Developer Tools
Formatters, validators, encoders and generators.
JSON Formatter
Beautify, minify and inspect JSON with a collapsible tree view.
JSON Validator
Validate JSON and get the exact line, column and cause of any syntax error.
XML Formatter
Indent and tidy XML documents with attribute alignment.
HTML Formatter
Format HTML with consistent indentation and attribute wrapping.
CSS Formatter
Format CSS, SCSS, and LESS stylesheets with beautify and minify options for cleaner code or smaller file sizes.
JavaScript Formatter
Format JS, JSX, TS and TSX using the Prettier engine in your browser.
SQL Formatter
Format SQL for 12 dialects with keyword casing and indentation control.
Markdown Preview
Live side-by-side Markdown editor and sanitised HTML preview.
Regex Tester
Test regular expressions with live match highlighting, groups and replace preview.
JWT Decoder
Decode a JWT header, payload and expiry — and verify HS256 signatures locally.
JWT Generator
Sign a new HS256/HS384/HS512 JWT with custom claims using Web Crypto.
UUID Generator
Generate cryptographically random UUID v4 or time-ordered UUID v7 in bulk.
URL Encoder
Percent-encode text for safe use in URLs and query strings.
URL Decoder
Decode percent-encoded URLs into readable text, making encoded links and query parameters easier to understand.
Base64 Encoder
Encode text or files to Base64, with URL-safe alphabet support.
Base64 Decoder
Decode Base64 back to text or download it as the original binary file.
Hash Generator
Hash text or files with MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32.
Timestamp Converter
Convert Unix timestamps to human dates across time zones, and back.
Cron Expression Generator
Build cron expressions visually and read the next ten scheduled run times.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences, words or list items.
QR Code Generator
Create QR codes for URLs, Wi-Fi, vCards, email and SMS with logo support.
Barcode Generator
Generate EAN-13, UPC-A, Code 128, Code 39, ITF and more as PNG or SVG.