GUID Generator

Globally Unique Identifier

Generating...

About

GUID (Globally Unique Identifier) is a Microsoft term for UUID. It's a 128-bit identifier that is guaranteed to be unique across space and time. GUIDs are commonly used in Windows development and are essentially the same as UUIDs, often displayed in uppercase format. The term GUID is primarily used in Microsoft technologies (COM, .NET, Windows Registry) while UUID is the more universal term. Both follow the same RFC 4122 standard.

Use Cases

  • •Windows COM components and interfaces
  • •.NET Framework applications
  • •Windows Registry keys
  • •Microsoft SQL Server unique identifiers
  • •Windows API and system programming
  • •Cross-platform applications using Microsoft conventions

How to Generate

Library

uuid

NPM Package

npm install uuid

Code Example

import { v4 as uuidv4 } from 'uuid';
const guid = uuidv4().toUpperCase();
console.log(guid); // e.g., '9B1DEB4D-3B7D-4BAD-9BDD-2B0D7B3DCB6D'

Note: GUID is Microsoft's term for UUID. They are functionally identical, with GUIDs often displayed in uppercase.