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Regex Tester

Test JavaScript regular expressions with matches highlighted, groups listed and replacement previewed as you type.

//g

Type a pattern to start.

Test text

Matches

Matches and their groups show up here.

Replace with
Your text never leaves this device.
How it works
  1. 1Type a pattern and flags.
  2. 2Paste the text to test.
  3. 3See matches, groups and replacements.