UUID Generator

Generate RFC 4122 version 4 (random) UUIDs in bulk. Everything runs locally in your browser.

About this tool

Create unique IDs for databases, APIs, and tests. Generate one or hundreds of version-4 UUIDs using secure browser randomness—nothing is sent to a server.

How to use

  1. Set how many UUIDs you need (1–500).
  2. Click Generate to create RFC 4122 version-4 UUIDs.
  3. Click Copy result to paste UUIDs into your app, SQL, or config.
  4. Regenerate anytime for fresh random IDs.

Which UUID version is generated?

Version 4 (random) UUIDs suitable for most application IDs.

Can I generate multiple UUIDs at once?

Yes. Set the count field and generate up to 500 UUIDs in one click.

Are UUIDs generated locally?

Yes. Generation uses crypto.randomUUID() in your browser—IDs are not stored on our servers.

Are these UUIDs guaranteed unique?

Version-4 UUIDs are statistically unique for practical purposes; collisions are extremely unlikely.

Do I need an account?

No signup required. Open the tool and generate UUIDs immediately.