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Regex Tester
Test regular expressions with live match highlighting, group capture, and an instant cheatsheet reference.
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✅ Valid regex — 0 matches
Regex Cheatsheet
Click to insert into regex
Characters
.Any character
\dDigit [0-9]
\wWord char [a-zA-Z0-9_]
\sWhitespace
\DNon-digit
\WNon-word char
Anchors
^Start of string
$End of string
\bWord boundary
Quantifiers
*0 or more
+1 or more
?0 or 1
{n,m}Between n and m
Groups
()Capture group
(?:)Non-capture group
[a-z]Character class
[^a-z]Negated class
Common Patterns
EmailEmail address
URLHTTP/S URL
IPv4IP address
PhonePhone number
UK PostUK Postcode
Inserted!