How to use the UUID Generator tool
- Choose how many UUIDs you need (up to 1,000) and whether you want uppercase or no hyphens.
- Click Generate.
- Copy them all or download them as a text file.
What is a UUID?
A UUID (universally unique identifier) is a 128-bit ID such as 3f2b8c1e-…. Version 4 UUIDs are random, and the chance of two ever colliding is so small that they can be generated anywhere without coordination — perfect for database keys and file names. They are created with your browser's secure random generator.
Frequently asked questions
Are these UUIDs truly random?
They use your browser's cryptographically secure random number generator.
How many can I generate?
Up to 1,000 at a time.
Is the UUID Generator tool really free?
Yes — completely free, forever. There is no sign-up, no payment, no watermark and no daily limit.