Regular Expression Pattern

Regex Flags

0 characters

Results

Enter a regex pattern and test string to see matches.

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Regex Cheat Sheet

Character Classes

. Any character except newline
\d Digit (0-9)
\D Not digit
\w Word character (a-z, A-Z, 0-9, _)
\W Not word character
\s Whitespace (space, tab, newline)
\S Not whitespace

Anchors

^ Start of string
$ End of string
\b Word boundary
\B Not word boundary

Quantifiers

* 0 or more
+ 1 or more
? 0 or 1
{3} Exactly 3
{3,} 3 or more
{3,5} 3, 4 or 5