100% Client-Side • RFC 4122 Standard

UUID (v4) Generator

Generating...

What is a Version-4 UUID?

A Universally Unique Identifier (UUID) is a 128-bit label used to uniquely identify information in computer systems. Version 4 UUIDs are generated using hardware-entropy pseudo-random numbers, ensuring a virtually zero percent chance of a collision.

Key Features & Uses

  • RFC 4122 Compliant: Generates the exact standardized format (e.g., xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx).
  • Database Keys: Perfect for primary keys in distributed database architectures (like NoSQL) where sequential IDs cause bottlenecks.
  • 100% Client-Side Secure: Executed entirely within your browser using the trusted crypto.randomUUID() API.