.*

Regex Tools

Build, test, and debug regular expressions.

/ /

{{regexError}}

Test String

Matches

No matches found.

Match {{$index + 1}}

{{match[0]}}

Group {{$index + 1}}: {{group}}

Index: {{match.index}}

Components

Built Expression

Click components on the left to append them to your expression.

Character Classes

. Any character
\d Digit (0-9)
\w Word char (a-z, A-Z, 0-9, _)
\s Whitespace

Anchors

^ Start of string/line
$ End of string/line
\b Word boundary

Quantifiers

* 0 or more
+ 1 or more
? 0 or 1
{3} Exactly 3
{3,} 3 or more

Groups & Lookaround

(abc) Capture group
(?:abc) Non-capturing
[abc] One of a, b, c
[^abc] None of a, b, c