Regex

Test regex patterns with flags and matched results | Dev Tools

Experiment with regular expressions quickly. Try patterns with flags, view matched substrings with positions, and debug capture groups for your text processing tasks.

Development

SEO-friendly URLShareable metadataCopy-ready outputs

Regex

Regex Tester

Validate regex patterns, flags, and see live matches against sample text.

Development

Regex pattern

Flags

Common: g (global), i (ignore case), m (multiline)

Sample text

MatchesShows matched text, index, and named groups

Run the tester to see matches for your pattern.