Regex Tester

Test regular expressions with live matching and capture groups

Flags

Global (g)

Case insensitive (i)

Multiline (m)

Dotall (s)

Pattern

//g

Common Patterns

Test String

Enter a pattern and test string to start matching

Uses the JavaScript RegExp engine. All processing happens locally in your browser.

Regex Tester FAQ

The tool uses the browser JavaScript RegExp engine for matching behavior.

Yes, the tester displays match groups and supports standard JavaScript regex flags.