UUID Generator
Generate universally unique identifiers in common UUID versions, right in your browser.
Versions 3 and 5 are deterministic: the same namespace and name produce the same UUID.
Version 8 is for application-specific UUID layouts; this generator uses a random custom payload.
Output
0 UUIDsUses the browser's Web Crypto API for cryptographic randomness and hashing. Versions 2 (DCE Security) is intentionally omitted because it is rarely used and requires domain-specific identifiers. Run this page in a modern browser; versions 3 and 5 require Web Crypto support.