Developer Tools
Format JSON, encode Base64, decode JWT, test regex, and more — built for everyday developer tasks.
Popular
JSON Formatter
Beautify JSON instantly
Developer Tools
JSON Validator
Check JSON validity
Developer Tools
JSON Minifier
Compact JSON output
Developer Tools
Base64 Encoder/Decoder
Encode and decode Base64
Developer Tools
URL Encoder/Decoder
Encode and decode URLs
Developer Tools
UUID Generator
Generate UUID v4
Developer Tools
JWT Decoder
Inspect JWT payloads
Developer Tools
Unix Timestamp Converter
Epoch ↔ date/time
Developer Tools
Regex Tester
Test regular expressions
Developer Tools
HTML/CSS/JS Formatter
Format HTML, CSS, and JS
Developer Tools