All tools 498
Measure 11
PDF & documents 22
- ID & Passport Photo Maker
- Signature Image Maker
- Barcode Generator
- Free QR Code Generator — Wi-Fi & vCard
- Merge & Split PDF — extract pages online
- Images to PDF
- Rotate & Reorder PDF Pages
- PDF to Image
- ZIP & Unzip
- Image to Text (OCR)
- CSV, JSON & Table Converter
- Barcode & QR Code Reader
- Business Card Maker
- Printable Calendar Maker
- Certificate Maker
- Invitation & Card Maker
- Add Page Numbers to PDF
- Add Watermark to PDF
- Sign PDF
- Compress PDF
- Label Printing (Address Labels)
- Name Tag & Name Plate Maker
Images 16
- Image Converter
- Crop & Resize Image
- Blur & Pixelate Image
- Remove Photo Location & EXIF
- Add Watermark to Photos
- GIF Maker
- Image Color Picker & Palette
- Image Compressor — JPG, PNG and WebP
- Photo Stitcher
- Color Palette & Gradient Generator
- Meme Maker (Text on Photo)
- Circle Crop for Profile Pictures
- Word Cloud Generator
- Pixel Art Maker
- Photo Booth Strip Maker
- Photo Collage & Image Joiner
Text 16
- Word Counter & Character Count Tool
- Text Compare (Diff)
- Line Tools
- Case Converter
- Symbols & Special Characters
- Fancy Text Generator
- Text to Speech
- Markdown Preview
- Words to Pages Converter
- Readability Checker
- Word Frequency Counter
- Speech & Reading Time Calculator
- Notepad
- Instagram Line Break & Invisible Character
- Emoji & Kaomoji Finder
- Voice Typing (Speech to Text)
Units & math 25
- Triangle & Angle Calculator
- Function Grapher
- Percentage & Percent Change Calculator
- Unit Converter — Length, Weight & Temp
- Discount Calculator
- Fraction Calculator
- Area & Volume Calculator
- Proportion & Ratio Calculator
- Scientific Calculator
- Matrix Calculator
- Permutation & Combination Calculator
- Derivative Calculator
- Integral Calculator
- Quadratic Formula Calculator
- System of Equations Solver
- Slope, Distance & Midpoint Calculator
- Factoring Calculator
- GCF & LCM Calculator
- Prime Factorization Calculator
- Long Division Calculator
- Rounding Calculator
- Unit Circle & Trig Values
- Scientific Notation Converter
- Roman Numeral Converter
- Linear Interpolation Calculator
Date & time 10
Money & business 11
Loans, savings & home 20
- Home Affordability Calculator
- Rent Affordability Calculator
- Rent vs Buy Calculator
- Refinance Break-Even Calculator
- Auto Loan Calculator
- Credit Card Payoff Calculator
- Student Loan Repayment Calculator
- Compound Interest Calculator
- 401(k) Calculator
- Savings Goal Calculator
- Loan Calculator — payment and interest
- Savings & Deposit Interest Calculator
- Mortgage Calculator
- Average Down Calculator (Average Cost)
- Return & Profit Calculator
- Prorated Rent Calculator
- Rental Yield Calculator
- Loan Prepayment Penalty Calculator
- Debt-to-Income (DTI) Calculator
- Rent Split Calculator
Work 12
Everyday 18
- Fuel Cost Calculator
- Fuel Economy Calculator
- Sleep Calculator
- BMI Calculator with BMR & TDEE
- Height & Weight Converter
- Clothing & Shoe Size Converter
- Feedback, Requests & Questions
- Running Pace Calculator
- One-Rep Max (1RM) Calculator
- Exercise Calorie Calculator
- Simple Budget Tracker
- Daily Water Intake Calculator
- Travel Packing List Generator
- Dog & Cat Age Calculator
- To-Do List
- Habit Tracker
- Moving Checklist
- Moving Box & Truck Size Calculator
Travel 10
Cars & transport 12
- Tire Size Calculator
- RPM & Gear Speed Calculator
- Drive Time Calculator
- Bike Size Calculator
- Car Lease Calculator
- Lease vs Buy Car Calculator
- Car Depreciation Calculator
- Car Cost of Ownership Calculator
- EV Charging Time & Cost Calculator
- Electric vs Gas Car Cost Calculator
- Parking Fee Calculator
- Car Log (Fuel & Maintenance)
Fortune & personality 13
- Daily Horoscope & Fortune
- Birthstone, Birth Flower & Zodiac Finder
- Blood Type Personality & Inheritance
- IQ-style Brain Test
- Dream Dictionary
- Palm Reading Guide
- Zodiac Compatibility
- Name Compatibility Test
- 16 Personality Types Test
- Fun Personality Quizzes
- Four Pillars (Saju / BaZi) Calculator
- Biorhythm Calculator
- Tarot Card Reading
Pickers & groups 13
- Random Name Picker
- Random Team Generator
- Ladder Lottery (Ghost Leg)
- Dice Roller
- Coin Flip
- Lottery & Powerball Number Generator
- Password Generator — random & passphrase
- Wheel Spinner
- Ideal Type World Cup Maker
- Would You Rather & Truth Questions
- Liar Game (Odd One Out) Word Dealer
- What Should I Eat? Meal Picker
- Nickname & Username Generator
Tests & games 49
- 2048
- Sudoku
- Minesweeper
- Memory Card Match
- Two-Player Games (Tic-Tac-Toe, Gomoku, Connect Four)
- Typing Speed Test
- Reaction Time Test
- Click Speed Test (CPS)
- Memory Test
- Colour Difference Test
- Cube Timer and Scrambler
- Magic Square Maker and Solver
- Snake Cube Solver (3D)
- Pyraminx Solver
- Maze Solver from a Photo
- IQ Puzzler Pro / Kanoodle Solver
- Kakuro Solver
- KenKen / Calcudoku Solver
- Killer Sudoku Solver
- Numberlink Solver
- Rush Hour Puzzle Solver (Unblock Me / parking puzzle)
- Chess
- Checkers (Draughts)
- Reversi
- Sea Battle
- Dots and Boxes
- Yut Nori (Korean Board Game)
- Solitaire (Klondike)
- FreeCell
- Spider Solitaire
- Snake Game
- Falling Blocks Puzzle
- Brick Breaker
- Pong
- Space Shooter
- Bubble Shooter
- Nonogram Puzzles
- 15 Puzzle Solver & Sliding Puzzle
- Lights Out Puzzle
- Tower of Hanoi
- Peg Solitaire Solver & Game (triangle, English, European)
- Hangman
- Bulls and Cows (Number Guessing)
- Mahjong Solitaire
- Rubik's Cube Solver from Photo (2×2–4×4)
- Soma Cube Solver (3D step by step)
- Pentomino Puzzle Solver
- Tangram Puzzles with Solutions
- Sudoku Solver with Hints (scan from photo)
Classroom 41
- 3D Shape Nets
- Classroom Origami
- Classroom Noise Meter
- Scoreboard
- Random Seating Chart
- Teaching Clock
- Fraction Bars & Circles
- Bingo Card Generator
- Word Search Maker
- Math Worksheet Generator
- Handwriting Tracing Worksheets
- Printable Graph, Lined & Music Paper
- EZ Grader (Grade Calculator for Teachers)
- Classroom Timer
- Times Tables & Mental Math Practice
- Venn Diagram Maker
- Online Whiteboard
- Reward Coupon & Classroom Money Maker
- Quiz Show Board Maker
- Classroom Screen Dashboard
- Test Score Analysis
- Crossword Puzzle Maker
- Word Scramble Maker
- Matching Worksheet Maker
- Telling Time Worksheet Generator
- Number Line Generator
- Class Roster & Checklist Maker
- Classroom Jobs & Duty Rotation Chart
- Test & Quiz Maker (Printable)
- Bubble Answer Sheet Maker
- Rubric Maker
- Debate Timer
- Cryptogram Puzzle Maker
- Spelling Test Maker
- Money Counting Worksheet Generator
- Parent-Teacher Conference Scheduler
- Equation Worksheet Maker (Linear · Quadratic · Cubic · Quartic)
- Calculus Worksheet Maker (Derivatives · Integrals)
- Picture Addition & Subtraction Worksheets
- Base Ten Blocks — Carrying and Borrowing Visualized
- Fraction Visualizer — Why Flip and Multiply?
Students 24
- Cornell Notes Template
- Equation Editor
- Group Meeting Time Finder
- GPA & Grade Scale Converter
- Timetable Maker
- Attendance & Absence Calculator
- Table to LaTeX & Markdown
- Flashcards
- Fill-in-the-Blank Study Tool
- Study Time Tracker
- Study Planner
- Grade Calculator (Weighted)
- Elevator Pitch Practice
- Ticket Drop Click Practice
- Essay Outline Builder
- GPA Calculator
- Final Grade Calculator
- Citation Generator (APA, MLA, Chicago)
- English Vocabulary Quiz
- Mind Map Maker
- Flag Quiz & Capitals Quiz
- English Irregular Verbs List & Quiz
- Function Grapher & Equation Visualizer
- Equation Solver with Steps
Language learning 6
Research & statistics 15
- Scale Bar Measurement Tool
- Graph Data Extractor
- Image Click Counter
- Error Propagation & Significant Figures Calculator
- Molarity & Dilution Calculator
- Multi-Timer for the Lab
- Molar Mass Calculator
- Periodic Table
- Physical Constants
- Statistics Calculator
- Chart Maker
- Probability Distribution Calculator
- Sample Size Calculator
- Chemical Equation Balancer
- Curve Fitting Calculator
Manufacturing & quality 15
- Number Generator
- Process Capability Calculator (Cp, Cpk)
- Control Chart Maker
- Defect Rate, PPM & Sigma Level Converter
- OEE Calculator
- Takt Time Calculator
- Tolerance Stack-Up Calculator
- Bolt Circle Calculator (PCD)
- AQL Sampling Table
- Limits & Fits Calculator (ISO 286)
- Hardness Conversion
- Metal Weight Calculator
- Fishbone Diagram Maker
- EOQ Calculator (Economic Order Quantity)
- Gage R&R Calculator
Mechanical & electronics 19
- Resistor Color Code Calculator
- Ohm's Law Calculator
- Series & Parallel Resistor Calculator
- Voltage Divider Calculator
- LED Resistor Calculator
- RC Time Constant & Filter Cutoff Calculator
- Decibel Calculator (dB, dBm, Watts)
- Drill Size Chart & Tap Drill Chart
- Sheet Metal Gauge Chart
- Scale Calculator
- Gear Ratio Calculator
- Pulley & Belt Length Calculator
- Speeds and Feeds Calculator
- Battery Life Calculator
- 555 Timer Calculator
- Flow Rate & Pipe Velocity Calculator
- Sheet Metal Bend Allowance Calculator
- O-Ring Size Chart
- Bearing Size Chart
Home improvement 8
Cooking 18
- Cooking Timer
- Cooking Measurement Converter
- Baker's Percentage Calculator
- Sourdough Calculator
- Pizza Dough Calculator
- Yeast Converter
- Recipe Scaler
- Cake Pan Size Converter
- Oven to Air Fryer Converter
- Rice to Water Ratio Calculator
- Coffee to Water Ratio Calculator
- Brine & Salt Concentration Calculator
- Simple Syrup & Fruit Syrup Ratio Calculator
- Mixed Drink ABV Calculator
- Macro Calculator
- Party Food Quantity Calculator
- Weekly Meal Planner
- World Dishes
Parenting 23
- Child Growth Percentile Calculator
- Baby Age & Milestone Dates Calculator
- Due Date & Pregnancy Week Calculator
- Baby Feeding, Sleep & Diaper Log
- Baby Food Batch & Portion Calculator
- Kids' Shoe & Clothing Size Calculator
- Name Picker Tournament
- Baby Cost Calculator
- Reward Chart Maker
- Chore Chart & Routine Chart Maker
- Visual Timer for Kids
- Printable Mazes & Dot-to-Dots
- School Year Calculator
- Child Height Predictor
- Chinese Gender Predictor
- Hospital Bag & Newborn Checklist
- Ovulation Calculator
- Period Calculator
- Contraction Timer
- Adjusted Age Calculator
- Photo to Coloring Page Converter
- Dot-to-Dot Puzzle Maker
- Maze Generator (printable mazes for kids)
Developers 16
- JSON Formatter & Validator
- Regex Tester
- Base64 & URL Encoder/Decoder
- JWT Decoder
- Unix Timestamp Converter
- UUID & Hash Generator
- Color Code Converter
- Truth Table Generator
- Number Base Converter (Binary, Hex, Decimal)
- IP Subnet Calculator (CIDR)
- Chmod Calculator
- Cron Expression Generator & Explainer
- XML Formatter & Validator
- SQL Formatter
- YAML Validator & YAML ↔ JSON Converter
- CRC Calculator
Device tests 6
Sound & screen 8
Music 11
Design 9
- Color Contrast Checker (WCAG)
- Color Blindness Simulator (image & palette)
- CSS Gradient Generator (layers, repeating)
- CSS Shadow Generator (box-shadow, text-shadow)
- Type Scale Generator (Font Size System)
- Layout Grid Calculator (Columns, Gutters, 8pt Grid)
- Favicon & App Icon Generator (PNG, ICO, manifest)
- SVG Optimizer (Clean Up & Shrink SVG Files)
- Print Size & DPI Calculator (px, pt, mm, inch, bleed)
Crafts & handwriting 8
Mechanical design 13
- Motor Sizing Calculator (Torque & Inertia)
- Pneumatic Cylinder Force & Air Consumption Calculator
- GD&T Symbols Explained (Geometric Tolerances)
- Linear Guide & Ball Screw Life Calculator
- Bolt Torque Calculator
- Thread Size Chart — pitch, pitch diameter, tap drill
- Compression Spring Calculator
- Shrink Fit Temperature Calculator
- Surface Roughness Chart — Ra, Rz, Rmax, N grades
- Beam Deflection Calculator
- Section Properties Calculator
- Shaft Strength Calculator
- Engineering Materials Table