Regex Validator
Test and validate regular expressions with real-time feedback
Regex Pattern
Enter your regular expression pattern
Test Strings
Enter strings to test your regex against (one per line)
Results
See which strings match your pattern
No results to display
Common Patterns
Click to use these predefined patterns with example strings
Email
^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$
Matches valid email addresses
URL
https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
Matches HTTP/HTTPS URLs
Phone Number
^\+?[1-9]\d{1,14}$
Matches international phone numbers
Date (YYYY-MM-DD)
^\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
Matches dates in YYYY-MM-DD format
Strong Password
^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$
Matches passwords with at least 8 characters, including uppercase, lowercase, number, and special character
Flag Reference
Common regex flags and their meanings
g
Global - Find all matches
i
Case-insensitive matching
m
Multiline - ^ and $ match start/end of each line
s
Dot (.) matches newlines too
u
Unicode support