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ToolDesk

Regex Tester

Test regular expressions in your browser. Highlights matches and capture groups instantly.

Dev

How to use

  1. Enter a regular expression and toggle flags (i/m/s/u) as needed.
  2. Type the test text and matches are highlighted.

FAQ

Which regex engine is used?

The browser's JavaScript (ECMAScript) regex engine.

Can I see capture groups?

Matches are highlighted and groups are captured internally.

Is my data uploaded?

No. Everything runs in your browser.