.*Developer Tool
Regex Tester
Test and debug regular expressions with real-time matching and highlighting. Learn regex patterns with common examples.
//g
Common Patterns
Quick Reference
.Any character\dDigit [0-9]\wWord char\sWhitespace^Start of line$End of line*0 or more+1 or more?0 or 1{n}Exactly n[abc]Character set()Capture group|Alternation💡 Tips
- • Use
\to escape special characters - • Named groups:
(?<name>...) - • Non-capturing:
(?:...) - • Lookahead:
(?=...) - • Lookbehind:
(?<=...)