UUID Generator
Generate cryptographically random version 4 UUIDs.
Processed on your deviceFree · No account needed
How to use it
- Choose how many identifiers you need.
- Generate version 4 UUIDs and copy the list.
A UUID has the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.
Details & limits
1–100 UUIDs per run. UUID version 4 uses browser cryptography; uniqueness is probabilistic.
Are these suitable for authentication tokens?
UUIDs are identifiers, not a complete authentication design. Version 4 provides 122 random bits, generated with browser cryptography. Collisions are extraordinarily unlikely but not mathematically impossible.