Developer Tools
JSON, encoding, JWT, regex, UUIDs, and other utilities for builders.
JSON Editor
Edit, format, repair, query, compare, and explore JSON in text, tree, and table modes.
JSON Formatter
Format, minify, and validate JSON in your browser.
JSON Validator
Check whether your JSON is valid and locate errors.
Base64 Encoder / Decoder
Encode and decode Base64 text locally.
URL Encoder / Decoder
Percent-encode and decode URL components.
UUID Generator
Generate one or many UUID v4 identifiers.
JWT Decoder / Generator
Decode or generate JWTs locally — secrets never leave your browser.
Regex Tester
Test regular expressions against sample text.