Regex Tester
Test regular expressions with live matching, capture groups, and detailed explanations. Perfect for developers working with pattern matching and text processing.
Regular Expression
//g
Match Summary
0 matches
Pattern:
/\b\w+@\w+\.\w+\b/gTest String
76 characters
Match Results
No matches found. Try adjusting your pattern or test string.
Regex Quick Reference
Character Classes
- •
.- Any character - •
\d- Digit (0-9) - •
\w- Word character - •
\s- Whitespace - •
[abc]- Character set - •
[^abc]- Negated set
Quantifiers
- •
*- Zero or more - •
+- One or more - •
?- Zero or one - •
{n}- Exactly n - •
{n,m}- Between n and m - •
{n,}- n or more
Anchors
- •
^- Start of string - •
$- End of string - •
\b- Word boundary - •
\B- Non-word boundary
Groups & Alternation
- •
(abc)- Capture group - •
(?:abc)- Non-capture group - •
(?<name>abc)- Named group - •
a|b- Alternation