Free Regex Tester
Test and debug regular expressions with real-time matching. Validate patterns, see matches, and learn regex syntax.
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Regular Expression Pattern
Flags
Test String
Sample Patterns
Match Results
Enter a regex pattern to see results
Sample Test Strings
Regex Cheat Sheet
Character Classes
.Any character\dDigit\wWord character\sWhitespace[abc]Any of a, b, cQuantifiers
*0 or more+1 or more?0 or 1{n}Exactly n{n,m}Between n and mAnchors
^Start of string$End of string\bWord boundary\BNot word boundaryFeatures
Real-time Testing
See matches instantly as you type
Error Detection
Get immediate feedback on invalid patterns
Sample Patterns
Common regex patterns to get started
Easy Copying
Copy patterns and results to clipboard
Cheat Sheet
Built-in regex reference guide
Flag Support
Test with different regex flags
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