, benefit, and acceptance checks with criteria rows, boundary coverage, and readiness signals.
VAT Calculator Calculate VAT from a net price, gross total, or VAT-only amount, then compare rounded receipt totals, rate checks, and tax share.
VLAN Capacity Calculator Plan VLAN ID capacity from ranges, reservations, existing use, requested segments, and subnet host fit, with allocation warnings.
VLAN Config Consistency Checker Check VLAN lists and switch evidence for trunk drift, native VLAN mismatches, reserved IDs, inactive VLANs, and VLAN 1 policy findings.
VLAN Migration Planner Plan VLAN port moves from pasted rows, split work into waves, flag native VLAN and timing risks, and export a cutover runbook.
VM Migration Time Calculator Estimate VM migration time from memory, disk, bandwidth, dirty rate, and cutover targets, with convergence and downtime checks.
VPN Tunnel Capacity Calculator Estimate VPN tunnel user capacity from line rate, packet overhead, demand, MTU, and gateway caps, with payload efficiency and load warnings.
Virtual Machine Storage Calculator Size VM datastore capacity from VM count, disk use, growth, snapshots, swap, reserves, and protection policy, with raw capacity and runway checks.
Virtualization Host Capacity Calculator Estimate safe VM capacity from host CPU, memory, failover, reserves, and large-VM placement, with runway and host ladder checks.
Visual IPv4 Subnet Calculator / Splitter Plan IPv4 subnet layouts visually by splitting and joining leaf blocks, then review network fields, allocation checks, and size maps.
Visual Schedule Cards Generator Build printable visual schedule cards from routine rows, picture cues, and optional times with print checks, a card ledger, and a flow map.
Vocabulary Matching Sheet Generator Create vocabulary matching worksheets from term-definition pairs with seeded shuffling, distractors, answer keys, print checks, and parse notes.
Volleyball Scoreboard Tracker Track volleyball rallies with set targets, serve changes, timeout counts, set commits, match-point cues, and rally momentum review.
Vulnerability Remediation SLA Calculator Turn vulnerability CSV rows into SLA due dates, breach status, priority queues, and owner-ready remediation notes from your policy windows.
WAN Latency Calculator Estimate WAN latency from route distance, fiber speed, hops, queues, and jitter, then compare target RTT, distance headroom, and scenario gains.
WHO-5 Well-Being Assessment Check WHO-5 well-being over the last two weeks, review raw and percent scores, the published follow-up cue, item pattern, and answer table.
WHOIS / RDAP Lookup Check domain registration with RDAP-first lookup, WHOIS fallback, lifecycle dates, nameservers, status, contacts, registrar details, and raw JSON.
WPDS Historical Proxy Assessment Review a 24-item WPDS historical proxy, count flagged cues across five lanes, and compare the signal map, active items, and answer review.
WWN and NAA Identifier Lookup Extract WWN or NAA identifiers from SAN text, decode NAA family and company ID hints, rank candidates, and plan the next checks.
Waist to Height Ratio Calculator Calculate waist-to-height ratio from waist and height, then compare half-height, NICE risk bands, goal waist, BMI cautions, and pace checks.
Waist to Hip Ratio Calculator Calculate waist-to-hip ratio from waist and hip measurements, then compare sex-specific bands, abdominal screen cutoffs, and tape uncertainty.
Wallpaper Calculator Estimate wallpaper rolls from wall size and roll labels, with repeat matching, opening deductions, waste checks, spare rolls, and cost totals.
Water Intake Calculator Plan a daily beverage target from body weight, climate, exercise, and sweat data, with schedule rows and flags for high targets, caffeine, or fluid limits.
Web Server Detector Detect visible web server or edge software from HTTP headers, redirects, confidence scores, candidate clues, and follow-up playbook actions.
Weekly Workout Schedule Planner Plan a weekly workout schedule from your goal, training days, equipment, and recovery needs, with audit checks and calendar-ready sessions.
Weight Loss Calculator Estimate a weight-change calorie runway from body stats, activity, goal weight, and schedule, with floor limits, pace warnings, BMI context, and milestones.
Weight-for-Age Percentile Calculator Plot a child's weight-for-age percentile and z-score using WHO or CDC references, with corrected-age handling, alert bands, and growth-lane targets.
Weight-for-Length Percentile Calculator Compare weight-for-length percentile against WHO and CDC references, with recumbent-length adjustment, source-fit notes, alert bands, and lane targets.
Weighted Grade Calculator Calculate weighted course grades from percentage weights or points, including dropped rows, upcoming work, target averages, grade bands, and weight audits.
Weighted Rubric Score Calculator Calculate a weighted rubric score from criteria, weights, grade bands, and point totals, with weight-audit notes and contribution checks.
Wget Command Generator Build a wget command for downloads, API fetches, FTP pulls, or site mirrors with shell-aware quoting, imports, and risky-option warnings.
What Is My Browser Check your current browser, storage, graphics, privacy, and compatibility signals so support teams can reproduce issues without guesswork.
What Is My Internet Protocol (IP) Address? Check your public IP address, compare IPv4 and IPv6 visibility, and review ASN, location, reverse-DNS, and source agreement clues.
What Is My Screen Resolution Check your screen, viewport, DPR, breakpoint lane, and capture size with density estimates when you know the display diagonal.
Wi-Fi Channel Plan Calculator Plan Wi-Fi channel assignments by band, width, domain, DFS policy, and AP layout, with reuse pressure, pool warnings, and charts.
Wire Gauge Calculator Calculate an AWG wire size from current, run length, voltage, material, and drop limit, with ampacity checks and voltage-drop maps.
WireGuard Config Generator Generate WireGuard server and client configs from peers, routes, DNS, and keys with CIDR checks, placeholder warnings, and review tables.
Word Counter Count words in drafts and transcripts with local totals, readability scores, repeated phrases, frequency charts, and exportable evidence.
Word Scramble Generator Create a word scramble worksheet from words and hints with repeatable seeds, difficulty modes, word banks, answer keys, and source audits.
Word Search Generator Generate a word search puzzle from A-Z words with seeded grids, direction controls, play checking, answer keys, and placement reports.
Work and Power Calculator Calculate mechanical work and average power from force, distance, angle, and time, with sign checks, unit conversions, and an angle curve.
Workout Rounds Tracker Score workout rounds from a pasted or uploaded log, review AMRAP, for-time, interval, pace, RPE, and rep-audit flags, then export the report.
Workout Volume Calculator Calculate workout volume from pasted training rows, with bodyweight load estimates, hard-set ranges, muscle-group balance, and exports.
World Health Organization Quality of Life (WHOQOL-BREF) Assess WHOQOL-BREF quality of life across four domains and two general items, with 0-100 scores, focus cues, charts, and answer exports.
XLSX to CSV Converter Convert one Excel workbook sheet to CSV in your browser with sheet selection, delimiter choices, formula review, hidden-row checks, and downloads.
YAML Converter Convert YAML into JSON, env, INI, properties, and path tables while checking document count, schema types, and scalar-only exports.
YAML Formatter Format YAML for review or diff handoffs, catching comments, directives, tabs, aliases, path changes, and parse errors before applying output.
YAML Validator Validate YAML text or files in your browser, compare schema profiles, catch duplicate keys and parser errors, and inspect paths plus parsed JSON.
ZFS Capacity Calculator Calculate ZFS planned usable capacity from vdev layout, disk size, slop, reserve, RAID-Z padding, and target-fit alternatives.
cURL Command Generator Build a cURL command from method, URL, headers, auth, body, and transfer flags, with shell-aware quoting, import parsing, and warnings.
chmod Calculator Build chmod modes and commands from octal bits, symbolic edits, presets, umask rules, and target type, with clear exposure checks.
dnsmasq DHCP Config Generator Build a dnsmasq DHCP scope config with pool, router, DNS, reservations, PXE/TFTP options, and validation notes before rollout.
iptables Rule Generator Generate an iptables or ip6tables command from CIDRs, ports, chains, backend profile, and strict review checks before applying firewall changes.
npm Audit Summary Analyzer Turn npm audit JSON or terminal text into a release-gate summary with high-plus counts, fix pressure, package queues, and local exports.
systemd Unit Generator Build a systemd service unit from command, user, restart, dependency, and hardening choices with directive review and install checks.

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