Developer Utilities
Developer utilities for JWT, regex, and daily debugging
Inspect tokens, test regular expressions, and validate patterns during development. Utilities on this page focus on quick inspection tasks that come up constantly when working with authentication, log parsing, and string matching.
5 tools in this category
- jwt decoder onlineJWT Decoder / InspectorDecode JWT headers and payloads, inspect claims, and review token timestamps locally.
- regex tester onlineRegex Tester with ExplanationTest regular expressions, review matches, and get a lightweight explanation of common regex tokens.
- hash generator onlineHash GeneratorGenerate SHA-256, SHA-384, SHA-512, and SHA-1 hex digests from text using Web Crypto in your browser.
- cron expression parserCron Expression ParserExplain standard five-field cron expressions in plain English for crontab, workers, and CI schedules.
- query string parserQuery String ParserParse URL query parameters into a table and rebuild percent-encoded query strings for API debugging.