UUID Generator

Generate universally unique identifiers (UUIDs) in v1 or v4 format

Options

Version

Count

Uppercase

Include Hyphens

Generated UUIDs

Click "Generate" to create UUIDs

About UUIDs

UUID v4: Uses random or pseudo-random numbers. Has 122 bits of randomness, making collisions extremely unlikely.

UUID v1: Based on timestamp and MAC address. Can be useful when you need time-ordered UUIDs.

Format: xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
M = version, N = variant