⊞ All Tools
Free, instant, no sign-up. Pick a tool.
Coin Flip
Flip a fair coin. Heads or tails.
Dice Roller
Roll up to 10 dice of any type.
Random Number
Pick a random number in any range.
Password Gen
Strong, random passwords. Customisable.
Word Counter
Words, characters, sentences, reading time.
Lorem Ipsum
Generate placeholder text instantly.
Case Converter
Upper, lower, title, camel, snake case.
UUID Generator
Generate UUID v4 identifiers.
Base64
Encode or decode Base64 strings.
Color Picker
Convert between HEX, RGB, and HSL.
CSS Gradient
Build and copy CSS gradient code.
Timer
Countdown timer and stopwatch.
JSON Formatter
Format, minify, and validate JSON.
Number Base
Convert bin, oct, dec, and hex.
Hash Generator
SHA-1, SHA-256, and SHA-512 hashes.
URL Encode
Encode or decode URL components.
Regex Tester
Test patterns and see live matches.
Unit Converter
Length, weight, and temperature.
Tic-Tac-Toe
Play against a smart computer.
Rock Paper Scissors
Best of luck against the bot.
Memory Match
Flip and match all the pairs.
Snake
Classic snake. Don't bite yourself.
2048
Slide tiles, reach 2048.
Guess the Number
Find the secret number in few tries.
Markdown Preview
Live Markdown to HTML rendering.
Text Tools
Sort, dedupe, trim, and clean lines.
JWT Decoder
Decode JWT header and payload.
Diff Checker
Compare two texts line by line.
Unix Timestamp
Convert epoch ↔ human date.
Contrast Checker
WCAG color contrast ratios.
Connect Four
Drop discs, beat the computer.
Minesweeper
Clear the board without a boom.
Simon
Repeat the growing color sequence.
Hangman
Guess the word before you're out.
Sliding Puzzle
Order the tiles, 15-puzzle style.
Whack-a-Mole
Bonk the moles before time runs out.
Tip Calculator
Tip and split the bill in seconds.
Percentage
Percent of, change, and ratios.
BMI Calculator
Body mass index, metric or imperial.
Date Difference
Days, weeks, and months between dates.
Binary ↔ Text
Convert text to binary and back.
Box Shadow
Design a CSS box-shadow visually.
Reaction Time
Test how fast your reflexes are.
Word Scramble
Unscramble the jumbled word.
Lights Out
Turn off every light to win.
Breakout
Bounce the ball, smash the bricks.
Tower of Hanoi
Move the stack, one disc at a time.
Higher or Lower
Guess if the next card is higher.
🪙 Coin Flip
Click the coin or the button to flip.
🎲 Dice Roller
Choose your dice and roll.
# Random Number
Generate a random number in a range.
🔑 Password Generator
Strong, random passwords you can trust.
📝 Word Counter
Paste or type your text below.
¶ Lorem Ipsum Generator
Placeholder text for mockups and designs.
Aa Case Converter
Convert text to any case instantly.
⬡ UUID Generator
Cryptographically random UUIDs (v4).
⇄ Base64 Encoder / Decoder
Encode or decode Base64 strings.
🎨 Color Picker
Convert between HEX, RGB, and HSL.
◐ CSS Gradient Generator
Build a gradient and copy the CSS.
⏱ Timer
Countdown timer and stopwatch.
{ } JSON Formatter
Format, minify, and validate JSON.
01 Number Base Converter
Convert between binary, octal, decimal, and hex.
#️⃣ Hash Generator
SHA-1, SHA-256, and SHA-512 — computed in your browser.
🔗 URL Encoder / Decoder
Encode or decode URL components.
.* Regex Tester
Test a pattern against text with live highlighting.
📐 Unit Converter
Length, weight, and temperature.
⭕ Tic-Tac-Toe
You're X. Beat the computer if you can.
✊ Rock Paper Scissors
Pick your weapon.
🧠 Memory Match
Flip cards and find all 8 pairs.
🐍 Snake
Arrow keys or WASD on desktop, swipe on mobile.
🔢 2048
Arrow keys or WASD on desktop, swipe on mobile.
🎯 Guess the Number
I'm thinking of a number from 1 to 100.
M↓ Markdown Preview
Type Markdown, see it rendered live.
≡ Text Tools
Clean up and transform lines of text.
🔓 JWT Decoder
Decode a JSON Web Token. Decoding only — signature is not verified.
± Diff Checker
Compare two blocks of text line by line.
🕐 Unix Timestamp Converter
Convert between epoch seconds and human dates.
◑ Contrast Checker
Check WCAG color contrast for accessibility.
🔴 Connect Four
You're red. Drop a disc into any column.
💣 Minesweeper
Click to reveal, click the flag button then a cell to mark a mine.
🎵 Simon
Watch the sequence, then repeat it. It grows each round.
🔤 Hangman
Guess the hidden word one letter at a time.
🧩 Sliding Puzzle
Slide tiles to order them 1–15. Click a tile next to the gap.
🔨 Whack-a-Mole
Tap the moles as they pop up. 30 seconds on the clock.
💵 Tip Calculator
Work out the tip and split the bill.
% Percentage Calculator
Three common percentage questions.
⚖️ BMI Calculator
Body mass index for adults.
📅 Date Difference
Count the time between two dates.
10 Binary ↔ Text
Convert text to binary (8-bit) and back.
▦ Box Shadow Generator
Design a CSS box-shadow and copy the code.
⚡ Reaction Time
Wait for green, then click as fast as you can.
🔀 Word Scramble
Rearrange the letters to find the word.
💡 Lights Out
Click a tile to toggle it and its neighbors. Turn them all off.
🧱 Breakout
Move with the mouse, arrow keys, or by dragging.
🗼 Tower of Hanoi
Move the whole stack to another peg. Click a peg to pick up, click another to drop.
🃏 Higher or Lower
Will the next card be higher or lower? Aces are high.