🎲UUID Generator

Generate UUIDs (v1, v4, v5) and GUIDs. All generation happens in your browser.

No data is sent to any server. UUIDs are generated locally and never leave your device.

Validate UUID

About UUIDs

UUIDs (Universally Unique Identifiers) are 128-bit values used to uniquely identify information in computer systems.

Supported versions:

  • v1: Time-based with MAC address
  • v4: Randomly generated (most common)
  • v5: Namespace-based using SHA-1 hash

Use cases: Database primary keys, distributed systems, session tokens, file identifiers