UUID Generator

Generate unique identifiers (UUIDs v4) instantly.

Number of UUIDs (1-1000)

Generated UUIDs

About UUIDs

A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. Version 4 UUIDs are randomly generated and have extremely low collision probability.

Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

Use cases: Database primary keys, session IDs, file names, API keys, and more.

FAQ

A UUID is a 128-bit unique identifier. UUIDs are standardized by the Open Software Foundation (OSF) and are used globally to uniquely identify information without central coordination.

While theoretically possible, UUID collisions are astronomically unlikely. The probability is about 1 in 5.3 × 10³⁶ for version 4 UUIDs.

Yes! These UUIDs are cryptographically random and suitable for production use in databases, APIs, and applications.