utilbin / regex live matching

Regex tester

Test a regular expression against sample text.

Selected:
Matches 0

Flags: g global, i ignore case, m multiline, s dotAll. Highlight part of the test string to build a pattern from it.

Common regex tokens ▾
\ddigit (0-9)
\wword character
\swhitespace
.any character
\bword boundary
^ $start / end of line
*0 or more
+1 or more
?0 or 1 (optional)
{n,m}between n and m times
[abc]any of a, b, c
[^abc]none of a, b, c
(...)capture group
(?:...)non-capturing group
a|ba or b
(?=...)lookahead