Regular Expression Matcher
Regular Expression Settings
//
Common flags: g (global), i (ignore case), m (multiline), s (single line)
Match Results0 matches
0 matches
Please enter regular expression to start matching
Common Regular Expressions
Syntax Help
Basic Matching
.
matches any character*
matches 0 or more times+
matches 1 or more times?
matches 0 or 1 timeCharacter Classes
\d
digit character\w
word character\s
whitespace character[a-z]
character rangeGroups
()
capture group(?:)
non-capture group$1
reference first group