UUID Generator

Generate random v4 UUIDs (universally unique identifiers).

Copied to clipboard

About This Tool

Generate universally unique identifiers (UUIDs/GUIDs) for databases, APIs, and software development. Creates version 4 UUIDs using cryptographic randomness with virtually zero collision probability.

How to Use

  1. Click Generate to create a new UUID.
  2. Copy the UUID to your clipboard.
  3. Generate as many as you need. Each one is guaranteed unique.

Frequently Asked Questions

What is a UUID used for?

UUIDs are used as unique identifiers in databases, distributed systems, and APIs where sequential IDs aren't practical. They're 128-bit values with 2^122 possible combinations.

Will two UUIDs ever be the same?

It's theoretically possible but astronomically unlikely. You'd need to generate 2.7 quintillion UUIDs to have a 50% chance of one collision.