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UUID Generator

Generate random UUIDs (v4) for your projects. Universally unique identifiers for databases, APIs, and more.

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit identifier that is guaranteed to be unique across space and time. This generator creates version 4 UUIDs, which are randomly generated.

# UUID v4 Structure
xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
4 = version, y = variant (8, 9, a, or b)

There are approximately 5.3 undecillion (5.3 x 1036) possible v4 UUIDs, making collisions virtually impossible.

Common Uses

  • Database primary keys
  • API request identifiers
  • Session tokens
  • File names
  • Distributed systems