Regex Cheat Sheet

Regular Expressions syntax reference for pattern matching.

Character Classes

.Any character except newline

\wWord character (a-z, A-Z, 0-9, _)

\dDigit (0-9)

\sWhitespace (space, tab, newline)

[abc]Any of a, b, or c

[^abc]Not a, b, or c

[a-z]Character between a and z

*0 or more

+1 or more

?0 or 1

{3}Exactly 3

{3,}3 or more

{3,5}Between 3 and 5

^Start of string/line

$End of string/line

\bWord boundary

(...)Capturing group

(?:...)Non-capturing group

(?=...)Positive lookahead

(?!...)Negative lookahead