RegEx Validator Tool

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RegEx Validator Tool

🧩 RegEx Validator Tool

/ /

g i m s

Replace Mode

↳

Test String

Match Result

0 Matches 0ms

Captured Groups

No groups captured.

📚 Cheatsheet

Character Classes

. Any character except newline
\w Word character (a-z, A-Z, 0-9, _)
\d Digit (0-9)
\s Whitespace (space, tab, newline)
[abc] Any of a, b, or c
[^abc] Not a, b, or c

Quantifiers

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

Anchors

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

Groups

(...) Capture group
(?:...) Non-capturing group
$1 Reference group #1 (in replace)

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