🔎

Regex Tester

Test regular expressions with live match highlighting and capture group details.

How to Use the Regex Tester

Enter your regular expression in the pattern field between the slashes.
Check or uncheck flags (g, i, m, s, u) to control matching behavior.
Type your test string — matches are highlighted in real time.
Click any Common Pattern to load a pre-built regex for emails, URLs, and more.