Test • Match

Regex Tester

Test regular expressions against sample text. See matches in real time.

Matches will appear here.

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Frequently Asked Questions

Which regex flavor does this tester use?

This regex tester uses the regular expression engine built into your browser's JavaScript environment, which is similar to many modern regex flavors.

What do the g, i and m flags mean?

g finds all matches (global), i makes the match case-insensitive, and m enables multiline mode so ^ and $ match line boundaries.

Is any of my test text or patterns saved?

No. Everything you type stays in your browser tab and is not transmitted or stored on any server.