Regex Tester

Live evaluate regular expressions with capture groups and highlighting.

Regular Expression

Test String

Match Results (2 matches)

Match 1:support@example.com
Match 2:sales@company.co.uk

. Any character except newline\w Word character (a-z, A-Z, 0-9, _)\d Digit (0-9)\s Whitespace (space, tab, newline)

^ Start of string / line$ End of string / line\b Word boundary

* 0 or more+ 1 or more? 0 or 1 (optional){n} Exactly n times

(...) Capture group[abc] Any of a, b, or c[^abc] Not a, b, or ca|b Match a or b

g Global (don't stop at first match)i Case insensitivem Multiline (^ and $ match per line)

About Regex Tester

Live regular expression evaluator supporting capture groups, flags, match breakdown, and quick syntax cheatsheets.