Are the UUIDs guaranteed unique?

They're generated with crypto.randomUUID(), which produces cryptographically random v4 UUIDs with a vanishingly small collision chance.

Can I generate multiple UUIDs at once?

Yes, set the quantity and generate a batch of UUIDs in one click.

What version of UUID does it generate?

Version 4, the standard randomly generated UUID format used across most modern software.

Does UUID Generator upload my files to a server?

No. UUID Generator runs entirely in your browser using on-device processing, your files never leave your device.

UUID Generator

Generate random UUIDs and GUIDs.

Runs in your browser

Count

About this tool

Generating a UUID or GUID for a database key, a unique identifier, or a test value needs a properly random generation approach to guarantee the uniqueness the format promises. This tool generates random UUIDs and GUIDs, giving you properly formatted, genuinely unique identifiers instantly.

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