Free Online GUID/UUID generator

You can simply click on the "Generate" button to create a new unique GUID or UUID for your personal use.



How does online GUID generator works?

We are using Simple Javascript code to generate GUID or UUID online for you. In the above GUID, we are using Version 4 GUID.

If you are a developer, you can simply generate GUID/UUID using below Javascript code 

function generateUUID() { // Public Domain/MIT
        var d = new Date().getTime();//Timestamp
        var d2 = (performance && performance.now && (performance.now()*1000)) || 0;//Time in microseconds since page-load or 0 if unsupported
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random() * 16;//random number between 0 and 16
            if(d > 0){//Use timestamp until depleted
            r = (d + r)%16 | 0;
            d = Math.floor(d/16);
            } else {//Use microseconds since page-load if supported
            r = (d2 + r)%16 | 0;
            d2 = Math.floor(d2/16);
            }
        return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
      });
    }

Why use an online UUID generator?

If you know any programming language like Javascript, C# , Java, PHP or any other one, you can simply create GUID using that, but sometimes you simply want to create GUID/UUID without writing any code, so you can use Online tool like this.