Developer tools

JSON formatters, encoders, and coding helpers.

JSON Formatter & Validator
Format, minify, and validate JSON with clear error messages.
Base64 Encode / Decode
Encode and decode Base64 strings instantly in your browser.
URL Encode / Decode
Encode and decode URL strings and query parameters.
Binary to Text Converter
Convert text to 8-bit binary and binary back to text.
Unicode Converter
Convert text to Unicode code points and code points back to text.
Color Converter
Pick or type a color in HEX, RGB, HSL, or RGBA and convert between all formats instantly.
Markdown Previewer
Type Markdown on the left and see a live HTML preview on the right.
QR Code Generator
Type or paste any text or URL and get an instant QR code with PNG download.