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Games26
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Reaction & Speed 5
All Reaction & Speed games Reaction Time Test Click Speed Test Spacebar Counter Right-Click Speed Test Coordinate Drift
Memory 6
All Memory games Sequence Memory Number Sequence Memory N-Back Memory Number Mirror Symmetry Blocks Color Block Recall
Visual 6
All Visual games Color Shade Test Dynamic Color Test Visual Tracking Dynamic Visual Acuity Mirror Rush Find the Different Word
Focus & Attention 3
All Focus & Attention games Schulte Grid Stroop Test Time Perception Test
Logic & Puzzle 6
All Logic & Puzzle games Sliding Number Puzzle Sudoku Water Sort Puzzle 2048 Lights Out Matchstick Math
Tools118
All tools
Health 15
All Health tools BMI Calculator BMR Calculator Ideal Weight Calculator Body Fat Calculator Fat-Burning Heart Rate Protein Intake Calculator Energy Converter Running Calorie Calculator Physical Fitness Test Best Figure Calculator Safe Period Calculator Child Height Predictor Blood Type Calculator Color Blindness Test Vegetable Oil Comparison
Life 15
All Life tools World Capitals Flags of the World Age Calculator Retirement Calculator Loan Calculator Bra Size Calculator Women’s Underwear Size Dress Size Calculator Women’s Clothing Size Women’s Shirt Size Children’s Clothing Size Men’s Clothing Size Men’s Pant Size VAT / GST Calculator Age Difference Calculator
Generators 7
All Generators tools Random Number Generator Random Password Generator Serial Number Generator QR Code Generator Bar Code Generator UUID Generator Color Palette Generator
Developer 24
All Developer tools Base Converter Timestamp Converter Base64 Encoder / Decoder URL Encoder / Decoder Unicode Encoder / Decoder Text to ASCII Converter Image to Base64 Compare Text Markdown Editor MD5 Hash Generator SHA Hash Generator RIPEMD-160 Hash Generator HMAC Signature Generator AES Encrypt / Decrypt DES / TripleDES Encrypt Rabbit Encrypt / Decrypt RC4 Encrypt / Decrypt HTML Formatter CSS Formatter JavaScript Formatter JavaScript Obfuscator Local Port Checker CSV ⇄ JSON Converter JSON Formatter & Validator
Converters & Math 13
All Converters & Math tools Length Converter Weight Converter Temperature Converter Area Converter Volume Converter Proportion Calculator Perimeter Calculator Area Calculator Surface Area Calculator Volume Calculator Pi Digits Lookup Data Size Converter Percentage Calculator
Text & Office 19
All Text & Office tools Word Counter Case Converter Bold Text Generator Italic Text Generator Strikethrough Text Generator Underline Text Upside-Down Text Generator Mirror Text Generator Reverse Text Generator Emoji Collection Emoticon (Kaomoji) Symbols Collection Paper Size Chart Replace Text Resume Template Word Frequency Counter Lorem Ipsum Generator Duplicate Line Remover Text to Slug
Image 17
All Image tools Color Picker Image Format Converter Image Compressor Image Resizer Aspect Ratio Adjuster Image Rotator Image Cropper Image Watermark Rounded Corners Grid Image Cutter Transparent ICO Generator GIF Maker GIF Frame Extractor Video to GIF Image Color Picker Favicon Generator Image to Text (ASCII Art)
Just for Fun 8
All Just for Fun tools Morse Code Translator Lucky Wheel Lottery Picker Net Worth Calculator Life Odometer Lucky Number Zodiac Lucky Color Hash Avatar Generator

Contact

Found a bug, have an idea for a tool, or want something removed? Email us at [email protected].

What to write to us about

  • Bug reports — tell us the page, what you did and what happened.
  • Tool or game suggestions — we build what people actually use.
  • Content removal — see below.
  • Anything else — feedback and questions are welcome.

Removing your leaderboard or comment posts

Everything you submit (scores, comments) is voluntary and public. If you want a post removed, email us with:

  1. the page (or game) it appears on,
  2. the nickname you used, and
  3. roughly when you posted it.

We will remove the content as soon as we can after receiving your request.

Response time

We read every message and respond to removal requests and actionable reports as soon as practicable. Mindzook is a small project, so thanks for your patience.

Mindzook

Free mini games and handy tools that run entirely in your browser.

[email protected]

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