Generate random UUIDs in your browser
Generate version 4 UUIDs, also called GUIDs, in lowercase, uppercase or without hyphens. Everything happens in your browser, so nothing is sent to a server and there is nothing to install.
Frequently asked questions
Are the GUIDs unique?
Version 4 UUIDs are random. With 122 random bits, the chance of two ever colliding is small enough to ignore in practice.
Are the GUIDs generated locally?
Yes. They are generated in your browser and never leave your machine.