JSON Formatter & Validator
Beautify, minify, sort keys, and validate JSON payloads with line/column error diagnostics locally in your browser.
4.9
Open3 Tools Available
Developer & Code Utilities
Clean, keyboard-friendly engineering utilities for debugging APIs, payloads, query strings, and regex patterns.
URL Encoder & Decoder
Percent-encode or decode URLs, query parameters, and UTM strings cleanly and inspect parsed query key-value pairs.
4.8
OpenRegular Expression (Regex) Tester
Test JavaScript/ECMAScript regular expressions with live match highlighting, capture groups, flags, and cheat-sheet presets.
4.8
Open