Regex Tester & Explainer

Test patterns, highlight matches, and understand regex behavior.

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How to use this tool

  1. Pattern: type your regex (example: ^(\w+)\s+(\w+)$).
  2. Flags: enable options like Ignore case (i) or Multiline (m).
  3. Text: paste the content you want to test.
  4. Click Run → see highlighted matches + capture groups.
  5. Use Download (CSV/HTML). Downloads expire after a short time for safety.

Test

Output

Run the tester to see results here.
Downloads expire in —