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Regex Tester

Test regular expressions against your text with live highlighting

Build and debug regex patterns with live highlighting and match extraction.

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Features

  • 100% free to use
  • No signup or account required
  • Works directly in your browser
  • Private and secure processing

How to Use

  1. 1Enter your regex pattern
  2. 2Paste test text
  3. 3See matches highlighted instantly

Regex Tester – Frequently Asked Questions

Which regex flavor is used?

JavaScript-compatible regex syntax with common flags.

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