RegEx library
Email regex Java
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IP address regex Java
Date regex Java
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Regex match words Java
ZIP code regex Java
GUID regex Java
Password regex Java
HTML regex Java
SSN regex Java
XML regex Java
Mac address regex Java
Street address regex Java

URL regex Java

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

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

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("^[[email protected]:%._\\+~#=]{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("[[email protected]:%._\\+~#=]{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.