JSON Formatter — Format, validate, and minify JSON
Base64 Encode/Decode — Encode and decode Base64 strings
URL Encode/Decode — Encode and decode URL strings
Hash Generator — Generate MD5, SHA-1, SHA-256, SHA-512 hashes
UUID Generator — Generate random UUIDs (v4)
Unix Time Converter — Convert Unix timestamps to human-readable dates
JWT Debugger — Decode and inspect JWT tokens
RegExp Tester — Test and debug regular expressions
Color Converter — Convert between HEX, RGB, HSL color formats
Number Base Converter — Convert between binary, octal, decimal, hexadecimal
String Case Converter — Convert between camelCase, snake_case, kebab-case, and more
Line Sort/Dedupe — Sort lines and remove duplicates
HTML Formatter — Beautify and minify HTML
CSS Formatter — Beautify and minify CSS
JS Formatter — Beautify and minify JavaScript
SQL Formatter — Format SQL queries with syntax highlighting
YAML ↔ JSON — Convert between YAML and JSON formats
JSON ↔ CSV — Convert between JSON and CSV formats
Text Diff — Compare two texts and find differences
Markdown Preview — Live preview of markdown content
Cron Parser — Parse and explain cron expressions
URL Parser — Parse URL into components
HTML Entity Encode/Decode — Encode and decode HTML entities
Lorem Ipsum Generator — Generate placeholder text
Random String Generator — Generate random strings with custom charset
Hex ↔ ASCII — Convert between hex and ASCII strings
String Inspector — Analyze text statistics and character codes
XML Formatter — Beautify and minify XML
HTML → JSX — Convert HTML markup to React JSX
HTML Preview — Render HTML in a sandboxed preview
QR Code Generator — Generate QR codes from text or URLs
Backslash Escape/Unescape — Escape and unescape backslashes in strings
Certificate Decoder — Decode and inspect X.509 certificates
SVG → CSS — Convert SVG to CSS background-image
Base64 Image — Encode and preview Base64 images
cURL → Code — Convert cURL commands to fetch/Python code
JSON → Code — Generate TypeScript or Go types from JSON
PHP Serialize/Unserialize — Serialize and unserialize PHP data structures
ERB Formatter — Beautify ERB templates
LESS Formatter — Beautify LESS stylesheets
SCSS Formatter — Beautify SCSS stylesheets
ULID Generator — Generate and decode ULIDs
Query String ↔ JSON — Convert between query strings and JSON
Draw & Write — Sketch diagrams, notes, and whiteboards with Excalidraw — saved locally
To-Do List — Manage daily tasks with priorities — saved locally
Kanban Board — Organize work in columns with drag-and-drop — saved locally
Pomodoro Timer — Focus with timed work and break sessions — saved locally
Quick Notes — Capture ideas in a simple notepad — saved locally
Stopwatch — Track elapsed time with lap splits — saved locally
Habit Tracker — Build daily habits with a simple streak tracker — saved locally
Palette Generator — Generate beautiful colour palettes from a seed colour
Palette Collection — Browse a curated library of colour palettes
Palette Extractor — Extract a dominant colour palette from any image
Pixel Picker — Sample colours from any image with a zoom loupe
Colour Blindness Simulator — Simulate how colours appear to colour blind users
Contrast Checker — Check WCAG colour contrast compliance
Gradient Generator — Create linear, radial, conic, and mesh gradients
Harmony Generator — Generate complementary, triadic, and analogous colour harmonies
Tailwind Shade Generator — Generate a full Tailwind 50–950 colour scale from one colour
Image Editor — Crop, rotate, adjust and mark up images in the browser
Background Remover — Remove flat or chroma-key backgrounds from images
Artwork Enhancer — Add a colour noise and grain overlay to artwork
Favicon Generator — Generate a full favicon set from any image
Image Clipper — Trim transparent edges from PNGs to the smallest bounding box
Image Converter — Convert between PNG, JPEG, WebP, BMP and ICO with resize options
Image Splitter — Split an image into a grid of tiles
Image Stitcher — Combine multiple images into one horizontally or vertically
Image Tracer — Trace raster images into SVG vector paths
Paste Image — Paste an image from your clipboard and download it
Placeholder Generator — Generate placeholder images at any size
SVG Optimiser — Optimise and minify SVG files
Matte Generator — Put non-square images on a square matte for social posts
Seamless Scroll Generator — Split a wide image into a seamless Instagram carousel
Social Media Cropper — Crop images to Instagram, Bluesky, X and Threads presets
Watermarker — Add text or image watermarks to your images
Document Converter — Convert between Markdown, HTML, plain text and rich text
Font File Explorer — Inspect font file metadata, glyphs and OpenType features
Glyph Browser — Browse and copy Unicode glyphs by block
Large Type — Text, but big — for reading numbers across the room
Line Height Calculator — Calculate optimal line height from font size and measure
Paper Sizes — Reference for A, B, C, US and envelope paper dimensions
PX to REM — Convert between pixels, rem, em and percent
Text Editor — Distraction-free Markdown writer with live preview
Text Scratchpad — Scratch text with case, sort, dedupe and trim tools
Typography Calculator — Convert between points, picas, pixels, ems and millimetres
Word Counter — Count words, characters, sentences and reading time
Shavian Transliterator — Transliterate English text into the Shavian alphabet
PDF Preflight — Analyse PDFs for print-readiness issues
Print Imposer — Impose PDF pages for booklet, saddle-stitch and N-up printing
Zine Imposer — Impose single-sheet zines: 8-page mini-zine and accordion folds
Scientific Calculator — Full-featured scientific calculator with history
Graph Calculator — Plot and visualise mathematical functions
Algebra Calculator — Symbolic algebra: simplify, expand, solve and derive
Time Calculator — Date arithmetic, duration maths and timezone conversion
Unit Converter — Convert length, mass, area, volume, data, speed and temperature
Barcode Generator — Generate Data Matrix, Aztec, PDF417, Code 128, EAN-13 and more
Styled QR Generator — Generate styled QR codes with custom colours, shapes and a logo
Cipher Decoder — Decode classical ciphers manually or by auto-detection
Meta Tag Generator — Generate HTML meta, Open Graph and Twitter card tags
Tailwind Cheat Sheet — Searchable quick reference for Tailwind utility classes

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