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🧪 Regex Tester

Test and debug JavaScript regular expressions. Highlight matches and quickly verify regex patterns.

Regex Tester

Test regular expressions against sample text. Toggle flags, preview matches with highlights, and export your results.

Preview (highlighted)

hello world Worldly matters

Matches

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Decode JWT header and payload safely in your browser. Inspect claims and structure without sending tokens anywhere.

Parse cron expressions and preview next run times. Useful for devs managing scheduled tasks and crontab jobs.

Compute HMAC signatures with SHA-256, SHA-1, or MD5 using a secret key. Secure online hashing tool.

Parse a URL into protocol, host, path, query string, and hash. Quick online URL analyzer tool.

Minify and compress JavaScript code instantly. Reduce file size with Terser-style compression and improve load speed.

Minify CSS online by removing whitespace, comments, and redundancy. Optimize your stylesheets quickly.

Minify HTML code instantly. Remove comments, extra spaces, and reduce file size for faster websites.

Validate JSON data against a schema. Catch errors instantly with fast, browser-based JSON schema validation.

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