Regex Tester & Debugger
Test, build, and debug regular expressions in real-time. Inspect matches, check capturing groups, and choose from standard presets, fully client-side.
Presets:
//
gi
Flags:
Test String Input
Match Highlight Preview0 matches
No matches found.
Match Groups Inspector
No active matches. Adjust the regex pattern or inputs.
Privacy Compliance: Agnixbit is serverless/local-first. All regular expression testing and matching are performed in your browser's local sandbox memory space. No keystroke logging or raw texts are transmitted outside.
Frequently Asked Questions
Is this Regex Tester secure for sensitive data?
Yes. The Regex Tester operates entirely inside your web browser using local client-side Javascript. None of the text or patterns you enter are sent to external servers.
Which flags can I use in this Regex Tester?
You can use standard Javascript regex flags including global (g), case-insensitive (i), multiline (m), dotAll (s), unicode (u), and sticky (y).