Simplified Tools

Tools

398 tools

List of available tools
.htaccess Generator Generate Apache .htaccess rules online with presets for redirects, headers, caching, access control, and exports for safer staging review and deployment prep.
16-Factor Personality Profile Assessment Assess personality patterns online with a 163-item IPIP-based 16-factor proxy, compare high and low factor leans, and prepare coaching notes.
ACME DNS Challenge Readiness Check Check online ACME DNS-01 readiness for TXT tokens, CNAME or NS delegation, resolver drift, client profile fit, and retry timing before issuance.
ACS Mini Attachment Style Snapshot (Proxy) Assess online adult attachment style signals across secure, avoidant, ambivalent, and disorganized patterns, helping prepare careful reflection.
Ad Network Detector Check ad network signals online from a public URL, compare page evidence with ads.txt sellers, and flag supply-path gaps for faster monetization reviews.
Adult ADHD Self-Report Scale (ASRS v1.1) 6-Question Screener Screen adult ADHD symptoms online with the 6-item ASRS v1.1, compare classic and 24-point cutoffs, and prepare a clearer follow-up conversation.
Age Calculator Calculate age online from birth and as-of dates, compare calendar and decimal time, and track birthdays and milestones for planning and date-based records.
Alarm Clock Set an online alarm clock with countdown tracking, optional daily repeat, label notes, and audible trigger handling in-browser.
Alcohol Use Disorders Identification Test (AUDIT-10) Check alcohol risk online with the full AUDIT-10, review WHO follow-up lanes and key harm cues, and prepare for a clearer self-review or clinic visit.
Alcohol Use Disorders Identification Test (AUDIT-C) Screen alcohol use online with AUDIT-C, compare common and VA reference cutoffs, and export a clear follow-up summary for review or clinical discussion.
Alternative DCV Checker Check alternative DCV online across DNS, HTTP, and HTTPS with CSR-aware presets so you can catch token or transport problems before certificate issuance.
Anger & Irritability Proxy Check Assess online anger and irritability load across triggers, spillover, reaction heat, and recovery friction, helping plan calmer follow-up.
Application Programming Interface (API) Testing Tool Test HTTP APIs online with browser-side recipes, cURL parsing, traces, previews, and saved request history for faster debugging sessions.
Aquarium Screensaver Simulator Simulate an online aquarium screensaver with theme, motion, and ambience controls, then capture tank metrics and runtime signals for display tuning.
AsciiMath Editor Write AsciiMath expressions online, preview formatted equations, copy MathML or LaTeX, and export clean graphics for notes, worksheets, slides, and technical docs.
Autonomous System Number (ASN) Information Lookup Look up ASN records online to identify holder, routed prefixes, neighbouring ASNs, and public registry or peering details for incident and routing triage.
BFI-2-S Aligned Proxy Assessment Compare online Big Five short-form proxy traits across five domains and 15 facets for quick reflection on current personality patterns.
BFI-44 Style Big Five Proxy Assessment Compare online BFI-44-style Big Five proxy scores, cluster support, trait spread, and answer rows for personal, team, work, or study reflection planning.
BIMI Validation Report Validate online BIMI records with DMARC policy, logo fetch, certificate evidence, and resolver checks for brand email readiness reviews.
BIS/BAS Behavioral Style Proxy Assessment Check online BIS/BAS proxy scores across inhibition, drive, reward, and fun seeking, then compare approach style, caution signals, and decision pacing.
BMI-for-Age Percentile Calculator Calculate pediatric BMI-for-age online with CDC and WHO references, percentiles, z-scores, and % of P95 for clearer pediatric growth screening review.
BMR & TDEE Calculator Calculate BMR and TDEE online using activity, body-fat, formula, and macro inputs to compare maintenance, fat-loss, and gain calorie targets.
BRI-12 Resilience Proxy Assessment Assess online resilience base across reset, adapt, reach, and steady lanes with proxy scoring, recheck context, and practical recovery planning.
Backup Capacity Calculator Calculate online backup capacity from retention, change rate, growth, copy tiers, and reserves to size repository storage before procurement.
Backup Rotation Planner Plan backup rotation online with daily, weekly, monthly, and yearly retention assumptions to size storage, compare policies, and judge recovery horizon.
Base64 Encoder and Decoder Convert Base64 payloads online with standard and URL-safe encoding, decoding, padding repair, byte inspection, and Data URL output for payload debugging.
Beck Anxiety Inventory (BAI) Assessment Assess anxiety symptoms online with the Beck Anxiety Inventory, review score bands and strongest symptom items, and compare with an earlier check-in.
Beck Depression Inventory-II (BDI-II) Assess depression symptoms online with the BDI-II, review score bands and Item 9 follow-up cues, and save structured records for visits or repeat check-ins.
Beck Hopelessness Scale (BHS) Assessment Assess hopelessness online with the Beck Hopelessness Scale, review score bands and item patterns, and prepare a more grounded follow-up discussion.
Bicycle Tire Pressure Calculator Calculate bicycle tire pressure online from system weight, tire width, rim width, and ride conditions to get front and rear pump targets with tuning ranges.
Big Five 10-Item Proxy Assessment Assess online Big Five 10-item proxy traits with direct and reverse-keyed scoring, helping review a quick five-domain personality snapshot.
Big Five Aspect Scales (BFAS) Assessment Assess online BFAS aspect profile across ten Big Five aspects with keyed 0-4 scoring, helping spot broad traits and within-domain splits.
Big Five Assessment Measure online Big Five IPIP marker scores with keyed means, spread, item range, and answer review to build a practical personality snapshot with notes.
Big Five Inventory-2 Style Proxy Assessment Map online Big Five proxy traits across 60 prompts, five domains, and 15 facets with reverse-keyed scoring for deeper personality reflection.
Binary Decimal Hex Converter Convert online binary, decimal, octal, and hexadecimal integers with register widths, byte order, two's complement checks, byte streams, and bit fields.
Bingo Card Generator Generate bingo cards online from custom prompt lists with seeded shuffles, flexible grids, and printable PDF, PNG, or DOCX exports for classes or events.
Birthday Calculator Calculate birthday timing online from a birth date and reference date, then track the next birthday, milestone ages, and round-number life markers for planning.
Blacklist Checker (DNSBL/RBL) Check DNSBL status online for a host or IP across selected mail blocklists, with TXT evidence, resolver context, and shareable exports for mail triage.
Body Composition Calculator Calculate body composition online with Navy, Relative Fat Mass, and BMI-age estimates, then compare waist risk, lean mass, and target checkpoints.
Body Mass Index (BMI) Calculator Calculate BMI online from height and weight, add waist-to-height screening, compare adult WHO, Asia-Pacific, and CDC bands, and set weight targets.
Body Surface Area Calculator Calculate body surface area online across five formulas, compare weight-basis and cap scenarios, and check reference-body context before dose review.
Braille Alphabet Quiz Practice braille letters and numbers online with seeded repeatable quizzes, local scoring, and answer review for study drills and classroom practice.
Breathing Pacer Guide breathing online with adjustable inhale, hold, and exhale timing, live pacing cues, and local exports for steadier daily breathwork practice.
Brief Resilience Scale (BRS) Assessment Assess resilience online with the Brief Resilience Scale, score six bounce-back items, and track recovery strengths, weak spots, and follow-up cues.
Brief Resilient Coping Scale (BRCS) Assessment Assess resilient coping online with the Brief Resilient Coping Scale, compare stronger and weaker supports, and plan a more consistent coping recheck.
Brief Rumination Response Scale Assess online rumination patterns with a 10-item brooding and reflection scale, factor split, response anchors, and repeat-check guidance.
Brief Self-Control Scale (BSCS) Assessment Assess self-control online with the Brief Self-Control Scale, review your total, lane map, and change vs prior, and plan your next focused retest.
CAA Validation Report Validate the effective CAA policy for a hostname with parent-chain discovery, wildcard issuance perspective, and issuance or reporting notes.
CBT-I Sleep Diary Tracker Track CBT-I sleep diary entries online, measure sleep efficiency and wake drift trends, and export structured summaries for insomnia follow-up.
CBT-I Sleep Window Calculator Calculate online CBT-I sleep windows from baseline sleep time and a fixed wake target, then compare projected efficiency, bedtime shifts, and weekly review steps.
CD-RISC-10 Resilience Proxy Assessment Assess online CD-RISC-10-style resilience proxy scores, support domains, change context, and response-ledger cues for practical pressure review.
CPS Test Measure click speed online over 5 to 30 second runs, compare CPS against a goal pace, and track a local best score for repeatable practice sessions.
Caffeine Content Calculator Estimate caffeine intake online from coffee, tea, soda, or custom servings, then compare session totals, timing, and daily guidance before another drink.
Caffeine Cut-off Calculator Calculate online caffeine cut-off times from dose, bedtime, half-life, and threshold settings so you can plan late-day intake with less sleep risk.
Calories Burned Calculator Calculate calorie burn online from weight, MET-based activity, duration, and target goals so you can compare session effort and plan workout time.
Car Loan Calculator Calculate car loan costs online with down payment, trade-in, sales tax, fees, APR, and extra payments to compare monthly cost, payoff time, and total interest.
Car Tire Pressure Calculator Calculate car tire pressure online from placard values or class presets, then set front and rear cold targets for load changes, weather, and safer trip prep.
Center for Epidemiologic Studies Depression (CES-D-20) Assess depressive symptoms online with the CES-D-20, compare common screening cutoffs, and organize past-week item patterns for clearer follow-up.
Ceph Storage Capacity Calculator Estimate Ceph storage capacity online across replication and erasure-coded layouts with headroom, spread, and PG planning for safer cluster sizing.
Certificate Signing Request (CSR) Decoder Decode certificate signing requests online to inspect subject names, SAN entries, key details, fingerprints, and warning cues before certificate issuance.
Certificate Signing Request (CSR) Generator Generate online certificate signing requests with new RSA keys, SAN and usage controls, plus downloadable PEM output for TLS certificate enrollment.
Certificate Transparency Checker Inspect certificate transparency online from a PEM or DER certificate, compare logged issuances and DNS coverage, and flag revocation or hostname drift.
Click Counter Track repeated events online with a click counter that records step size, session peaks, and recent actions so you can report cleaner tallies with less drift.
Coffee Brew Planner Plan coffee brews online with method presets, ratio and yield math, timed pour schedules, and exportable brew maps for repeatable home or cafe service.
Coffee Strength Calculator Analyze coffee strength online from TDS or Brix readings, extraction yield, and brew ratios to compare brew targets and plan the next dial-in change.
Coffee to Water Ratio Calculator Calculate coffee-to-water ratios online with method presets, bloom and absorption planning, and yield estimates for more repeatable home brewing.
Cognitive Reflection Test (CRT-3) Assessment Assess cognitive reflection online with a CRT-3 score that separates lure answers from other misses and gives clearer coaching for teaching or self-review.
Cognitive Reflection Test (CRT-7) Assessment Assess cognitive reflection online with a guided CRT-7, compare classic and extension items, and review lure patterns for clearer teaching or self-review debriefs.
Coin Flipper Flip a coin online with adjustable bias, seeded replay, batch runs, and exportable results to settle quick choices or illustrate probability patterns.
College GPA Calculator Calculate college GPA online from current classes, prior credits, and repeat or pass/fail rules to project term results and cumulative standing targets.
Comma-Separated Values (CSV) Converter Convert CSV tables online, detect headers and column types, and export JSON, SQL, XML, Markdown, TSV, DOCX, or XLSX for cleaner imports and sharing.
Compost Carbon-to-Nitrogen (C:N) Ratio Calculator Calculate compost C:N balance online with moisture-adjusted material weights, repair suggestions, and exportable mix summaries for steadier pile planning.
Compound Interest Calculator Calculate compound interest online with recurring deposits, taxes, fees, inflation-adjusted balances, and target tracking for long-term savings planning.
Copenhagen Burnout Inventory (CBI) Assessment Check burnout patterns online with the Copenhagen Burnout Inventory and compare personal, work, and people-facing scores for clearer follow-up planning.
Corrected Age (Preterm) Calculator Calculate preterm corrected age online from birth dates or gestational age at birth, then map milestone windows and handoff notes for clearer follow-up reviews.
Countdown Timer Track countdown timers online, convert targets across time zones, add buffers and reminders, keep your data local for launches, trips, and deadlines.
Country Flags Quiz Practice country flags online with world or regional quizzes, reusable seeds, and result exports to review mistakes and strengthen geography recall.
Credit Card Calculator Calculate credit card payoff online with APR, promo periods, payments, new charges, and lump sums to plan debt-free dates and lower interest costs.
Credit Card Number Generator Generate credit card test numbers online with network presets, custom BIN rules, replayable batches, and optional CVV or expiry fields for sandbox QA.
Credit Card Number Validator Validate credit card numbers online with checksum, issuer-aware length review, batch checks, and rule traces to catch structural entry errors early.
Crontab Generator Generate online crontab entries from five-field schedules or supported @macros, then check readable timing, warnings, and copy-ready output for cron setup.
Crossword Puzzle Generator Generate crossword puzzles online from your own answer-and-clue list, compare best attempts, and export printable grids, clue sheets, or JSON for classes and events.
Current Time Check current time online in local or UTC mode with Unix seconds, milliseconds, and snapshot-ready exports for handoffs, audits, or status notes.
Cut Down, Annoyed, Guilty, Eye-opener (CAGE) Assessment Check alcohol dependence cues online with the CAGE questionnaire, compare multiple cutoff rules, and turn four answers into a clearer follow-up plan.
DANE TLSA Validation Report Report online DANE TLSA validation for SMTP, HTTPS, and custom TLS services with MX routes, AD checks, parser notes, digest matching, and exports.
DARVO Pattern Reflection Review online DARVO pattern cues across deny, attack, and role reversal, then organize one confrontation into clearer notes for support or documentation.
DERS-18 Emotion Regulation Proxy Check Check online emotion regulation strain across six DERS-style domains with proxy scoring, bands, item review, and priority cues for support planning.
DKIM DNS Record Generator Generate online DKIM DNS records from selector, domain, key type, public key, and rollout flags for safer TXT publishing and verification.
DKIM Validation Report Validate a DKIM selector with tag parsing, selector-host resolution, key-type classification, and key-strength notes.
DMARC DNS Record Generator Generate online DMARC TXT records with rollout policies, alignment tags, report URIs, DNS zone labels, receiver authorization, and deployment checks.
DMARC Validation Report Validate a DMARC policy record with tag parsing, enforcement and alignment posture, reporting destinations, and rollout notes.
DNS Configuration Report Generate a domain DNS configuration report with core record inventory, mail-auth coverage notes, TTL spread context, and resolver timing snapshots.
DNS Delegation Trace Analyzer Trace DNS delegation online from zone cut to final answer, compare resolver views, and flag DNSSEC or negative-cache clues before rechecking.
DNS Denial Proof Report Analyze online DNS denial evidence from NXDOMAIN or NODATA replies, NSEC or NSEC3 records, SOA retry timing, and CD-bypass resolver views.
DNS Glue & Delegation Check Check DNS glue and delegation online, compare Cloudflare, Google, and Quad9 views, spot nameserver gaps, and export evidence for DNS repair tickets.
DNS Propagation Checker Check DNS propagation online across public resolvers, compare answers, TTL, DNSSEC flags, and latency to judge DNS cutovers before traffic shifts.
DNS Record Enumerator Enumerate DNS records online across public resolvers with PTR, DNSSEC, mail-policy, and posture checks to spot misconfigurations during authorized reviews.
DNS Record Lookup Lookup DNS records online for a domain or IP, inspect TTL and DNSSEC response signals, and export clean tables or charts for troubleshooting.
DNS Wildcard Behavior Check Check online DNS wildcard behavior with random leaf, deep, boundary, and resolver probes to confirm inherited answers before zone changes.
DNSSEC Validator Validate DNSSEC records online to inspect keys, signatures, denial indicators, and resolver AD responses so you can spot trust-path issues quickly.
Data Transfer Rate Converter Convert online data transfer rates across bit and byte units, overhead profiles, ETA checkpoints, link tiers, and maintenance windows for capacity planning.
Date & Time Difference Calculator Calculate datetime differences online with timezone-aware elapsed totals, workday and business-hour breakdowns, and checkpoint exports for scheduling handoffs.
Debt Repayment Calculator Compare debt repayment online across avalanche, snowball, and extra-payment scenarios to estimate payoff dates, interest costs, and faster debt-free plans.
Depression Anxiety Stress Scales (DASS-21) Assessment Assess DASS-21 responses online, score depression, anxiety, and stress subscales, and review cutoff bands with top item drivers for clearer follow-up.
Depression Anxiety Stress Scales (DASS-42) Assessment Assess DASS-42 symptoms online with separate depression, anxiety, and stress subscale scores, compare past raw totals, and prepare clearer follow-up notes.
Dice Roller Roll dice notation online with keep/drop rules, advantage, exploding and reroll options, seeded or crypto RNG, and simulation stats for game checks.
Diceware Passphrase Generator Generate online Diceware passphrases from EFF long-list words, secure browser rolls, manual dice keys, and policy checks for safer account logins.
Discount Calculator Calculate discount totals online with stacked markdowns, coupons, tax, shipping, and target checks so you can compare real checkout savings before buying.
DoH Query Packet Crafter Craft online DNS-over-HTTPS query packets with wireformat hex, EDNS options, GET or POST replay commands, and live resolver response checks.
Dysfunctional Beliefs and Attitudes About Sleep (DBAS-16) Assessment Assess sleep beliefs online with a DBAS-16-style mean score, lens review map, and ranked item queue so CBT-I follow-up starts with the strongest beliefs.
ECR-R-style Attachment Profile Proxy Assess romantic attachment online with a 36-item ECR-R-style proxy, compare anxiety and avoidance means, and spot a useful reflection lens.
EDNS Client Subnet (ECS) Tester Check EDNS Client Subnet behavior online by comparing DNS answers, echoed scope, TTL drift, and resolver baselines for routing and cache debugging.
EDNS Options Inspector Inspect online EDNS options through DoH wireformat requests for OPT records, DNSSEC flags, NSID, padding, ECS behavior, and replay diagnostics.
ENV Converter Convert .env files online into YAML, JSON, INI, and Java properties while auditing duplicates, interpolation, and secret-like values before release.
EPQ-R Style PEN Personality Proxy Assessment Assess online EPQ-R-style PEN proxy scores for tough-mindedness, extraversion, reactivity, and image management to guide non-clinical reflection.
EPW-Style Daytime Sleepiness Proxy Assess online daytime sleepiness proxy scores across eight low-stimulation situations, with safety cues and context lanes for follow-up planning.
EQ-5D-5L Health Status Survey Assess health status online with EQ-5D-5L, compare US 2019 and England 2018 utility references, and export a structured report for follow-up visits.
Edinburgh Postnatal Depression Scale (EPDS) Assessment Assess perinatal mood online with the EPDS, flag Question 10, compare 10-12 and 13+ follow-up ranges, and keep a clearer record for repeat checks or visits.
Effective Interest Rate Calculator Calculate effective interest rates online from nominal quotes, compounding schedules, inflation checks, and holding periods to compare yield offers fairly.
Electric Vehicle (EV) Charging Time Calculator Estimate EV charging time online from battery size, SOC targets, charger limits, taper, cost, and added range to plan home charging or trip stops.
Email Header Analyzer Analyze email headers online to trace relay hops, authentication, alignment, and delay clues before deciding whether a suspicious message needs deeper review.
Endurance Fuel Planner Plan endurance fueling online with carb, fluid, and sodium targets for rides and runs so you can turn race nutrition goals into timed intake windows.
Epoch Time Converter Convert online epoch timestamps into UTC, fixed-offset, or named-zone date-times with ISO, Julian day, and export-ready details for logs and scheduling.
Epworth Sleepiness Scale (ESS) Assessment Assess daytime sleepiness online with an ESS score, review normal and excessive bands, flag higher-risk situations, and export follow-up records.
Espresso Shot Planner Plan espresso shots online with linked dose, yield, time, flow, and pressure targets, then log pulls to spot drift and repeat better shots.
Exchangeable Image File Format (EXIF) Viewer & Editor Edit image EXIF metadata online by reviewing camera, timestamp, and GPS tags, then export a JPEG, PNG, or WebP copy for safer sharing or recordkeeping.
Extensible Markup Language (XML) Converter Convert XML online into JSON, JSONL, CSV, TSV, HTML, Markdown, SQL, DOCX, and XLSX while exposing record paths and schema details for clean data handoffs.
Fat-Free Mass Index (FFMI) Calculator Calculate FFMI online from weight, height, body fat, or lean mass, compare benchmark bands, and translate physique goals into target lean mass and body weight.
Fertilizer Solution Mix Calculator Calculate fertilizer solution mixes online for hydroponic or fertigation tanks by matching N-P-K targets, stock ratios, and weighed recipe amounts.
File Encryptor & Decryptor Encrypt or decrypt files online with AES-GCM, compatibility cipher modes, Argon2id or PBKDF2 key derivation, and recovery metadata for safer file sharing.
File Hash Generator Generate online file hashes with MD5, SHA-1, SHA-2, SHA-3, or RIPEMD-160 and compare exact digests to verify downloads, backups, archives, and handoffs.
File Transfer Time Calculator Calculate online file transfer time from size, bandwidth, latency, window, and loss assumptions so you can plan uploads, backups, and cutovers reliably.
File and Disk Size Converter Convert online file and disk sizes across decimal, IEC, legacy labels, reserves, and allocation rounding to plan storage purchases and capacity fit.
Filebeat Grok Pattern Generator Generate Filebeat Grok patterns online from sample log lines, map ECS-style fields, and export ingest pipeline JSON for faster parser review and deployment.
Final Grade Calculator Calculate final exam targets online from current grade, course weights, curve, and buffer settings so you can judge whether a desired final result is realistic.
Finland AIS Vessel Tracker Track Finnish AIS vessels online by name, MMSI, IMO, or callsign, then filter nearby moving traffic and export position snapshots for harbor and dispatch checks.
Fireplace Screensaver Simulator Simulate a fireplace screensaver online with adjustable flame, embers, smoke, and runtime metrics to tune ambience for displays or quiet workspaces.
Fixed Deposit Calculator Calculate fixed deposit maturity value online with APR or APY, tax, inflation, payout, and coverage checks to compare real yield and term choices.
Flight Delay Tracker Track flight delays online with scheduled, estimated, and actual timing, compare route matches, and export status details for pickups or connections.
Flight Emissions Tracker Estimate flight emissions online with leg-by-leg CO2 and CO2e totals, cabin and trip adjustments, SAF and RF options, and exports for travel planning.
Flight Tracker Track flights online by callsign or ICAO hex, compare live status, map the latest position, and export match details for quick spotting checks.
Forbearance 8 Assessment Assess forbearance online with eight 1-to-6 items, compare fault release and viewpoint room, and identify relationship friction to discuss.
Free Space Path-loss & RSSI Calculator Calculate RF path loss online from frequency, distance, gains, and planning thresholds to estimate receive power, reserve margin, and workable link range.
Friel Heart Rate Zone Calculator Calculate Friel heart rate zones online from threshold heart rate or test averages to pace runs, rides, and structured time-in-zone workouts.
GHS Hazard Pictograms Quiz Practice GHS hazard pictogram recognition online with seeded question sets, score review, and missed-answer checks for safer training prep.
GPA Calculator Calculate GPA online from pasted course rows with repeat, pass-fail, and weighting policies to compare semester scenarios, lift priorities, and target gaps.
GPA to Letter Grade Converter Convert GPA online into an estimated letter grade with scale-aware normalization and rounding controls, so transcript scores are easier to compare.
GST Calculator Calculate GST online from taxable, total, or tax-only amounts, compare invoice and per-unit rounding, and export receipt, chart, or JSON results.
Garden Bed Planner Plan raised beds online with crop spacing, row layouts, soil and mulch estimates, and harvest timing so you can map a realistic bed-by-bed planting plan.
General Self-Efficacy Assessment Assess online general self-efficacy with the 10-item GSE scale, reference anchors, lane averages, and next steps for confidence planning.
Generalized Anxiety Disorder (GAD-7) Assessment Assess anxiety symptoms online with the GAD-7, score the standard 0 to 21 total, compare a prior result, and export a follow-up record for review.
Geriatric Depression Scale (GDS-15) Assessment Assess older-adult mood online with the GDS-15, keeping item-level answers, cutoff context, and score-change cues together for clearer follow-up.
GlusterFS Volume Capacity Calculator Calculate GlusterFS volume capacity online across distributed, replicated, arbiter, and dispersed layouts to plan safer fill targets, set geometry, and recovery headroom.
Good VO2 Max by Age Lookup Lookup online good VO2 max ranges by age and reference sex, classify an optional measured value, and compare fitness bands for training context.
Grade Calculator Calculate course grades online from points, percentages, or letter marks with weights, drop rules, and target runways so you can plan the scores you still need.
Gratification Delay Timer Practice delayed gratification online with a timer, urge-response prompts, streak tracking, and coaching cues that make waiting for a chosen reward easier.
Grind Size Chooser Choose coffee grind size online for espresso, pour-over, French press, and cold brew using target time, taste cues, and grinder calibration for steadier brews.
Grit-S Assessment Assess grit online with the 8-item Grit-S, compare overall, consistency, and perseverance scores, and spot follow-through patterns for smarter rechecks.
Growth Chart Report Generator Generate pediatric growth reports online from serial visits, estimate percentile trends and screening flags, and prepare follow-up or handoff summaries.
Growth Percentile Trend Calculator Track pediatric growth percentiles online across serial visits, corrected-age windows, and WHO-to-CDC handoffs to flag drift and guide follow-up.
Growth Screening Flag Checker Check pediatric growth trends online for corrected-age routing, adiposity screens, family-target context, and height-velocity red flags to guide follow-up planning.
Growth Velocity Calculator Calculate child growth velocity online from serial height or weight visits to compare interval pace, flag sustained drift, and guide follow-up review.
Growth Z-Score Calculator Calculate online pediatric growth z-scores and percentiles on WHO or CDC references, with corrected-age context and threshold lanes for clearer follow-up.
HCL Converter Convert HCL online into YAML, JSON, INI, env, and properties views while inspecting block paths, types, and schema coverage before deployment review.
HEXACO Personality Inventory (HEXACO-60) Assessment Assess HEXACO-60 personality traits online with six factor scores, facet snapshots, and reference-sample comparisons for clearer self-reflection and planning.
HPI-Style Bright-Side Personality Proxy Assessment Assess workstyle personality online with a 70-item IPIP-HPI proxy, compare seven bright-side means, and plan development conversations.
HTML Entity Lookup Look up online HTML entities, symbols, names, and code points with safe paste targets for markup, attributes, code, and content review notes.
Hash Type Identifier Check hash strings online to spot likely digest, password-hash, and LDAP token formats from pasted values so you can route them to the right verifier.
Heart Rate (HR) Zones Calculator Calculate heart rate zones online with age, max HR, or reserve methods, compare formulas, and plan time in zone for clearer workout pacing.
Heart Rate Variability (HRV) Resonance Finder Estimate HRV resonance breathing rate online from age, height, resting pulse, and pacing tweaks to build a practical breathing window and exportable plan.
Height-for-Age Percentile Calculator Calculate height-for-age percentile online from sex, age, and measured stature, compare WHO-style and CDC-style views, and spot growth-screen thresholds.
High School GPA Calculator Calculate high school GPA online from transcript rows with weighted and unweighted totals, course audits, and target-gap planning for transcript checks.
Hypertext Transfer Protocol (HTTP) Header Checker Check HTTP response headers online with hardening grades, redirect-path evidence, and cache, CORS, cookie, and isolation findings for reviews and triage.
Hypertext Transfer Protocol (HTTP) Redirect Checker Check HTTP redirects online hop by hop with method, timeout, TLS, and user-agent controls to confirm the final destination, delay, and HSTS status.
INI Converter Convert INI settings online into YAML, JSON, env, properties, and normalized INI output for cleaner audits, migrations, and configuration handoffs.
IOPS / MBps / GB-per-day Converter Convert online IOPS, throughput, and GB per day with block size, active hours, platform caps, and reserve checks for storage sizing decisions.
IPIP Personality Inventory (IPIP-NEO-120) Assessment Assess online Big Five traits with the IPIP-NEO-120, inspect 30 facet scores and keyed responses, and export a detailed profile for reflection.
IPIP Personality Inventory (IPIP-NEO-60) Assessment Assess personality traits online with the IPIP-NEO-60, compare Big Five domains and facet signals, and export a short-form profile for later review.
IPv4 Allocation Planner Plan IPv4 subnet allocations online from a parent CIDR block, size each segment by host demand, and export clear address plans for rollout worksheets.
IPv6 Address Compressor / Expander Convert IPv6 addresses online into compressed or expanded forms, inspect hextets, prefixes, and reverse DNS output, and clean up network documentation.
IPv6 Address and Subnet Calculator Calculate online IPv6 subnet boundaries, reverse-DNS zones, special-range warnings, and target prefixes for clean network allocation plans.
Ideal Weight Calculator Calculate ideal weight online with Devine, Hamwi, Robinson, and Miller formulas, BMI corridor checks, and current-weight context for adult planning.
Image Compressor Compress images online with resize, format, and EXIF controls, then compare before-and-after results for smaller uploads, cleaner sharing, and better privacy.
Image Cropper Crop images online to fixed ratios or pixel sizes, export PNG, JPEG, or WebP files, and prepare clean assets for avatars, banners, and share cards.
Image Resizer Resize images online with pixel, percentage, fit, letterbox, or cover controls, then tune format and quality for cleaner downloads at the exact target size.
Image to Base64 Encoder Encode online images to Base64, data URIs, embed snippets, SVG alternatives, and optimized variants for HTML, CSS, email, and JSON payloads.
Insomnia Severity Index Assessment Assess insomnia online with the 7-item ISI, review score bands and top symptom drivers, compare a prior total, and export a clear follow-up record.
Intermittent Fasting Planner Plan intermittent fasting schedules online with preset or custom daily windows, weekend shifts, and safeguard cues to fit meals, sleep, and training.
Internet Protocol (IP) Geolocation Finder Check IP geolocation online from a public IP, domain, or URL to inspect approximate location, ASN, timezone, reverse DNS, and map context for support triage.
Internet Protocol version 4 (IPv4) Subnet Calculator Calculate IPv4 subnets online from CIDR or dotted masks, inspect host ranges, wildcard math, and VLSM split plans before allocating network space.
Internet Protocol version 4 (IPv4) Subnet Split Calculator Calculate IPv4 subnet splits online from any address in a parent block, compare equal child CIDR options, and export rollout-ready subnet ledgers.
Interpersonal Reactivity Index Assessment Assess empathy facets online with the Interpersonal Reactivity Index to compare perspective taking, concern, fantasy, and distress for reflection.
Irrigation Runtime Calculator Calculate irrigation runtime online from ETo, target depth, or drip flow and gallons to set controller minutes, cycles, and weekly watering plans.
JSON Converter Convert JSON data online with JSON Lines parsing, record-path targeting, flattening controls, and exports for CSV, XML, Markdown, SQL, DOCX, and XLSX handoffs.
JSON Formatter Format JSON online into readable, compact, and deterministic views, flag duplicate keys and numeric precision risks, and export diagnostics for safer handoffs.
Job Satisfaction Survey Assess job satisfaction online with the Job Satisfaction Survey, score nine work facets plus the total, and spot workplace issues worth reviewing next.
Jungian Type Profile Assessment Assess Jungian preferences online with a 20-item proxy, estimate pair margins and a four-letter code, and review function-stack cues for reflection.
Kessler Psychological Distress Scale (K10) Assessment Assess psychological distress online with the K10, compare common and Australian banding guides, and export clearer symptom summaries for follow-up.
Kessler Psychological Distress Scale (K6) Screener Screen psychological distress online with the K6, compare the 5+ watch range and 13+ cutoff, and export item-by-item results for clearer follow-up.
Knockout Advancement Calculator Calculate knockout advancement online from two-leg scores, away-goal rules, extra time, and penalties to confirm who goes through under the right tie-break path.
Kubernetes Cluster Capacity Calculator Calculate online Kubernetes replica capacity from allocatable node resources, pod requests, rollout surge, PDB rules, and failure tolerance before scaling.
LaTeX Editor Edit LaTeX equations online with live preview, syntax checks, and SVG, PNG, PDF, MathML, AsciiMath, and DOCX exports for papers or teaching notes.
Large Language Model (LLM) Usage Cost Calculator Calculate LLM usage cost online from prompt and completion tokens, cache hits, retries, and budget caps to forecast monthly API spend before launch.
Lean Body Mass Calculator Calculate lean body mass online with a consensus headline, four formula estimates, and body-fat cross-checks to compare body-composition trends.
Letter Grade to GPA Converter Convert letter grades online to GPA values on custom scales, with optional plus/minus handling and clear metrics for transcript comparison or advising notes.
Liebowitz Social Anxiety Scale (LSAS-SR) Assessment Assess social anxiety online with the LSAS-SR, compare fear and avoidance across 24 situations, and review screening anchors for follow-up visits.
Life Orientation Test-Revised (LOT-R) Assessment Assess dispositional optimism online with the LOT-R, compare score balance and norm context, and track prior totals for steadier outlook reflection.
Locus of Control Orientation Proxy Assessment Assess locus of control online with a 12-item paired proxy, compare self-direction, chance, and powerful-others lanes, and plan a recheck.
Lorem Ipsum Generator Generate lorem ipsum online with paragraph, sentence, or word targets, tone and wrap controls, plus seeded output for repeatable mockups and draft layouts.
MAC Address Details Lookup Check MAC addresses online to normalize formats, inspect OUI and randomization signals, and compare vendor evidence for Wi-Fi, inventory, or asset triage.
MAS-12 Medication Adherence Proxy Assessment Assess medication adherence online with a 12-item MAS-style proxy, compare four routine supports, and prepare concrete questions for safer follow-up.
MBTI-Style Type Preference Proxy Assessment Assess type preferences online with a 28-item MBTI-style proxy, compare four preference pairs, and spot close-call lanes for self-reflection.
MTA-STS Validator Validate MTA-STS settings online by checking TXT records, policy mode and max_age, plus policy-host certificate status for mail security reviews.
MX Record Lookup Check MX records online, compare public resolver answers, flag Null MX, fallback, and alias issues, and review host readiness before mail changes.
Macro Target Calculator Calculate macro targets online from body metrics, activity, and goal to set calories, protein, carbs, fat, and meal splits for meal prep or diet checks.
Map Outlines Quiz Practice map outlines online with repeatable seeded quizzes for US states or world countries, then review scores and missed answers for geography study.
Marathon Pace Predictor Predict marathon pace online from weekly distance, training speed, and run frequency, then review splits and pacing charts before race day.
Maritime Signal Flags Quiz Practice maritime signal flags online with seeded quiz sets, instant scoring, and exports so you can build faster recognition for drills and study.
Maslach Burnout Inventory (MBI) Assessment Assess burnout online with a 22-item MBI-HSS review that scores exhaustion, depersonalization, and accomplishment for clearer work-strain follow-up.
MathML Editor Edit MathML markup online with live preview, structure counts, namespace checks, and clean formatting for documentation, QA, and reuse.
Matrix Screensaver Simulator Simulate a Matrix screensaver online with live control over speed, density, glow, and fullscreen playback for ambient loops or display demos.
Maximal Oxygen Uptake (VO2 Max) Calculator Estimate VO2 max online from heart-rate, Cooper, 1.5-mile, or Rockport inputs, compare benchmark ladders, and export results for training review.
Meditation Timer Plan meditation sessions online with bells, countdowns, interval cues, and exportable schedules for steadier solo or group practice rhythms.
Mid-Parental Target Height Calculator Calculate mid-parental target height online from mother and father heights, compare Tanner, UK, and adjusted methods, and frame family growth expectations.
Mindful Attention Awareness Scale (MAAS-15) Assessment Assess mindfulness online with the MAAS-15, calculate a 1 to 6 attention-awareness mean, and spot daily lapse patterns that need closer review.
Mini-IPIP Big Five Assessment Assess personality traits online with the 20-item Mini-IPIP, score five Big Five means, and inspect top, low, spread, and consistency cues.
Morse Code Decoder Decode Morse code online from dots and dashes, review normalized text and timing, and generate practice audio or exports for study and verification.
Morse Code Generator Generate Morse code online from plain text with timing, playback, and export files so you can practice copy speed or save reusable signal drafts.
Morse Code Quiz Test Morse code online with letters, numbers, or mixed seeded quizzes, answer charts, and exportable results for faster practice and review.
Mortgage Calculator Calculate online mortgage payments, amortization schedules, PMI timing, and cash-to-close estimates to compare loan costs and extra principal plans.
Motorcycle Tire Pressure Calculator Check motorcycle tire pressure online from manual or bike-type baselines, then tune cold front and rear targets for load, weather, and safer pre-ride setup.
Mulch Coverage Calculator Calculate mulch coverage online from bed area, finish depth, and current mulch, then compare bagged and bulk orders for buying and crew planning.
NEO PI-R Proxy Assessment Assess online NEO PI-R proxy traits across five domains and 30 facets with IPIP item scoring, helping compare broad traits and facet-level signals.
Nameserver Health Check Check nameserver delegation online for glue, SOA consistency, resolver drift, address health, and repair priorities before registrar or DNS provider changes.
Netcat Command Generator Generate online netcat commands for listeners, scans, TLS probes, and proxy sessions with shell-ready flags for faster socket testing and runbook prep.
Network Throughput Calculator Calculate online network throughput from link speed, RTT, TCP window, packet loss, and file size to expose bottlenecks and transfer timing.
ONET Interest Profiler-60 (IP-SF) Assessment Assess vocational interests online with the 60-item ONET Interest Profiler, compare RIASEC patterns, and narrow career or study options with clearer next steps.
One Rep Max (1RM) Calculator Estimate online one-rep max from a recent lifting set, compare seven formulas, and plan training max, load targets, and rep ranges for programming.
Online Bomberman Game Play Bomberman online in a grid maze with bombs, breakable blocks, powerups, difficulty modes, scoring, and run summaries for quick arcade practice.
Online Breakout Game Play Breakout online with preset or custom difficulty, track score, streak, and level progress, and export run summaries for quick arcade sessions.
Online Clock Check current time online in local or UTC mode, show or hide seconds, and export timestamp details for handoffs, shared displays, and audit logs.
Online Digger Game Play an online Digger-style tunnel game with emerald collection, gold-bag traps, difficulty modes, touch controls, and run summaries for arcade practice.
Online File Compressor Compress files online as ZIP, TAR, GZ, or Brotli outputs, compare size savings, verify SHA-256 hashes, and split downloads for tight transfer limits.
Online Pacman Game Play an online Pacman-style maze chase with keyboard or touch controls, power pellets, patrol chains, fruit bonuses, and run summaries for quick arcade practice.
Online Snake Game Play Snake online with selectable speed, wrap or solid walls, combo boosts, and local run summaries for sharper arcade practice and score checks.
Online Space Invaders Game Play Space Invaders online with mouse or keyboard controls, choose a difficulty, and track score, level, best run, and exported summaries for practice.
Online Tetris Game Play Tetris online with selectable speed, ghost and hold options, sound controls, saved best scores, and run summaries for focused arcade practice.
Online Tic Tac Toe Game Play tic tac toe online against the computer or a second player, use hints, move review, and streak tracking to sharpen tactical board strategy skills.
Ovulation Calculator Calculate ovulation timing online from your last period and cycle details, then review fertile windows, cycle maps, and planning notes for conception timing.
PANAS-SF Affect Snapshot Assessment Assess weekly affect online with a 10-item PANAS-SF snapshot that scores positive and negative affect separately for clearer tracking and follow-up.
PEM Bundle Extractor Extract PEM blocks online into labeled certificates, CSRs, and keys with SHA-256 fingerprints, trace details, and clean file splits for TLS troubleshooting.
Pace & Speed Converter Convert running pace and speed online, add distance for finish times, course markers, and split ladders, and compare race projections for pacing plans.
Password Strength Calculator Assess password strength online with pattern-aware scoring, crack-time scenarios, and upgrade guidance so you can reject risky secrets before account use.
Patient Health Questionnaire (PHQ-15) Assessment Assess somatic symptom burden online with the PHQ-15, compare current and prior scores, and organize symptom clusters for clearer follow-up visits and notes.
Patient Health Questionnaire (PHQ-9) Assessment Assess PHQ-9 depression symptoms online, review severity bands, item-level patterns, and follow-up context for screening visits or progress checks.
Perceived Stress Scale (PSS-10) Assessment Assess stress online with the PSS-10, reverse-score positive items, compare a prior total, and spot item patterns for monthly follow-up.
Personal Carbon Budget Analyzer Analyze personal carbon budgets online across home energy, travel, diet, and offsets to reveal top emission drivers, compare target lanes, and plan yearly cuts.
Personal Loan Calculator Calculate personal loan repayments online with origination-fee scenarios, payoff schedules, and extra-payment planning to compare cost, timing, and interest.
Pittsburgh Sleep Quality Index Assessment Assess sleep quality online with the Pittsburgh Sleep Quality Index, review seven component scores and threshold cues, and organize sleep follow-up notes.
Planting Calendar Planner Plan planting calendars online from frost dates, crop timing, and succession settings so seed starts, bed prep, and harvest windows stay organized.
Pomodoro Timer Run Pomodoro focus cycles online with custom work and break lengths, goal ETA planning, and schedule exports for steadier work sessions.
Posttraumatic Stress Disorder Checklist (PCL-5) Assessment Assess PTSD symptoms online with a PCL-5 past-month checklist that shows 31-33 cut points, DSM-5 cluster counts, and repeat-check change cues.
Pranayama Sequence Planner Plan pranayama sequences online with step timings, pace scaling, rests, a phase ledger, and exports so you can build a breathwork session with clear timing totals.
Pregnancy Due Date Calculator Calculate pregnancy due dates online from LMP, conception, IVF transfer, or ultrasound dating, then map visit windows and milestones for prenatal planning.
Primary Care PTSD Screen (PC-PTSD-5) Screen PTSD symptoms online with the PC-PTSD-5, compare trauma-gate results at 3+ and 4+, and prepare a clearer primary care follow-up discussion.
Progressive Muscle Relaxation (PMR) Coach Time progressive muscle relaxation online with adjustable tense and relax phases, optional cues and exports, and a clear session plan for practice or coaching.
Projected Adult Height Calculator Project online adult height from current stature, parent heights, and timing assumptions, then compare scenarios and family fit for clearer growth planning.
Prompt String 1 (PS1) Generator Generate online Bash PS1 prompts from ordered tokens, colors, and shell escapes so you can build readable terminal and SSH prompts for dev and admin work.
Properties Converter Convert Java properties online into YAML, JSON, INI, env, and normalized key summaries for clearer config review, duplicate checks, and safer handoffs.
Psychological Flexibility Assessment (AAQ-2) Assess online psychological flexibility with seven AAQ-II items, score bands, support cues, and recheck guidance for values-based reflection.
Punycode IDN Converter Convert online IDN hostnames between Unicode and Punycode, audit labels and wire limits, and prepare safer DNS paste forms for security review.
Qibla Finder Find qibla direction online with true or magnetic north, turn guidance, and a Kaaba line map for clearer daily prayer alignment from your location.
Quick Response (QR) Code Decoder Decode QR code images online from screenshots, files, URLs, or data URIs, then inspect payload, type, and trace details before opening links or copying setup data.
Quick Response (QR) Code Generator Generate QR codes online for links, Wi-Fi access, contacts, messages, and events with scan-readiness checks for contrast, capacity, quiet zone, and logo risk.
RAID Performance Calculator Calculate online RAID performance from level, drive count, workload mix, block size, targets, and rebuild assumptions to size storage headroom.
RAID Reliability and MTTDL Calculator Estimate online RAID reliability from AFR, rebuild time, URE exposure, spares, and layout choices to compare data-loss risk before storage rollout.
RAID Sizing Calculator Calculate online RAID usable capacity, spares, fill targets, chassis fit, rebuild exposure, and drive-market growth paths for defensible storage sizing decisions.
RAND SF-12 Health Survey (SF-12) Assess health-related quality of life online with the RAND SF-12, compare physical and mental patterns, and keep clearer follow-up notes over time.
RAND SF-36 Health Survey (SF-36) Assess RAND SF-36 health-related quality of life online, review eight domain scores with transparent summaries, and spot follow-up priorities.
RSA Keys Converter Convert RSA keys online between PKCS#1, PKCS#8, SPKI, and encrypted PEM wrappers so the same key fits servers, libraries, and deployment handoffs.
Race Finish Time Calculator Calculate race finish times online from pace or speed, model pacing profiles, planned stops, and cutoffs, and export split plans for race-day pacing.
Race Finish Time Predictor Predict race finish times online from a prior result, adjust the Riegel exponent and conditions, and compare splits and scenarios for pacing decisions.
Random Number Generator Generate random numbers online with browser-based or seeded draws, weighted profiles, no-repeat rules, and session diagnostics for testing or sampling.
Random Picker Pick names online with weighted odds, seed replay, group caps, and fairness estimates so you can document repeatable selections and explain every draw.
Rate of Perceived Exertion (RPE) Calculator Calculate online RPE across Borg, CR10, and strength scales to compare effort, estimate heart-rate cues, and project session load for training.
Redundant Array of Independent Disks (RAID) Calculator Calculate RAID capacity online for RAID 0, 1, 5, 6, 10, 50, and 60 with spares, mixed disks, reserves, and rebuild estimates for safer array planning.
Relationship Assessment Scale (RAS) Assess relationship satisfaction online with the seven-item RAS, compare your score with the midpoint, and spot support or strain for follow-up talks.
Resolver Policy Difference Comparator Compare online DNS resolver policy differences across open, security, and family filters to separate blocking evidence from cache drift.
Reverse DNS (PTR) Checker Check reverse DNS online for IPv4, IPv6, or hostnames, confirm PTR and forward-confirmed rDNS, and catch naming or resolver issues during mail troubleshooting.
Revised Dyadic Adjustment Scale (RDAS) Assessment Assess relationship adjustment online with the 14-item RDAS, compare the 0 to 69 total with the 48 cutoff, and spot the weakest relationship domain.
Road Signs Quiz Practice road signs online with seeded MUTCD quizzes, instant scoring, answer review, and repeatable drills for driving test study or classroom refreshers.
Robots.txt Generator Generate robots.txt rules online with user-agent groups, sitemap and host helpers, imports, and export-ready views for safer crawl-control reviews.
Rosenberg Self-Esteem Scale (RSES) Assessment Assess self-esteem online with the Rosenberg Self-Esteem Scale, compare your 0-30 total with adult norm context, and track change across repeat check-ins.
SAS-Style Anxiety Proxy Assessment Assess online anxiety load with a SAS-style 20-item proxy, reverse scoring, index bands, domain drivers, and follow-up planning cues for review.
SHAS-A Adult Health Anxiety Proxy Assessment Assess online health anxiety patterns with a 14-item proxy score, cutoff lenses, driver areas, repeat comparison, and follow-up guidance.
SLOAN Personality Code Assessment (Proxy) Map online Big Five trait tilts into a SLOAN-style code with Mini-IPIP items, swing axes, adjacent codes, and practical profile guidance.
SMIMEA / OPENPGPKEY Lookup Look up online SMIMEA and OPENPGPKEY DNS records with owner derivation, resolver comparison, payload parsing, DNSSEC evidence, and exportable audit rows.
SPF Record Generator Generate online SPF TXT records from includes, IP ranges, A or MX mechanisms, redirect policy, lookup budget, and publish-ready DNS guidance.
SPF Validation Report Validate an SPF record with directive parsing, expansion-trace tracking, DNS lookup budget checks, and terminal policy notes.
SQLite Manager Manage SQLite databases online in your browser by browsing tables and views, running queries, editing rows, and exporting results for quick checks.
SRV / NAPTR Service Discovery Check Check online SRV and NAPTR service discovery for SIP, SIPS, XMPP, or LDAP domains against public resolver views to find routing gaps and drift.
SSD Endurance (DWPD/TBW) Calculator Estimate online SSD endurance from DWPD, TBW, workload writes, write amplification, SMART counters, and warning thresholds for replacement planning.
SSL CA Matcher Check SSL issuer pairs online by comparing a leaf certificate with a candidate CA and flagging chain, policy, and expiry issues before deployment.
SSL Certificate Chain Checker Check certificate chains online from a live host or PEM text, verify issuer links and hostname coverage, and export a deployment-ready PEM bundle.
SSL Checker Check SSL posture online for one hostname, then compare endpoint grades, trust paths, protocol support, and renewal risk before fixing HTTPS drift.
SSL Expiry Checker Check certificate expiry online for a live host, confirm SAN coverage, and export renewal facts so you can replace the right TLS certificate before outages.
SSL Matcher (Certificate, CSR, and Key) Compare SSL certificate, CSR, and RSA private key data online by matching SPKI fingerprints, then confirm the right files before renewal, migration, or deployment.
SSL OCSP Checker Check OCSP revocation status online for a live host or pasted certificate, then review responder timestamps, transport evidence, and replay-ready output.
SWOLF Analyzer Analyze swim SWOLF online across pool sets, compare lap drift, stroke count, and pacing patterns to spot fatigue, steadiness, and cleaner repeats.
Satcom Status Tracker Track satcom satellites online with TLE freshness checks, optional SatNOGS overlays, and orbit-status charts to guide quick link planning decisions.
Satellite Pass Tracker Track satellite passes online with live or manual TLE input, local observer coordinates, elevation filtering, and rise-max-set timing for observation planning.
Satisfaction With Life Scale (SWLS) Assessment Assess life satisfaction online with the five-item SWLS, review official score bands and response patterns, and spot statements that need closer review.
Savings Goal Calculator Calculate savings goals online from your balance, monthly deposits, return, and yearly increases so you can estimate timing, required savings, or ending value.
Schutte Self-Report Emotional Intelligence Test (SSEIT) Assess emotional intelligence online with the 33-item Schutte SSEIT, compare total and lane patterns, and export a structured reflection record for later review.
Scoreboard Tracker Track two-team scores online with a countdown clock, point-step controls, and exportable history for cleaner manual game management today.
Secure Password Generator Generate secure passwords online with presets, character-pool controls, entropy and strength checks, history comparison, trend charts, and exports.
Secure Shell (SSH) Client Config Editor Edit SSH client config online to review host blocks, compare changes, flag risky directives, and rebuild cleaner connection profiles for safer server access
Secure Shell (SSH) Key Fingerprint Checker Check SSH key fingerprints online in SHA-256, MD5, and optional SHA-1 to verify public keys, known_hosts entries, and SSHFP records with confidence.
Secure Shell (SSH) Public Key Converter Convert SSH public keys online between OpenSSH, SSH2, and PEM formats while checking fingerprints, comments, and key details for safer server handoffs.
Secure Shell (SSH) Public Key Extractor Extract SSH public keys online from OpenSSH or RSA private keys and public key lines, then review fingerprints and build an authorized_keys entry.
Secure Sockets Layer (SSL) Certificate Converter Convert SSL certificates online between PEM, DER, PKCS#7, and PKCS#12, inspect issuer and expiry details, and build import-ready bundles for deployment.
Secure Sockets Layer (SSL) Certificate Decoder Decode SSL certificates online to inspect issuer, SAN entries, validity dates, fingerprints, and usage flags for faster X.509 troubleshooting or audits.
Self-Compassion Scale Short Form (SCS-SF) Assessment Assess self-compassion online with the 12-item SCS-SF, compare supportive and harsh-self patterns, and track your clearest next practice focus over time.
Semaphore Signals Quiz Practice semaphore flag signals online with seeded A to Z quizzes and no repeats, pick 5 to 26 questions, keep results local for study drills and skill checks.
Series Score Tracker Track best-of series scores online with per-game winner logging and automatic clinch detection, then export match history for staff, streams, and recap notes.
Shoe Size Converter Convert shoe sizes online across US, UK, EU, JP, MX, CN, KR, and BR from foot length or a known size to compare labels and avoid shopping chart mix-ups.
Short Dark Triad (SD3) Assessment Assess dark triad tendencies online with the 27-item SD3, compare Machiavellianism, narcissism, and psychopathy means, and export a reusable profile record.
Shot Clock Timer Run online shot clock countdowns with configurable warning and reset behavior, then track possession events and violations for practice or table use.
Sick, Control, One Stone, Fat, Food (SCOFF) Screen eating-disorder risk online with the 5-question SCOFF, check the 2+ cutoff, and organize clear follow-up notes for care or support discussions.
Simple Interest Calculator Calculate simple interest online from principal, annual rate, term, day-count basis, and withholding to compare quotes and estimate maturity proceeds.
Sleep Debt Calculator Calculate sleep debt online from recent nightly sleep logs, deficit caps, oversleep credit, and recovery lanes to plan catch-up sleep with clearer assumptions.
Sleep Hygiene Gap Checker Check sleep hygiene gaps online across caffeine, light, schedule, screens, and bedroom habits, then rank the next routine changes for steadier sleep.
Sleep Sound Generator Generate sleep sound online with masking recipes, timers, fade controls, and safe-volume guidance for calmer bedtime audio and reusable session plans.
Sleep Window Adjustment Planner Plan sleep window changes online from weekly sleep efficiency, a fixed wake time, and threshold rules to compare bedtimes and follow-up decisions.
Social Interaction Anxiety 6-Item Proxy Screener Assess online social interaction anxiety proxy scores with six paraphrased SIAS-style items, lane cues, and follow-up prompts for safer self-review.
Soil Amendment Calculator Calculate soil amendments online from bed size, depth, pH, and organic matter targets so you can size compost, lime, sulfur, gypsum, and material budgets.
Soil Volume Calculator Calculate soil volume online for raised beds, circular planters, or measured areas so you can estimate bag counts, bulk loads, and delivery weight.
Starfield Screensaver Simulator Simulate a starfield screensaver online with live motion controls, performance readouts, and scene snapshots for tuning ambient loops or demo backdrops.
Stimulus Control Steps Planner Plan insomnia stimulus-control steps online with a fixed wake anchor, awake-time reset rules, and adherence guidance for steadier sleep routines.
Stopwatch Track elapsed time online with a stopwatch that records laps, compares splits to a target pace, and exports practice sessions as CSV, JSON, or DOCX.
Subdivision Flags Quiz Practice subdivision flags online with country and region sets, replay seeded quizzes, and review score breakdowns for stronger study and trivia recall.
Subjective Happiness Scale (SHS) Assessment Assess subjective happiness online with the four-item SHS, average the standard 1 to 7 score, and review strongest and weakest supports for reflection.
Switzerland Rail Service Tracker Track Swiss rail services online with live departure or arrival boards, destination and line filters, and delay snapshots to plan platforms and connections.
TB/TiB/GB/GiB Converter Convert online TB, TiB, GB, and GiB labels while preserving exact bytes, platform wording, pair gaps, and procurement-ready capacity checks.
TLS Handshake Trace Trace TLS handshakes online for a host and port, inspect protocol, cipher, ALPN, and certificate details, and isolate endpoint misconfiguration fast.
TLS-RPT Record Validator Validate TLS-RPT records online with tag parsing, rua URI checks, resolver-aware builder snippets, and policy signals for safer mail-report rollouts.
TOML Converter Convert TOML online into clean TOML, YAML, JSON, INI, env, and properties text with path and schema views for clearer config checks and handoffs.
Tab-Separated Values (TSV) Converter Convert TSV data online into JSON, SQL, XML, Markdown, CSV, DOCX, and XLSX with header checks, typed profiling, and safer audit work before import.
Tap-Tempo Beats Per Minute (BPM) Calculator Measure music tempo online with tap input, rolling BPM, drift tracking, and session exports for quick rehearsal clicks, cue notes, or metronome setup.
Target and Maximum Heart Rate Calculator Calculate target heart rate online from age or known max HR, compare zone models and hold ranges, and check whether current effort fits your workout plan.
Team Fouls Tracker Track team foul status online across NBA, FIBA, NCAA, and NFHS rulesets, monitor penalty changes, and export bench-ready foul summaries.
Tempo Generator / Metronome Generate tempo practice plans online with metronome playback, tap tempo, swing control, and ramp blocks so you can steady timing and build speed in stages.
Ten-Item Personality Inventory (TIPI) Assessment Assess Big Five personality traits online with the 10-item TIPI, score the five official means, and compare your profile with published norm samples.
Terminal Installer Simulator Simulate terminal installer sessions online with scenario presets, seeded replay, network profiles, and exportable logs for demos, training, or QA walkthroughs.
Text Encryptor & Decryptor Encrypt text online with AES, Argon2id or PBKDF2 key derivation, and flexible output formats to protect notes, snippets, and shared secrets.
Text Hash Generator Generate text hashes online with MD5, SHA-1, SHA-2, SHA-3, and RIPEMD-160, add optional salt rules, and save or copy digests for checks and records.
Text Sorter Sort text online with alphabetical, natural, reverse, length, or seeded shuffle modes, then export cleaned lists for documents, filenames, and data prep.
Time Calculator Calculate time durations online between clock readings or shift a base time with breaks, rounding, and day offsets for payroll, schedules, and handovers.
Timeout Tracker Run a league-aware timeout command board with phase inventory, live countdown control, reserve-pressure alerts, and exportable bench logs.
Today's Date Check today's date online in local or UTC view, compare calendar boundaries, and export ISO, weekday, offset, week, and Unix details for handoffs.
Tone Generator Generate reference tones online with frequency, waveform, and volume controls, then save note and playback details for tuning, cues, or practice checks.
Trace CNAME Alias Chain Trace online CNAME alias chains across public resolvers, terminal RRsets, TTLs, loops, suffix checks, and resolver drift for DNS cutover validation.
UCLA Loneliness Scale-20 (ULS-20) Assessment Assess loneliness online with the ULS-20, review the original 20 to 80 score, support lenses, and export-ready summaries for tracking or discussion prep.
UCLA Loneliness Scale-8 (ULS-8) Assessment Assess loneliness online with the ULS-8, calculate the official total, mean, and 0 to 100 score, and review item and prior-score patterns for follow-up planning.
UCLA Loneliness Short Check Assess online UCLA three-item loneliness scores with cue lanes, context notes, and change tracking for clearer support conversation planning.
URL Blacklist Status Lookup Lookup online URL blacklist status across Safe Browsing, SURBL, and local URL signals to triage suspicious links and investigation next steps.
Unicode Character Lookup Inspect online Unicode characters, code points, escapes, normalization forms, UTF byte views, and safer copy targets for debugging exact text.
Uniform Resource Locator (URL) Decoder Decode online URLs and percent-encoded text, clean trackers and duplicate parameters, inspect characters and payloads, and rebuild clearer links before sharing.
Uniform Resource Locator (URL) Encoder Encode URLs, URL components, form values, and path fragments into safe percent-escaped output with character-level review, QR handoff, and exportable results.
Universally Unique Identifier (UUID) Decoder Decode UUID values online into version, variant, timestamp, node, and bit-layout details for debugging storage choices, audits, and interoperability checks.
Universally Unique Identifier (UUID) Generator Generate UUIDs online across versions 1, 3, 4, 5, 6, and 7 with namespace, formatting, and history options for stable mappings or time-ordered IDs.
Uptime Calculator Calculate uptime budgets online as downtime allowances, burn pace, and target comparisons so you can review outages, maintenance policy, and reliability risk.
VAT Calculator Calculate VAT online from net, gross, or tax-only amounts with quantity-aware rounding and receipt-style outputs for invoice checks and price planning.
Virtual Machine Storage Calculator Calculate online VM storage needs from VM count, disk use, snapshots, growth, reserve, and protection policy to plan datastore capacity.
Virtualization Host Capacity Calculator Calculate online virtualization host capacity from cluster hosts, vCPU, memory, reserves, and failure targets to size growth and HA runway.
Visual IPv4 Subnet Calculator / Splitter Plan online IPv4 subnet splits with visual ranges, host counts, and exportable tables for clearer VLAN, ACL, and handoff-ready allocation reviews.
WAN Latency Calculator Calculate online WAN latency from route distance, fiber delay, hops, queues, jitter, and RTT targets to plan network paths and app placement.
WHO-5 Well-Being Assessment Check well-being online with the WHO-5, compare raw and percent scores, review stronger and thinner supports, and track repeat check-ins more clearly.
WHOIS / RDAP Lookup Check domain registration data online with RDAP-first lookup and WHOIS fallback to review registrar, status, nameservers, and renewal timing before transfers.
WPDS Historical Proxy Assessment Review online Woodworth-style symptom flags with a 24-item historical proxy, lane densities, prior comparison, and modern follow-up context.
WWN and NAA Identifier Lookup Lookup online WWN and NAA identifiers from SAN text, device paths, and hex tokens to decode shape, company ID, and triage next actions.
Waist to Height Ratio Calculator Calculate waist-to-height ratio online, compare NICE and legacy screening bands, convert target ratios into waist goals, and flag use-limit cautions.
Waist to Hip Ratio Calculator Calculate waist-to-hip ratio online with sex-specific bands, custom cutoffs, and uncertainty checks to review central fat distribution more carefully.
Web Server Detector Detect web server software online from response headers and redirect hops, then review confidence, ranked candidates, and origin hints for faster stack triage.
Weight Loss Calculator Calculate weight-loss goals online with calorie targets, weekly runway projections, pace lanes, and warning flags so you can set a more realistic finish date.
Weight-for-Age Percentile Calculator Check weight-for-age percentiles online with WHO, CDC, and corrected-age options so you can review z-scores, alert lanes, and follow-up guidance.
Weight-for-Length Percentile Calculator Calculate weight-for-length percentiles online from pediatric weight and length, compare WHO and CDC references, and flag low or high screening bands.
Wget Command Generator Generate online wget commands for HTTP, HTTPS, or FTP downloads with shell-aware quoting, headers, retries, imports, and exports for repeatable transfers.
What Is My Browser Check browser capabilities online with a live snapshot of browser identity, storage, graphics, and privacy signals for faster support troubleshooting.
What Is My Internet Protocol (IP) Address? Check IP address details online with current-route detection, ASN, timezone, source consensus, and PTR hostname clues for VPN checks or firewall allowlists.
What Is My Screen Resolution Check screen resolution online with viewport, DPR, breakpoint audits, and capture-size exports so you can debug responsive layouts and screenshot prep faster.
Word Counter Count words online, review readability, repeated phrases, and text-length patterns, then export tables, charts, or JSON for cleaner draft revisions.
Word Search Generator Generate word search puzzles online from custom A-Z word lists with repeatable seeds, answer keys, and printable exports for lessons or themed handouts.
World Health Organization Quality of Life (WHOQOL-BREF) Assess quality of life online with WHOQOL-BREF, score four domains plus two general items, and spot which parts of daily life may need extra support.
YAML Converter Convert YAML online into normalized YAML, JSON, INI, env, and properties text while exposing document paths and schema rows for clearer config reviews.
ZFS Capacity Calculator Calculate online ZFS pool capacity from vdev layout, disk reserves, slop space, recordsize, ashift, special-vdev carveouts, and target-fit paths.
cURL Command Generator Generate online cURL commands for HTTP requests with headers, auth, body modes, retries, imports, and shell-specific output for API testing and handoffs.
chmod Calculator Calculate chmod modes online from Unix permission bits, symbolic edits, baselines, and umask outcomes so safer file and directory commands are easier to review.

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