Cheetah UUID Generator

Generate random UUIDs (Universally Unique Identifiers) version 4 instantly. Generate one or ten at a time. Used by developers for database primary keys, API request IDs, session tokens, file naming, and any scenario that needs a globally unique identifier.

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as 32 hexadecimal digits in five groups (e.g., 550e8400-e29b-41d4-a716-446655440000). Version 4 UUIDs are randomly generated, making the chance of a collision (two identical UUIDs) astronomically small — roughly 1 in 5.3 billion billion.

When would I need a UUID?

Database records that need unique IDs without a central authority, distributed systems where multiple servers create records simultaneously, API idempotency keys, file naming to avoid conflicts, session identifiers, and testing/development where you need realistic unique identifiers. If you've ever needed to answer "give me a unique ID," a UUID is the standard solution.