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RegExp Tester

Test your regular expressions in real time

Test your Regular Expression
Enter your regular expression and the text to see the matches.
Type some text to test...
Enter a regular expression and a test string to begin.

💡 Tips:

  • • The test runs automatically as you type.
  • • Use flags `g` (global), `i` (case-insensitive), and `m` (multiline) to modify the search behavior.
  • • Matches will be highlighted in yellow in the test text.
  • • If your regular expression is invalid, an error message will be shown.