UUID Generator
How to generate UUIDs
Choose a version and how many UUIDs you need, up to 1,000 at a time, then press Generate. Each UUID goes on its own line, ready to copy.
FAQ
What is a UUID?
A universally unique identifier: a 128-bit value written as 32 hex digits in five groups, such as 3f2b8c1e-9a4d-4c7e-8b1a-2d6f0e9c5a7b. They are used as IDs for database rows, files and API resources.
Should I use UUID version 4 or 7?
Version 4 is fully random. Version 7 starts with a timestamp, so new IDs sort in creation order, which keeps database indexes compact. Both are defined in RFC 9562.
What is the difference between a UUID and a GUID?
Nothing in practice. GUID is Microsoft’s name for the same 128-bit identifier.