Regex Tester
Regular Expression
Enter your regular expression and test string
g: global, i: case-insensitive, m: multiline, s: dotAll, u: unicode, y: sticky
Match Results
View matches and highlighted text
Match results will appear here
Text Replacement
Replace matched text with custom replacement
Use $1, $2, etc. to reference capture groups
Regex Cheat Sheet
Common regex patterns and their meanings
Character Classes
\w - Word character (a-z, A-Z, 0-9, _)\d - Digit (0-9)\s - Whitespace. - Any character (except newline)[abc] - Any character in brackets[^abc] - Any character not in bracketsQuantifiers
* - Zero or more+ - One or more? - Zero or one{n} - Exactly n times{n,} - n or more times{n,m} - Between n and m times