UI Bakery RegEx Library
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RegEx library
Email regex Java
Phone number regex Java
IP address regex Java
Date regex Java
URL regex Java
Numbers only regex (digits only) Java
UUID regex Java
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

UUID regex Java

UUID is a 128-bit label used for identifications in computer systems.

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JavaScript
Python
Java
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UUID regex

Below is a simple UUID regular expression that will work most of the time:

Pattern.compile("^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$")
Test it!
/^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i

True

False

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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 UUID
        boolean isMatch = Pattern.compile("^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$")
               .matcher("123e4567-e89b-12d3-a456-426614174000")
               .find(); 
        System.out.println(isMatch); // prints true
        
        // Extract UUID from a string
        String[] matches = Pattern.compile("[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}")
                          .matcher("The UUID 123e4567-e89b-12d3-a456-426614174000 for node Node 01 is not unique.")
                          .results()
                          .map(MatchResult::group)
                          .toArray(String[]::new);
        System.out.println(Arrays.toString(matches)); // prints [123e4567-e89b-12d3-a456-426614174000]
    }
}
Test it!

True

False

Enter a text in the input above to see the result

Test it!

True

False

Enter a text in the input above to see the result

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