Library
Current regex:
URL regex Java
Java

Java

ZIP code regex Java
ZIP code
XML regex Java
XML
UUID regex Java
UUID
URL regex Java
URL
Street address regex Java
Street address
SSN regex Java
SSN
Regex match words Java
Words match
Phone number regex Java
Phone number
Password regex Java
Password
Numbers only regex (digits only) Java
Numbers only (digits only)
Mac address regex Java
Mac address
IP address regex Java
IP address
HTML regex Java
HTML
GUID regex Java
GUID
Email regex Java
Email
Date regex Java
Date
URL regex Java

URL

URL regular expressions can be used to verify if a string has a valid URL format as well as to extract an URL from a string.

JavaScript
JavaScript
Python
Python
Java
Java
C#
C#
PHP
PHP

URL regex that starts with HTTP or HTTPS

HTTP and HTTPS URLs that start with protocol can be validated using the following regular expression

Pattern.compile("^https?:\\/\\/(?:www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&\\/=]*)$")

Test it!
/^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$/

True

False

Enter a text in the input above to see the result

Example code in Java:

import java.util.regex.Pattern;
import java.util.regex.MatchResult;
import java.util.Arrays;

public class Main {

    public static void main(String []args) {
        // Validate URL
        boolean isMatch = Pattern.compile("^https?:\\/\\/(?:www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&\\/=]*)$")
               .matcher("https://uibakery.io")
               .find(); 
        System.out.println(isMatch); // prints true
        
        // Extract date from a string
        String[] matches = Pattern.compile("https?:\\/\\/(?:www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&\\/=]*)")
                          .matcher("You can view more details at https://uibakery.io or just ping via email.")
                          .results()
                          .map(MatchResult::group)
                          .toArray(String[]::new);
        System.out.println(Arrays.toString(matches)); // prints [https://uibakery.io]
    }
}

URL regex that doesn’t start with HTTP or HTTPS

The regular expression to validate URL without protocol is very similar:

Pattern.compile("^[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&//=]*)$")

Test it!
/^[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$/

True

False

Enter a text in the input above to see the result

Example code in Java:

import java.util.regex.Pattern;
import java.util.regex.MatchResult;
import java.util.Arrays;

public class Main {

    public static void main(String []args) {
        // Validate URL without protocol
        boolean isMatch = Pattern.compile("^[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&\\/=]*)$")
               .matcher("uibakery.io/contact")
               .find(); 
        System.out.println(isMatch); // prints true
        
        // Extract URL without protocol from a string
        String[] matches = Pattern.compile("[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b(?:[-a-zA-Z0-9()@:%_\\+.~#?&\\/=]*)")
                          .matcher("You can view more details at uibakery.io or just ping via email.")
                          .results()
                          .map(MatchResult::group)
                          .toArray(String[]::new);
        System.out.println(Arrays.toString(matches)); // prints [uibakery.io]
    }
}

Test it!

True

False

Enter a text in the input above to see the result

Notes on URL validation

The above-mentioned regular expressions only cover the most commonly used types of URLs with domain names. If you have some more complex cases you might need a different solution.