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Regex Tester

Enter a pattern and flags, then type test text to see matches highlighted and counted in real time.

How to use the Regex Tester

  1. Enter your pattern and flags.
  2. Type or paste test text.
  3. See matches counted and listed live.

100% free, no sign-up, and it all runs in your browser — your data never leaves your device.

FAQ

Which regex flavor is this?

JavaScript (ECMAScript) regular expressions, the same engine browsers use.

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