What Is UUID (Universal Unique Identifier)?

UUID (Universal Unique Identifier) is a 128-bit value used to uniquely identify objects or entities in a computer system or on the Internet. UUIDs are 36-character strings designed to be globally unique, minimizing the chance of two UUIDs being the same, even across different computers or times. It is used to find applications as primary keys in databases, for generating unique filenames, in distributed computing systems, as session identifiers, and in various network protocols. UUIDs are persistent, scalable, and widely adopted for their reliability and ease of implementation in systems requiring unique identification.