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Pedro Ivotools

Regex Tester

Test JavaScript regular expressions against your text, see every match with numbered and named groups, and preview replacements.

Local calculation
The result is calculated in your browser.
Private by default
Nothing you enter leaves your browser.
Flags

2 matches

  1. #1 at 0: ana@example.comGroups: $1="ana", $2="example"
  2. #2 at 17: bruno@test.comGroups: $1="bruno", $2="test"

Use $1, $2 or $<name> to insert groups.

How it works

Your pattern runs with the browser's own JavaScript RegExp engine, so results match what your code will do. Matches, their positions and capture groups update as you type.

The replacement field accepts $1, $2 and $<name> references to show the text after a String.replace call.

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