⚡UUID Generator

Instantly generate any UUID variant. Choose your UUID type, copy or download in bulk.

UUID Version 4: Fully random. The most common and recommended for general unique ID needs.

❓Frequently Asked Questions

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify objects, records, or data in computer systems.
Read more: Wikipedia

Which UUID version should I use?

UUID v4 is best for most general use-cases. Use v1 or v7 if you need time-ordered or sortable IDs. Use GUID for Microsoft compatibility.

Is UUID.tools secure?

Yes! All UUIDs are generated locally in your browser. Nothing is sent to our servers.

Can I generate UUIDs in bulk?

Yes. Select your UUID type, set the desired amount (up to 1000), and use the Download Bulk button to get a file of UUIDs.

What's the difference between UUID, GUID, and Nil UUID?

GUID is Microsoft's term for a UUID (usually v4, uppercase, with braces). Nil UUID is an all-zeros UUID used as a placeholder.

Where can I find specific UUID generators?

• UUID v1 | UUID v4 | UUID v7 | GUID | Nil UUID