UUID Generator
Generate multiple unique UUID v4 identifiers instantly.
About UUID Generator
What is UUID Generator?
The UUID Generator creates Universally Unique Identifiers (UUIDs), also known as GUIDs. UUID v4 identifiers are randomly generated 128-bit numbers typically used as unique database keys, session tokens, or identifiers in distributed systems. Each generated UUID has a statistical probability of being unique across all space and time.
How to Use
- 1Choose how many UUIDs you want to generate (up to 100 at once).
- 2Click the "Generate" button.
- 3Copy individual UUIDs or copy all of them at once with the "Copy All" button.
Frequently Asked Questions
What is the difference between UUID and GUID?
There is effectively no difference; UUID is the standard term used globally, while GUID is Microsoft's term for the same thing.
Are these UUIDs really unique?
Yes. UUID version 4 has a 1 in 2^122 chance of collision, which is practically impossible.
100% Private — Your Data Never Leaves Your Browser
Uses the browser's crypto.randomUUID() API (or crypto.getRandomValues() fallback) to generate cryptographically secure random UUIDs compliant with RFC 4122.