freetools — all 250 tools
Every tool below is free, works offline in your browser, and is available in 10 languages.
| Tool | Category | Languages |
|---|---|---|
| Age Calculator | time | en zh hi es fr ar bn pt ru ur |
| Age in Different Units | utility | en zh hi es fr ar bn pt ru ur |
| Algebra Equation Solver | math | en zh hi es fr ar bn pt ru ur |
| List Alphabetizer | text | en zh hi es fr ar bn pt ru ur |
| Anagram Solver | text | en zh hi es fr ar bn pt ru ur |
| Angle Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Area Calculator | math | en zh hi es fr ar bn pt ru ur |
| Area Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Aspect Ratio Calculator | design | en zh hi es fr ar bn pt ru ur |
| Aspect Ratio Calculator | math | en zh hi es fr ar bn pt ru ur |
| Average Calculator | math | en zh hi es fr ar bn pt ru ur |
| Backwards Text Generator | text | en zh hi es fr ar bn pt ru ur |
| Base64 Encoder / Decoder | dev | en zh hi es fr ar bn pt ru ur |
| Online Basic Calculator | math | en zh hi es fr ar bn pt ru ur |
| Binary Translator | text | en zh hi es fr ar bn pt ru ur |
| Number Base Converter | math | en zh hi es fr ar bn pt ru ur |
| Biorhythm Calculator | games | en zh hi es fr ar bn pt ru ur |
| Blood Type Compatibility Checker | health | en zh hi es fr ar bn pt ru ur |
| BMI Calculator | health | en zh hi es fr ar bn pt ru ur |
| BMR Calculator | health | en zh hi es fr ar bn pt ru ur |
| Body Fat Percentage Calculator | health | en zh hi es fr ar bn pt ru ur |
| Body Fat Percentage Classifier | health | en zh hi es fr ar bn pt ru ur |
| Border Radius Generator | design | en zh hi es fr ar bn pt ru ur |
| CSS Box Shadow Generator | design | en zh hi es fr ar bn pt ru ur |
| Break-Even Calculator | finance | en zh hi es fr ar bn pt ru ur |
| 50/30/20 Budget Rule Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Caesar Cipher | utility | en zh hi es fr ar bn pt ru ur |
| Calorie Burn Calculator | health | en zh hi es fr ar bn pt ru ur |
| Food Calorie Calculator | health | en zh hi es fr ar bn pt ru ur |
| Case Converter | text | en zh hi es fr ar bn pt ru ur |
| Cat Age Calculator | games | en zh hi es fr ar bn pt ru ur |
| Character and Word Counter | utility | en zh hi es fr ar bn pt ru ur |
| Character Counter | text | en zh hi es fr ar bn pt ru ur |
| Checklist Maker | productivity | en zh hi es fr ar bn pt ru ur |
| Coin and Note Counter | finance | en zh hi es fr ar bn pt ru ur |
| Coin Flip | random | en zh hi es fr ar bn pt ru ur |
| Color Format Converter | utility | en zh hi es fr ar bn pt ru ur |
| Color Picker | utility | en zh hi es fr ar bn pt ru ur |
| Combination & Permutation Calculator | math | en zh hi es fr ar bn pt ru ur |
| Compound Interest Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Color Contrast Checker | design | en zh hi es fr ar bn pt ru ur |
| Countdown Timer | time | en zh hi es fr ar bn pt ru ur |
| Countdown Timer | time | en zh hi es fr ar bn pt ru ur |
| Cron Expression Builder | dev | en zh hi es fr ar bn pt ru ur |
| CSS Gradient Generator | design | en zh hi es fr ar bn pt ru ur |
| CSS Minifier | dev | en zh hi es fr ar bn pt ru ur |
| CSV to JSON Converter | dev | en zh hi es fr ar bn pt ru ur |
| Currency Converter | finance | en zh hi es fr ar bn pt ru ur |
| Date Add/Subtract Calculator | utility | en zh hi es fr ar bn pt ru ur |
| Day of the Week | time | en zh hi es fr ar bn pt ru ur |
| Days Between Dates | time | en zh hi es fr ar bn pt ru ur |
| Decimal to Fraction Converter | math | en zh hi es fr ar bn pt ru ur |
| Decision Maker | games | en zh hi es fr ar bn pt ru ur |
| Diff Checker | dev | en zh hi es fr ar bn pt ru ur |
| Discount Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Dog Age Calculator | games | en zh hi es fr ar bn pt ru ur |
| Pregnancy Due Date Calculator | health | en zh hi es fr ar bn pt ru ur |
| Date & Time Duration Calculator | time | en zh hi es fr ar bn pt ru ur |
| Electricity Cost Calculator | home | en zh hi es fr ar bn pt ru ur |
| Emergency Fund Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Loan EMI Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Emoji Picker | text | en zh hi es fr ar bn pt ru ur |
| Emoji Text Translator | games | en zh hi es fr ar bn pt ru ur |
| Energy Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Currency Exchange Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Currency Exchange Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Exponent Calculator | math | en zh hi es fr ar bn pt ru ur |
| Factorial Calculator | math | en zh hi es fr ar bn pt ru ur |
| Fibonacci Sequence Generator | math | en zh hi es fr ar bn pt ru ur |
| ASL Finger Spelling | games | en zh hi es fr ar bn pt ru ur |
| Flashcard Maker | productivity | en zh hi es fr ar bn pt ru ur |
| Focus Mode Writing Tool | productivity | en zh hi es fr ar bn pt ru ur |
| Font Properties Preview | design | en zh hi es fr ar bn pt ru ur |
| Font Pair Preview | design | en zh hi es fr ar bn pt ru ur |
| Food Calorie Reference | health | en zh hi es fr ar bn pt ru ur |
| Fraction Calculator | math | en zh hi es fr ar bn pt ru ur |
| Fraction to Decimal Converter | math | en zh hi es fr ar bn pt ru ur |
| Frequency Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Fuel Cost Calculator | finance | en zh hi es fr ar bn pt ru ur |
| GCD Calculator | math | en zh hi es fr ar bn pt ru ur |
| GPA Calculator | education | en zh hi es fr ar bn pt ru ur |
| CSS Gradient Generator | utility | en zh hi es fr ar bn pt ru ur |
| Gravitational Force Calculator | science | en zh hi es fr ar bn pt ru ur |
| Habit Tracker | productivity | en zh hi es fr ar bn pt ru ur |
| Hangman | games | en zh hi es fr ar bn pt ru ur |
| Hash Generator | dev | en zh hi es fr ar bn pt ru ur |
| Heart Rate Zone Calculator | health | en zh hi es fr ar bn pt ru ur |
| Hours & Pay Calculator | finance | en zh hi es fr ar bn pt ru ur |
| HTML Beautifier | dev | en zh hi es fr ar bn pt ru ur |
| HTML Encoder / Decoder | utility | en zh hi es fr ar bn pt ru ur |
| HTTP Status Code Reference | dev | en zh hi es fr ar bn pt ru ur |
| Daily Water Intake Calculator | health | en zh hi es fr ar bn pt ru ur |
| Ideal Gas Law Calculator | science | en zh hi es fr ar bn pt ru ur |
| Ideal Weight Calculator | health | en zh hi es fr ar bn pt ru ur |
| Image Color Picker | design | en zh hi es fr ar bn pt ru ur |
| Inflation Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Investment Return Calculator | finance | en zh hi es fr ar bn pt ru ur |
| My IP Address & Info | utility | en zh hi es fr ar bn pt ru ur |
| JSON Formatter & Validator | dev | en zh hi es fr ar bn pt ru ur |
| JSON Minifier & Formatter | dev | en zh hi es fr ar bn pt ru ur |
| JSON Path Tester | dev | en zh hi es fr ar bn pt ru ur |
| JSON to CSV Converter | dev | en zh hi es fr ar bn pt ru ur |
| JWT Decoder | dev | en zh hi es fr ar bn pt ru ur |
| Keyboard Shortcut Reference | productivity | en zh hi es fr ar bn pt ru ur |
| Kinematic Equations Solver | science | en zh hi es fr ar bn pt ru ur |
| Stopwatch with Laps | time | en zh hi es fr ar bn pt ru ur |
| LCM Calculator | math | en zh hi es fr ar bn pt ru ur |
| Leap Year Calculator | time | en zh hi es fr ar bn pt ru ur |
| Light Year Calculator | science | en zh hi es fr ar bn pt ru ur |
| Loan Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Logarithm Calculator | math | en zh hi es fr ar bn pt ru ur |
| Lorem Ipsum Generator | text | en zh hi es fr ar bn pt ru ur |
| Love Compatibility Calculator | games | en zh hi es fr ar bn pt ru ur |
| Lucky Number Generator | games | en zh hi es fr ar bn pt ru ur |
| Macronutrient Calculator | health | en zh hi es fr ar bn pt ru ur |
| Macro Ratio Calculator | health | en zh hi es fr ar bn pt ru ur |
| Magic 8 Ball | games | en zh hi es fr ar bn pt ru ur |
| Markdown to HTML Converter | dev | en zh hi es fr ar bn pt ru ur |
| Markdown Preview | dev | en zh hi es fr ar bn pt ru ur |
| Matrix Calculator | math | en zh hi es fr ar bn pt ru ur |
| Meeting Cost Calculator | productivity | en zh hi es fr ar bn pt ru ur |
| Memory Card Game | games | en zh hi es fr ar bn pt ru ur |
| Molar Mass Calculator | science | en zh hi es fr ar bn pt ru ur |
| Morse Code Trainer | games | en zh hi es fr ar bn pt ru ur |
| Morse Code Translator | text | en zh hi es fr ar bn pt ru ur |
| Mortgage Affordability Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Multiplication Table Generator | education | en zh hi es fr ar bn pt ru ur |
| Name Day Lookup | games | en zh hi es fr ar bn pt ru ur |
| NATO Phonetic Alphabet | utility | en zh hi es fr ar bn pt ru ur |
| Network Speed Calculator | utility | en zh hi es fr ar bn pt ru ur |
| Net Worth Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Newton's Second Law Calculator (F = ma) | science | en zh hi es fr ar bn pt ru ur |
| Online Notepad | productivity | en zh hi es fr ar bn pt ru ur |
| Net Present Value (NPV) Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Number Base Converter | math | en zh hi es fr ar bn pt ru ur |
| Number Guessing Game | games | en zh hi es fr ar bn pt ru ur |
| Number to Words Converter | utility | en zh hi es fr ar bn pt ru ur |
| Numerology Name Number | games | en zh hi es fr ar bn pt ru ur |
| Octal Number Converter | math | en zh hi es fr ar bn pt ru ur |
| Ohm's Law Calculator | science | en zh hi es fr ar bn pt ru ur |
| Ovulation Calculator | health | en zh hi es fr ar bn pt ru ur |
| Running Pace Calculator | health | en zh hi es fr ar bn pt ru ur |
| Paint Calculator | home | en zh hi es fr ar bn pt ru ur |
| Color Palette Generator | design | en zh hi es fr ar bn pt ru ur |
| Palindrome Checker | text | en zh hi es fr ar bn pt ru ur |
| Passphrase Generator | utility | en zh hi es fr ar bn pt ru ur |
| Password Generator | security | en zh hi es fr ar bn pt ru ur |
| Password Strength Analyzer | security | en zh hi es fr ar bn pt ru ur |
| Percentage Calculator | math | en zh hi es fr ar bn pt ru ur |
| Percentage Change Calculator | math | en zh hi es fr ar bn pt ru ur |
| Periodic Table Reference | science | en zh hi es fr ar bn pt ru ur |
| pH Calculator | science | en zh hi es fr ar bn pt ru ur |
| Pomodoro Timer | time | en zh hi es fr ar bn pt ru ur |
| Pomodoro Timer Pro | productivity | en zh hi es fr ar bn pt ru ur |
| Pregnancy Week Calculator | health | en zh hi es fr ar bn pt ru ur |
| Pressure Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Prime Number Checker | math | en zh hi es fr ar bn pt ru ur |
| Prime Factorization Calculator | math | en zh hi es fr ar bn pt ru ur |
| Pythagorean Theorem Calculator | math | en zh hi es fr ar bn pt ru ur |
| QR Code Generator | social | en zh hi es fr ar bn pt ru ur |
| QR Code Reader | utility | en zh hi es fr ar bn pt ru ur |
| Quadratic Equation Solver | math | en zh hi es fr ar bn pt ru ur |
| Random Color Generator | utility | en zh hi es fr ar bn pt ru ur |
| Random Fact Generator | games | en zh hi es fr ar bn pt ru ur |
| Random Letter Generator | random | en zh hi es fr ar bn pt ru ur |
| Random Name Generator | random | en zh hi es fr ar bn pt ru ur |
| Random Number Generator | random | en zh hi es fr ar bn pt ru ur |
| Random Quote Generator | games | en zh hi es fr ar bn pt ru ur |
| Ratio Simplifier | math | en zh hi es fr ar bn pt ru ur |
| Reading Speed Test | productivity | en zh hi es fr ar bn pt ru ur |
| Reading Time Calculator | text | en zh hi es fr ar bn pt ru ur |
| Regex Cheat Sheet | dev | en zh hi es fr ar bn pt ru ur |
| Regular Expression Tester | dev | en zh hi es fr ar bn pt ru ur |
| Resistor Color Code Calculator | science | en zh hi es fr ar bn pt ru ur |
| Retirement Savings Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Rhyme Finder | games | en zh hi es fr ar bn pt ru ur |
| Rock Paper Scissors | games | en zh hi es fr ar bn pt ru ur |
| Dice Roller | random | en zh hi es fr ar bn pt ru ur |
| Roman Numeral Converter | math | en zh hi es fr ar bn pt ru ur |
| Roman Numeral Converter | math | en zh hi es fr ar bn pt ru ur |
| ROT13 Encoder / Decoder | utility | en zh hi es fr ar bn pt ru ur |
| Rounding Calculator | math | en zh hi es fr ar bn pt ru ur |
| Rule of 72 Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Sales Tax Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Savings Goal Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Scientific Calculator | math | en zh hi es fr ar bn pt ru ur |
| Scientific Notation Converter | science | en zh hi es fr ar bn pt ru ur |
| Screen Resolution Checker | utility | en zh hi es fr ar bn pt ru ur |
| Flag Semaphore Encoder | games | en zh hi es fr ar bn pt ru ur |
| Sentence Counter | text | en zh hi es fr ar bn pt ru ur |
| Sleep Cycle Calculator | health | en zh hi es fr ar bn pt ru ur |
| URL Slug Generator | dev | en zh hi es fr ar bn pt ru ur |
| Speed Converter | science | en zh hi es fr ar bn pt ru ur |
| Square Root Calculator | math | en zh hi es fr ar bn pt ru ur |
| Statistics Calculator | math | en zh hi es fr ar bn pt ru ur |
| Statistics Visualizer | math | en zh hi es fr ar bn pt ru ur |
| Stock Return Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Stopwatch | time | en zh hi es fr ar bn pt ru ur |
| Data Storage Converter | converter | en zh hi es fr ar bn pt ru ur |
| Study Planner | productivity | en zh hi es fr ar bn pt ru ur |
| Sunrise and Sunset Estimator | utility | en zh hi es fr ar bn pt ru ur |
| Syllable Counter | text | en zh hi es fr ar bn pt ru ur |
| Random Team Generator | productivity | en zh hi es fr ar bn pt ru ur |
| Temperature Converter | science | en zh hi es fr ar bn pt ru ur |
| Temperature Converter | science | en zh hi es fr ar bn pt ru ur |
| Test Grade Calculator | education | en zh hi es fr ar bn pt ru ur |
| Text Diff Tool | text | en zh hi es fr ar bn pt ru ur |
| Text Encoder and Decoder | dev | en zh hi es fr ar bn pt ru ur |
| Text Repeater | text | en zh hi es fr ar bn pt ru ur |
| Text Reverser | text | en zh hi es fr ar bn pt ru ur |
| Text Summarizer | text | en zh hi es fr ar bn pt ru ur |
| Text to Binary Converter | utility | en zh hi es fr ar bn pt ru ur |
| This or That | games | en zh hi es fr ar bn pt ru ur |
| Tic-Tac-Toe | games | en zh hi es fr ar bn pt ru ur |
| TikTok Caption Analyzer | social | en zh hi es fr ar bn pt ru ur |
| Time Calculator | time | en zh hi es fr ar bn pt ru ur |
| Time Zone Converter | time | en zh hi es fr ar bn pt ru ur |
| Time Zone Difference Calculator | time | en zh hi es fr ar bn pt ru ur |
| Tip Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Tipping Guide by Country | finance | en zh hi es fr ar bn pt ru ur |
| Tip and Bill Split Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Title Case Converter | text | en zh hi es fr ar bn pt ru ur |
| To-Do List | productivity | en zh hi es fr ar bn pt ru ur |
| Trigonometry Calculator | math | en zh hi es fr ar bn pt ru ur |
| General Knowledge Trivia Quiz | games | en zh hi es fr ar bn pt ru ur |
| Twitter / X Character Counter | social | en zh hi es fr ar bn pt ru ur |
| Typing Speed Test | productivity | en zh hi es fr ar bn pt ru ur |
| Unit Converter | math | en zh hi es fr ar bn pt ru ur |
| Extended Unit Converter | utility | en zh hi es fr ar bn pt ru ur |
| Unix Timestamp Converter | time | en zh hi es fr ar bn pt ru ur |
| Unix File Permissions Calculator | dev | en zh hi es fr ar bn pt ru ur |
| Upside Down Text Generator | text | en zh hi es fr ar bn pt ru ur |
| URL Encoder / Decoder | utility | en zh hi es fr ar bn pt ru ur |
| UTM Link Builder | social | en zh hi es fr ar bn pt ru ur |
| UUID Generator | dev | en zh hi es fr ar bn pt ru ur |
| VAT Calculator | finance | en zh hi es fr ar bn pt ru ur |
| Vitamin D Sun Exposure Calculator | health | en zh hi es fr ar bn pt ru ur |
| Volume Unit Converter | converter | en zh hi es fr ar bn pt ru ur |
| Daily Water Intake Calculator | health | en zh hi es fr ar bn pt ru ur |
| Wave Properties Calculator | science | en zh hi es fr ar bn pt ru ur |
| Week Number | time | en zh hi es fr ar bn pt ru ur |
| Wheel Spinner | games | en zh hi es fr ar bn pt ru ur |
| Word Counter | text | en zh hi es fr ar bn pt ru ur |
| Word Frequency Counter | text | en zh hi es fr ar bn pt ru ur |
| Word Scramble Game | games | en zh hi es fr ar bn pt ru ur |
| Work Days Calculator | time | en zh hi es fr ar bn pt ru ur |
| World Clock | time | en zh hi es fr ar bn pt ru ur |
| Would You Rather? | games | en zh hi es fr ar bn pt ru ur |
| Yes or No | random | en zh hi es fr ar bn pt ru ur |
| Zodiac Sign Calculator | games | en zh hi es fr ar bn pt ru ur |