Free tools / UUID Generator
Generate UUIDs
Create version-4 UUIDs using your browser's cryptographic random generator - one or a whole batch - then copy them. Nothing is generated on a server, so every ID is yours alone.
How it works
- 1Set how many UUIDs you need (1-100).
- 2Optionally uppercase them or wrap each in braces.
- 3Generate, then copy one or all - they're produced with crypto.randomUUID().
Frequently asked
Which UUID version is this?
Version 4 - random. 122 of its 128 bits come from a cryptographically secure random source, so collisions are effectively impossible for practical purposes.
Are these safe to use as IDs / keys?
Yes for identifiers. They're generated with the Web Crypto RNG in your browser and never leave it. For security tokens, prefer a purpose-built secret, but v4 UUIDs are fine as unique keys.
Do you log or store the UUIDs?
No. They're generated locally in your browser and nothing is sent anywhere.