Regex Tester & Debugger

Test and debug regular expressions with real-time highlighting and matching analysis

Developer Tools
Regular Expression
Enter your regex pattern with optional flags

Common patterns:

Test Text
Enter text to test against your regex pattern
Match Results
No matches found
Enter a regex pattern and test text to see highlighted matches
Real-time Matching
Instant regex testing with live highlighting
Auto-save History
Recent patterns automatically saved locally
Advanced Features
Capture groups, flags, and detailed match analysis