Regex Tester
Test regular expressions in real time with live match highlighting
Regular Expression
Test String
Match Results
Matches: 0
Regex Reference
.Any single character
\dDigit (0-9)
\wWord char (a-z,0-9,_)
\sWhitespace
^Start of line
$End of line
*0 or more
+1 or more
?0 or 1
[abc]Character class
(group)Capture group
a|ba or b
\bWord boundary
{{n}}Exactly n times
FAQ
What is a regular expression?
A regular expression (regex) is a search pattern syntax for matching strings. It's widely used for email validation, phone number extraction, data parsing, and text processing.
What are the flags (g, i, m)?
g (global) finds all matches. i (case-insensitive) ignores uppercase/lowercase. m (multiline) makes ^ and $ match line starts/ends instead of string starts/ends.
Can I test with special characters?
Yes. This tester supports all JavaScript regex features including Unicode, lookahead/lookbehind, and character classes.
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