Regex Tester

Debug regular expressions with live matches, captured groups, and helpful visual highlights.

About Regex Tester

Test and debug regular expressions in real-time. Perfect for developers, data analysts, and text processing tasks.

Features

Live Testing: See matches as you type
Group Capture: View captured groups
Visual Highlights: Highlight matched text
Multiple Flags: Test with different regex flags

Pattern

Flags

g

i

m

s

Test text

Matches

Run the test to see matches highlighted here.

Captured groups

Groups will appear here when the pattern includes parentheses.

'; ?>