← Back to Tools

Regex Playbox

An interactive, local regular expression playground.

Regular Expression

/ /

Test String

0 Matches

Contact support at info@example.com or reach out directly to the sales team at sales-inquiries123@company.co.uk. 
Please DO NOT reply to noreply@automated-system.net.

Also regex is great!

Match Results

Enter a regex and test string to see match groups.

Regex Cheatsheet

Character Classes

. Any character except newline
\w Word character [a-zA-Z0-9_]
\d Digit [0-9]
\s Whitespace
\W Not a word
\D Not a digit
\S Not whitespace

Anchors

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

Quantifiers

* 0 or more
+ 1 or more
? 0 or 1
{3} Exactly 3
{3,} 3 or more
{3,5} 3, 4, or 5

Groups & Sets

[abc] a, b, or c
[^abc] Not a, b, or c
[a-z] Characters a to z
(xyz) Capture group
(?:xyz) Non-capturing group
x|y x or y

Common Flags

g Global (don't stop at first match)
i Case insensitive
m Multiline (impacts ^ and $)