Regex Tester

Pattern
Test Input
Matches (0)
No matches found
Common Patterns
Email

Matches valid email addresses

^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$
Examples:
✓user@example.com
✓john.doe@company.co.uk
✗invalid.email@
✗no@domain
Phone (International)

Matches international phone numbers (E.164 format)

^\+?[1-9]\d{1,14}$
Examples:
✓+1234567890
✓+442071234567
✗12345
✗not-a-number
IPv4 Address

Matches valid IPv4 addresses

^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$
Examples:
✓192.168.1.1
✓10.0.0.0
✗256.1.2.3
✗1.2.3
URL

Matches valid HTTP/HTTPS URLs

^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$
Examples:
✓https://www.example.com
✓http://subdomain.site.co.uk/path
✗not-a-url
✗ftp://invalid.com
Password Strength

Minimum 8 characters, at least one letter, one number, and one special character

^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$
Examples:
✓StrongP@ss1
✓Weak123
✗NoNumber@
✗short1!
Date (YYYY-MM-DD)

Matches dates in YYYY-MM-DD format

^\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])$
Examples:
✓2024-02-29
✓2023-12-31
✗2024-13-01
✗24-5-1
Username

3-16 characters, letters, numbers, underscore, hyphen

^[a-zA-Z0-9_-]{3,16}$
Examples:
✓john_doe
✓user123
✗a
✗too_long_username_123
Hexadecimal Color

Matches 3 or 6 character hex colors

^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$
Examples:
✓#ff0000
✓#f00
✗ff0000
✗#xyz123