Dev Tools
Essential utilities for software development.
JSON Formatter
JSON Formatter (Prettify), Validator, Minifier, and Diff tool. Helps developers format code, validate data, and analyze differences between two JSON files.
JWT Decoder & Encoder
Decode, encode, and verify JWT tokens. Analyze payload claims and validate signatures β all processing happens in your browser.
UI Unit Converter
PX, REM, EM, DP, SP, PT, VW/VH Unit Converter. Pixel conversion and responsive design resolution (DPI) calculator for Web, Android, and iOS development.
URL Encoder / Decoder
Encode and decode URLs with encodeURI or encodeURIComponent β all processing happens in your browser.
Regex Tester
Test and debug regular expressions with real-time matching, capture groups, and replacement preview.