Runs entirely in your browser. Nothing you enter is sent anywhere.
How to use UUID Generator
- Choose how many UUIDs you need.
- Press Generate.
- Copy them all with one click.
Frequently asked questions
What is a UUID v4?
A 128-bit identifier built from random numbers, usually written as 36 characters in five hyphen-separated groups.
Can two UUIDs collide?
In practice no. The chance of a duplicate is so small that systems treat v4 UUIDs as unique.
Are they generated securely?
Yes. They come from the browser's cryptographic random source.