UUID Generator

Generate random version 4 UUIDs (Universally Unique Identifiers) for your applications, databases, or any other use case.

UUID Options

Version 4 UUIDs are generated using random numbers. Version 1 UUIDs are generated using the current timestamp and MAC address (simulated).

Generated UUIDs

Click the "Generate UUIDs" button to create UUIDs.

About UUIDs

A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. UUIDs are standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE).

Common UUID Uses:

  • Database primary keys
  • Session identifiers
  • Transaction IDs
  • Object identifiers in distributed systems
  • Unique file names

UUID Versions:

  • Version 1: Time-based with embedded MAC address
  • Version 2: DCE Security with embedded POSIX UIDs
  • Version 3: Name-based using MD5 hashing
  • Version 4: Random or pseudo-random generated
  • Version 5: Name-based using SHA-1 hashing

This generator creates UUIDs entirely in your browser. No data is sent to our servers, ensuring your privacy and security.