Description
GUID:
Globally Unique Identifier, composed of 128 bits, equivalent to 16 bytes or 32 characters.
GUID format is {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}, where X represents a hexadecimal digit (0123456789ABCDEF). For example: 408E72F2-2387-465C-A64D-9A25C05B4733.
UUID:
Universally Unique Identifier, also known as universally unique identifier.
It is a 36-byte long string generated by separating a 32-byte string with 4 hyphens (-). For example: F65E182F-B9ED-4D0F-9E5C-FBA0A0A7203D.
Difference between GUID and UUID:
GUID is Microsoft's implementation of the UUID standard. UUID is defined by the Open Software Foundation (OSF). UUID has various implementations beyond just GUID.