Regex Tester

Test regular expressions against sample text and inspect matches quickly.

Free online toolNo forced signupWorks in your browserDeveloper Tools

Privacy

You can use this tool without an account. When practical, processing happens in your browser; accounts only add optional favorites and history.

How to use

  1. Open Regex Tester and enter the information requested by the form.
  2. Review the calculated result and recommendations.
  3. Copy or reset the result when you are ready to try another scenario.

Examples

  • Use Regex Tester for a focused developer tools task.
  • Compare the result against another scenario.
  • Copy the final output into your notes, project plan, or documentation.

FAQ

Is Regex Tester free?

Yes. Regex Tester is free to use and does not require an account.

Does Regex Tester save my input?

No input is saved unless you are signed in and explicitly use account features that save history or favorites.

Does Regex Tester require login?

No. Login is optional and only adds convenience features such as favorites, recent tools, and synced history.

Can I use Regex Tester on mobile?

Yes. The tool page is designed to work on phones, tablets, laptops, and desktop screens.

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