Test, debug, and refine regular expressions with real-time match highlighting, capture group inspection, a common patterns library, and find-and-replace.
Enter a regex pattern and test string
Matches will appear here in real-time
.Any character\dDigit [0-9]\wWord char\sWhitespace^Start of line$End of line*0 or more+1 or more?0 or 1{n,m}n to m times(abc)Capture group[abc]Char classa|bAlternation\bWord boundary(?:abc)Non-capture(?=abc)Lookahead