Private developer and technical tools

Regex Tester

Test bounded JavaScript regular expressions and inspect matches and capture groups locally.

Your input stays in this browser. Rabetly does not receive or store code, tokens, headers, or technical data.

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Uses JavaScript regular expression syntax. Pattern and test-text limits help avoid expensive runs.

Result

Your processed result will appear here.

How this tool works

The transformation runs locally in your browser. Entered values are not sent to Rabetly, put in the URL, or added to analytics.

Regex testing uses only the built-in JavaScript RegExp engine. It does not execute JavaScript, and input limits reduce the chance of costly patterns freezing the page.

Developer tools FAQ

Is my technical input uploaded?

No. These transformations run in your browser. Rabetly does not receive the JSON, source, token, header, or other value you enter.

Which browser APIs are used?

Standard browser APIs handle text conversion, secure randomness, UUIDs, timestamps, and Web Crypto hashes. No external processing API is used.

Does a decoded or formatted value run as code?

No. Results are shown as text. This category does not execute code, make network requests, verify JWT signatures, or scan external systems.