Developer Tools
Boost your development workflow with client-side, zero-latency developer utilities. Test regular expressions, format JSON, decode JWTs, convert timestamps, and inspect hashes safely in your browser.
Available Developer Tools
Showing 8 of 123 total toolsJSON Formatter & Validator
Beautify, validate, minify, repair, inspect, diff, and query JSON online.
Regex Tester & Debugger
Test, debug, explain, and replace regular expressions in real-time.
UUID / GUID Generator
Generate cryptographically secure random UUID v4 & GUIDs in bulk.
JWT Decoder & Inspector
Decode, inspect claims, convert timestamps, and verify JWT signatures client-side.
Cron Expression Generator
Build, explain, and schedule cron expressions with live preview & code snippets.
Unix Timestamp Converter
Convert Unix epoch timestamps to human dates, parse ISO 8601, and calculate token expirations.
Hash Generator (MD5, SHA256)
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and HMAC hashes from text or files.
Text Diff Checker
Compare two text or code files side-by-side with word & line-level diff highlights.