Online UUID (GUID) Generator
Version 4 UUID (GUID)
What is a Version 1 UUID (GUID)?
A Version 1 UUID or GUID is a universally unique identifier, it is generated using a timestamp and the MAC address of the computer on which it was generate. You are guaranteed to get a completely unique ID, unless you generate it from the same computer, and at the exact same time.
UUID (GUID) UUID1 vs UUID2)
UUIDs Are just 128 bit, When you try v1 and v4 it look the same, but try to generate multiple uuid v1 and v4, in uuid4 each other are different than uuid1 that be more apparent.
Bulk Version 4 UUID (GUID) Generation
What is a version 4 UUID (GUID)?
A Version 4 UUID is a universally unique identifier is much simpler to comprehend that is generated using random numbers. The Version 4 UUIDs produced by this site were generated using a secure random number generator.
which one do we go with uuid1 or uuid4?
Go with v4. The chances of collision are practically none. If you actually want your UUID to give some indication of the date and computer in which it was created, then UUID v1 may be for you.