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Regex Tester
Test regular expressions live with highlighted matches and match counts. Free online regex tool for developers.
How to use Regex Tester
- 1. Open Regex Tester — no install and no sign-up needed.
- 2. Add your file or text above. Everything is processed privately, right in your browser.
- 3. Get your result and download it instantly — free.
Frequently asked questions
Is Regex Tester free?
Yes — 100% free, with no account or sign-up required.
Is my data safe and private?
Your files are processed locally in your browser and are never uploaded to any server.
Do I need to install anything?
No. It works in any modern browser on desktop and mobile.