Regular Expression Tester
Test and debug regular expressions with real-time matching.
Regular Expression Tester
Test and debug regular expressions with real-time matching and group capture visualization.
Valid Pattern
0Matches
0Pattern Length
Regular Expression
g: global, i: ignore case, m: multiline, s: dotall
Email
Validates email addresses
Phone (US)
US phone number format
URL
HTTP/HTTPS URLs
IPv4
IPv4 address validation
Hexadecimal
Hex color codes
Test Text
Contact Information:
Email: john.doe@example.com
Phone: +1 (555) 123-4567
Website: https://www.example.com
IP: 192.168.1.1
Color: #FF5733
Invalid Examples:
Email: invalid.email@
Phone: 123-456
Website: not-a-url
IP: 999.999.999.999
Color: #GGGGGG
Regex Tester Features
Pattern Testing
- • Real-time pattern matching
- • Multiple flag support
- • Error validation
- • Group capture display
Visual Feedback
- • Highlighted matches
- • Match position tracking
- • Group visualization
- • Match count display
Common Patterns
- • Email validation
- • Phone number formats
- • URL validation
- • IP address matching