Regex Tester

Test regular expressions
This free online regex tester runs in your browser and is part of our Developer Tools collection.

Regex Tester

Test and debug regular expressions with real-time matching and highlighting.

Regular Expression:

Flags:

g (global) i (ignore case) m (multiline) s (dotAll) u (unicode)

Test String:

Quick Reference:

\d - Any digit (0-9)
\w - Word character (a-z, A-Z, 0-9, _)
\s - Whitespace character
. - Any character except newline
+ - One or more
* - Zero or more
? - Zero or one
{n,m} - Between n and m times
^ - Start of string
$ - End of string

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