Regex Tester
Test regex patterns and check matching results.
Regex Pattern
Enter the regex to test
//
Example Patterns
Load commonly used regex patterns
Test String
Enter the string to test the regex against
Match Results
No matches
Regex Cheat Sheet
Basic Characters
- •
.- Any character (except newline) - •
\d- Digits (0-9) - •
\w- Word characters (a-z, A-Z, 0-9, _) - •
\s- Whitespace characters - •
[abc]- One of a, b, c - •
[a-z]- Range from a to z
Quantifiers
- •
*- 0 or more - •
+- 1 or more - •
?- 0 or 1 - •
{n}- Exactly n - •
{n,m}- Between n and m - •
{n,}- n or more
Anchors
- •
^- Start of string - •
$- End of string - •
\b- Word boundary - •
\B- Not word boundary
Groups
- •
(abc)- Capturing group - •
(?:abc)- Non-capturing group - •
a|b- a or b - •
(?=abc)- Positive lookahead