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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

Pattern

Flags

g: global, i: ignore case, m: multiline, s: dotall

Common Patterns

Validates email addresses

Phone (US)

US phone number format

URL

HTTP/HTTPS URLs

IPv4

IPv4 address validation

Hexadecimal

Hex color codes

Test Text

Input Text

Highlighted Matches

Contact Information: Email: [email protected] 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

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