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.htaccess Generator
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Age Calculator
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Alcohol Use Disorders Identification Test (AUDIT-10)
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Alcohol Use Disorders Identification Test (AUDIT-C)
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Application Programming Interface (API) Testing Tool
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Autonomous System Number (ASN) Information Lookup
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BMR & TDEE Calculator
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Backup Rotation Planner
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Base64 Encoder and Decoder
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Beck Anxiety Inventory (BAI) Assessment
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Beck Depression Inventory-II (BDI-II)
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Beck Hopelessness Scale (BHS) Assessment
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Bingo Card Generator
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Body Composition Calculator
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Body Mass Index (BMI) Calculator
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Body Surface Area Calculator
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Breathing Pacer
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Brief Resilience Scale (BRS) Assessment
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Brief Resilient Coping Scale (BRCS) Assessment
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Brief Self-Control Scale (BSCS) Assessment
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Caffeine Content Calculator
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Caffeine Cut-off Calculator
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Calories Burned Calculator
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Car Loan Calculator
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Center for Epidemiologic Studies Depression (CES-D-20)
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Ceph Storage Capacity Calculator
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Certificate Signing Request (CSR) Decoder
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Certificate Signing Request (CSR) Generator
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Coffee Brew Planner
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Cognitive Reflection Test (CRT-3) Assessment
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Cognitive Reflection Test (CRT-7) Assessment
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Coin Flipper
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Comma-Separated Values (CSV) Converter
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Compost Carbon-to-Nitrogen (C:N) Ratio Calculator
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Compound Interest Calculator
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Copenhagen Burnout Inventory (CBI) Assessment
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Country Flags Quiz
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Credit Card Calculator
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Credit Card Number Generator
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Credit Card Number Validator
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Crontab Generator
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Crossword Puzzle Generator
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Cut Down, Annoyed, Guilty, Eye-opener (CAGE) Assessment
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DNS Blackhole List (DNSBL) Status Checker
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Debt Repayment Calculator
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Depression Anxiety Stress Scales (DASS-21) Assessment
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Depression Anxiety Stress Scales (DASS-42) Assessment
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Dice Roller
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Domain Name System (DNS) Configuration Report
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Domain Name System (DNS) Record Lookup
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Domain Name System (DNS) Trace Analyzer
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Domain Name System Security Extensions (DNSSEC) Validation
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Domain Who Is (WHOIS) Lookup
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Domain-based Message Authentication (DMARC) Report
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DomainKeys Identified Mail (DKIM) Checker and Validator
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Edinburgh Postnatal Depression Scale (EPDS) Assessment
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Electric Vehicle (EV) Charging Time Calculator
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Email Header Analyzer
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Endurance Fuel Planner
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Epoch Time Converter
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Epworth Sleepiness Scale (ESS) Assessment
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EuroQol 5-Dimension 5-Level (EQ-5D-5L) Survey
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Exchangeable Image File Format (EXIF) Viewer & Editor
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Extension Mechanisms for DNS (EDNS) Client-Subnet Tester
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Fat-Free Mass Index (FFMI) Calculator
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Fertilizer Solution Mix Calculator
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File Encryptor & Decryptor
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File Hash Generator
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File Transfer Time Calculator
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Filebeat Grok Pattern Generator
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Fixed Deposit Calculator
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Free Space Path-loss & RSSI Calculator
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Garden Bed Planner
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Generalized Anxiety Disorder (GAD-7) Assessment
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Geriatric Depression Scale (GDS-15) Assessment
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Global Domain Name System (DNS) Propagation Checker
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GlusterFS Volume Capacity Calculator
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Gratification Delay Timer
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Grit-S Assessment
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HEXACO Personality Inventory (HEXACO-60) Assessment
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Hash Type Identifier
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Heart Rate (HR) Zones Calculator
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Heart Rate Variability (HRV) Resonance Finder
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Hypertext Transfer Protocol (HTTP) Header Checker
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Hypertext Transfer Protocol (HTTP) Redirect Checker
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IPIP Personality Inventory (IPIP-NEO-120) Assessment
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IPIP Personality Inventory (IPIP-NEO-60) Assessment
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IPv4 Allocation Planner
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IPv6 Address Compressor / Expander
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Ideal Weight Calculator
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Image Compressor
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Image Cropper
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Image Resizer
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Insomnia Severity Index Assessment
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Intermittent Fasting Planner
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Internet Protocol (IP) Geolocation Finder
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Internet Protocol version 4 (IPv4) Subnet Calculator
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Internet Protocol version 4 (IPv4) Subnet Split Calculator
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Interpersonal Reactivity Index Assessment
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Irrigation Runtime Calculator
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Job Satisfaction Survey
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Kessler Psychological Distress Scale (K10) Assessment
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Kessler Psychological Distress Scale (K6) Screener
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LaTeX Editor
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Large Language Model (LLM) Usage Cost Calculator
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Lean Body Mass Calculator
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Liebowitz Social Anxiety Scale (LSAS-SR) Assessment
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Life Orientation Test-Revised (LOT-R) Optimism Index
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Macro Target Calculator
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Mail Transfer Agent Strict Transport Security (MTA-STS)
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Marathon Pace Predictor
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Maslach Burnout Inventory (MBI) Assessment
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Maximal Oxygen Uptake (VO2 Max) Calculator
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Meditation Timer
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Mindful Attention Awareness Scale (MAAS-15) Assessment
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Morse Code Decoder
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Morse Code Generator
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Mortgage Calculator
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Mulch Coverage Calculator
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Netcat Command Generator
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O*NET Interest Profiler-60 (IP-SF) Assessment
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One Rep Max (1RM) Calculator
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Online Breakout Game
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Online File Compressor
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Online Snake Game
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Online Space Invaders Game
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Online Tetris Game
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Online Tic Tac Toe Game
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PANAS-SF Affect Schedule (PANAS-SF) Assessment
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Pace & Speed Calculator
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Password Strength Calculator
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Patient Health Questionnaire (PHQ-9) Assessment
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Perceived Stress Scale (PSS-10) Assessment
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Personal Carbon Budget Analyzer
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Personal Loan Calculator
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Planting Calendar Planner
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Pomodoro Timer
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Posttraumatic Stress Disorder Checklist (PCL-5) Assessment
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Pranayama Sequence Planner
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Pregnancy Due Date Calculator
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Primary Care Post-Traumatic Stress Disorder (PC-PTSD-5)
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Progressive Muscle Relaxation (PMR) Coach
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Prompt String 1 (PS1) Generator
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Qibla Finder
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Quick Response (QR) Code Decoder
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Quick Response (QR) Code Generator
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RAND SF-12 Health Survey (SF-12)
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RAND SF-36 Health Survey (SF-36)
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Random Number Generator
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Random Picker
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Rate of Perceived Exertion (RPE) Calculator
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Redundant Array of Independent Disks (RAID) Calculator
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Relationship Assessment Scale (RAS)
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Revised Dyadic Adjustment Scale (RDAS) Assessment
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Rosenberg Self-Esteem Scale (RSES) Assessment
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SQLite Manager
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Satisfaction With Life Scale (SWLS) Assessment
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Savings Goal Calculator
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Schutte Self-Report Emotional Intelligence Test (SSEIT)
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Secure Password Generator
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Secure Shell (SSH) Client Config Editor
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Secure Shell (SSH) Key Fingerprint Checker
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Secure Shell (SSH) Public Key Converter
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Secure Shell (SSH) Public Key Extractor
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Secure Sockets Layer (SSL) Certificate Converter
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Secure Sockets Layer (SSL) Certificate Decoder
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Secure Sockets Layer (SSL) Checker
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Secure Sockets Layer (SSL) Expiry Checker
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Self-Compassion Scale Short Form (SCS-SF) Assessment
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Sender Policy Framework (SPF) Checker and Validator
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Shoe Size Converter
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Short Dark Triad (SD3) Assessment
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Sick, Control, One Stone, Fat, Food (SCOFF)
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Sleep Debt Calculator
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Sleep Sound Generator
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Soil Amendment Calculator
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Soil Volume Calculator
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Subjective Happiness Scale (SHS) Assessment
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Tap-Tempo Beats Per Minute (BPM) Calculator
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Target and Maximum Heart Rate Calculator
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Tempo Generator / Metronome
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Ten-Item Personality Inventory (TIPI) Assessment
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Text Encryptor & Decryptor
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Text Hash Generator
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Text Sorter
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UCLA Loneliness Scale-20 (ULS-20) Assessment
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UCLA Loneliness Scale-8 (ULS-8) Assessment
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Uniform Resource Locator (URL) Decoder
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Uniform Resource Locator (URL) Encoder
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United States (US) State Flags Quiz
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Universally Unique Identifier (UUID) Decoder
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Universally Unique Identifier (UUID) Generator
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Uptime Calculator
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Visual IPv4 Subnet Calculator / Splitter
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Waist to Height Ratio Calculator
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Waist to Hip Ratio Calculator
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Weight Loss Calculator
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Wget Command Generator
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What Is My Browser
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What Is My Internet Protocol (IP) Address?
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What Is My Screen Resolution
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Word Counter
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Word Search Generator
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World Health Organization Five Well-Being Index (WHO-5)
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World Health Organization Quality of Life (WHOQOL-BREF)
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cURL Command Generator
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chmod Calculator
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