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Regex Tester

Test your regular expressions in real-time.

Expression
//

Test String

Matches0 matches

Enter a pattern and text to start.

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Features
  • Real-time regex matching
  • Support for JavaScript regex flavor
  • Group capturing and index display
  • Flag selection (g, i, m, s)
  • Detailed match information
How to Use
  1. Enter your regex pattern in the top input
  2. Set your flags (e.g. 'g' for global, 'i' for case insensitive)
  3. Type or paste your test string
  4. See matches instantly highlighted and listed