GUID/UUID Generator

Cryptographically Secure UUID Generation

Generate RFC 4122 compliant Version 4 UUIDs using the Web Crypto API. Perfect for creating unique identifiers for your applications.

About UUID/GUID

A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. Version 4 UUIDs are randomly generated and provide excellent uniqueness guarantees.

Features:

  • RFC 4122 Version 4 compliant
  • Cryptographically secure random generation
  • Cross-platform compatibility
  • Collision probability: ~5.3×10⁻³⁷

Common Use Cases:

  • Database primary keys
  • Session identifiers
  • Temporary file names
  • Distributed system correlation IDs