UUID Generator
Generate RFC 4122 version 4 UUIDs using your browser's cryptographically secure random generator.
How to use
- Choose how many UUIDs you need.
- Click Generate.
- Copy individual UUIDs or all of them at once.
Examples
Example UUID
Output: 3f6b2a90-1c4e-4f7a-9b2d-8e5c1a7f3d20
Frequently asked questions
Are these UUIDs truly random?
Yes. They are generated with crypto.getRandomValues(), the same CSPRNG browsers use for security features.
Can two UUIDs collide?
The probability is astronomically small (about 1 in 2^122 per pair), which is why v4 UUIDs are safe as identifiers.