Is Regex Tester free to use?

Yes, Regex Tester is completely free to use. No signup or registration required.

Is my data safe when using Regex Tester?

Yes, all processing happens in your browser. Your data never leaves your device and is not stored on any server.

Yes, Regex Tester is fully responsive and works on all devices including smartphones and tablets.

🔍

Test and debug regular expressions in real-time

Regular Expression

Test String

Matches: 0

The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs.

Test regular expressions with real-time highlighting. See matches, groups, and indices instantly.