Regex Tester

About this tool

Test regular expressions against sample text. See matches, groups, and highlights in real-time. Supports JavaScript regex syntax.

How to use

1. 1Enter your regex pattern
2. 2Enter test string
3. 3View matches and groups

Features

• 100% free to use
• No registration required
• Processes locally in your browser
• Works on all devices

Privacy

Your data is processed entirely in your browser and never sent to our servers. We have no access to your files or data.

Frequently Asked Questions