UUIDs Generator

Generate UUID

UUID Version:

About UUIDs

A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. This tool supports generating UUIDs of version 1, 4, and 5.

Version 1: Generated from a host's MAC address and the current time. Time-based and can be predictable.
Version 4: Generated using random or pseudo-random numbers. Most commonly used version.
Version 5: Generated using a namespace identifier (itself a UUID) and a name (a string), hashed with SHA-1. Useful for creating deterministic UUIDs from specific inputs.

All UUID generation is performed in your browser.