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Regex Tester & Visualizer

Test regular expressions with real-time match highlighting.

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Matches

About this tool

Test JavaScript regular expressions in real time, with highlights and capture group inspection.

  • ✅ Live match highlighting
  • ✅ Supports flags g i m s u y
  • ✅ Capture groups (numbered and named) shown for each match
  • ✅ Shows match index and execution time
  • ✅ All processing is client-side