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Regex Helper & Generator
Build, test, and explore regular expressions with common patterns library
Pattern Builder
Regex Pattern
/
/
g
Flags
g - Global
i - Case Insensitive
m - Multiline
s - Dotall
u - Unicode
Test String
Results
Common Patterns Library
Email
Valid email address
URL
HTTP/HTTPS URLs
Phone (International)
E.164 format phone numbers
Phone (US)
US phone format
IPv4 Address
Valid IPv4 address
IPv6 Address
Full IPv6 address
Date (YYYY-MM-DD)
ISO date format
Date (DD/MM/YYYY)
European date format
Time (24h)
24-hour time format
Hex Color
Hex color code
Username
3-16 chars, alphanumeric + underscore
Password (Strong)
Min 8 chars, upper, lower, number, special
Credit Card
Visa, Mastercard, Amex
ZIP Code (US)
US ZIP code with optional +4
Postal Code (UK)
UK postal code
SSN
US Social Security Number
Slug
URL-friendly slug
UUID
UUID v4 format
MAC Address
Network MAC address
HTML Tag
Match HTML tags