UUID/GUID Generator

UUID Generator

Configuration

Version

v4 (Random)

v1 (Timestamp)

Quantity

Hyphens Uppercase Braces { }

UUID 5 Generated

About UUIDs

A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. The term Globally Unique Identifier (GUID) is also used, typically in Microsoft systems.

Version 4 (Random)

Generated using random or pseudo-random numbers. The probability of duplication is virtually zero, making it ideal for generating unique keys in distributed systems.

Version 1 (Time-based)

Generated using a timestamp and the MAC address of the computer. This guarantees uniqueness across space and time but can reveal the generating device's identity.