Regex Match Visualizer

Test a JavaScript regular expression locally. Shows matches, groups, and highlights. No uploads. No tracking.

Pattern (without surrounding /)

Flags

Text

Highlighted

Notes: uses the browser’s JavaScript regex engine (so lookbehind support depends on browser). If your regex can match empty strings with g, we advance by 1 to avoid infinite loops.

Matches

Run a regex to see results.

#	Index	Match	Groups