RegexTest

Test regular expressions with instant visual feedback

Real-time matching
Capture groups
Privacy-first (browser-only)
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Results

Enter a pattern and test string to see matches

Common Patterns

Email Address
\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}\b
Match valid email addresses
URL
https?://...
Match HTTP and HTTPS URLs
US Phone Number
\d{3}-\d{3}-\d{4}
Match US phone numbers
IPv4 Address
\b(25[0-5]|...)\...
Match valid IPv4 addresses
Hex Color
#([A-Fa-f0-9]{6}|...)
Match hex color codes
ISO Date (YYYY-MM-DD)
\b\d{4}-\d{2}-\d{2}\b
Match ISO 8601 date format

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