Details
A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. The term Globally Unique Identifier (GUID) is also used, mostly in Microsoft systems.
You can use them as unique identifiers for objects or files. They are also used in various protocols and standards.
While the probability of generating the same UUID is non zero, for most practical purposes, you can assume it is unique.
This tool will generate UUIDs version 4.