How to use Regex Tester
Enter a pattern, flags and test text to inspect every match. Click Process, then download or copy the result when it is ready.
Privacy and output quality
Each match includes its index and capture groups for precise debugging.
DEVELOPER TOOLS
Regex Tester online
Enter a pattern, flags and test text to inspect every match.
Local processing
LOCAL PROCESSING
Everything happens in your browser
The file and text never leave your device.
FREQUENTLY ASKED QUESTIONS
Are my files or data uploaded?
No. The operation runs locally in your browser and PriviTools never receives the content.
Do I need an account or installation?
No. The tool works directly in modern browsers, with no account and no charge.