Guide

What is a UUID or GUID?

A UUID or GUID is a 128-bit identifier used to create values that are highly unlikely to collide.

Where UUIDs Are Used

Developers use UUIDs for database records, distributed systems, request tracing, file names, test data, and public API identifiers.

UUID v4

UUID v4 is randomly generated. It is commonly used when an application needs a unique identifier without asking a central database for the next number.

Example

3f0f8c5a-7c22-4b1f-9f07-2f7f9a8c2041

Try It

Open the GUID / UUID Generator to create one or many identifiers.