UUID / GUID Generator

Generate universally unique identifiers (UUIDs) instantly. 100% free, secure, and generated locally in your browser so they are never sent to a server.

Version

Quantity to Generate (Max 500)

Format Options

Include hyphens (e.g. 123e4567-e89b...)

Uppercase letters (e.g. 123E4567-E89B...)

What is a UUID / GUID?

UUID stands for Universally Unique Identifier (also known as GUID - Globally Unique Identifier in the Microsoft ecosystem). It is a 128-bit number used to uniquely identify information in computer systems.

Version 4 UUIDs are created using cryptographically secure random numbers. The chance of generating a collision (two identical UUIDs) is so drastically low that it is virtually impossible, making them perfect for database primary keys, session IDs, and tracking codes.