UUID Generator (GUID v4)

Generate random UUID v4 (GUID) values instantly online. Copy single or bulk UUIDs for use in applications, APIs, databases and software development projects.

What is a UUID?

A UUID (Universally Unique Identifier), also known as a GUID, is a 128-bit unique value commonly used in software development, databases, APIs and distributed systems.

UUIDs help uniquely identify records, users, sessions, transactions and objects without requiring a central ID generator.

UUID v4 Example

550e8400-e29b-41d4-a716-446655440000

Common Uses

Database primary keys

API identifiers

Session tokens

Distributed systems

File and object identifiers

FAQ

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Are UUIDs unique?

UUID v4 values are randomly generated and have an extremely low chance of collision.

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What is the difference between UUID and GUID?

GUID is Microsoft`s term for UUID. They are generally interchangeable.