Regex Cheat Sheet

Regular expression syntax reference

Click pattern to copy

Character Classes

Any Character

Any character except newline

Word

A-Z, a-z, 0-9, and underscore

Digit

Any digit 0-9

Whitespace

Space, tab, newline

Non-Word

Anything NOT a word character

Non-Digit

Anything NOT a digit

Quantifiers

Zero or More

Match 0 or more times

One or More

Match 1 or more times

Optional

Match 0 or 1 time

Exact Count

{n}

Match exactly n times

Range Count

{n,m}

Match between n and m times

Anchors & Boundaries

Start of String

Match beginning of input

End of String

Match end of input

Word Boundary

Match position between word and non-word

Groups & Sets

Character Set

[abc]

Any character in the brackets

Negated Set

[^abc]

Any character NOT in the brackets

Capturing Group

(abc)

Group multiple tokens together

Non-Capturing Group

(?:abc)

Group without capturing

Interactive Testing

Want to test these patterns live? Head over to our Regex Tester to debug your regular expressions in real-time.

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