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Regex Tester

v1.1.0

Test regular expressions with live matching, capture groups, and common pattern library.

Interactive regular expression tester with real-time match highlighting, capture group display, and flag toggles.

How to use
  • →Type your regex pattern in the Expression field and your test string below.
  • →Matches are highlighted in real-time as you type.
  • →Use the flag checkboxes to toggle global (g), case-insensitive (i), multiline (m) and other flags.
  • →Try a preset from the example picker to see sample input.
//g
Flags:
Test String
Matches (0)
No matches yet — enter a pattern and test string