UUID Generator
Generate one or many version-4 UUIDs.
About the UUID Generator
The UUID Generator creates random version-4 universally unique identifiers, one at a time or in bulk, ready to copy. UUIDs are useful as database keys, file names or request IDs where you need a value that is practically guaranteed not to clash.
Frequently asked questions
They are random 128-bit values, so the chance of two colliding is astronomically small — small enough to be ignored in practice, even across millions of generated IDs.
They use your browser's cryptographic random source where available, which is suitable for identifiers. UUIDs are not secrets, though, so do not use one as a password or token.