Generate GUID (Globally Unique Identifier)

What is a GUID?

A GUID (Globally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. GUIDs are particularly useful when you need a unique identifier that’s guaranteed to be different from any other, across space and time, without relying on a central authority.

🔑 Key Characteristics of GUIDs:

  • Length: 128 bits (usually displayed as 32 hexadecimal characters).
  • Format: Commonly written in 5 groups separated by hyphens.
  • Used in: Databases (as primary keys), Software development (to identify objects, components, sessions), Distributed systems (to ensure uniqueness without coordination)