🏠 Home

UUID/GUID Generator

Generate universally unique identifiers (UUID/GUID)

Generate UUIDs
Random UUID (recommended)
Maximum: 1000
0
UUIDs generated
0
This session
v4
Current version
Generated UUIDs

No UUID generated. Click "Generate" to start.

Validateur UUID
About UUIDs
Versions UUID:
  • v1: Based on timestamp and MAC address
  • v4: Randomly generated (most common)
  • v5: Based on SHA-1 hash of a namespace and name
Format:

xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx

  • M: Version (1, 4, ou 5)
  • N: Variant (8, 9, a, ou b)
  • Collision probability (v4): ~10⁻³⁷