Question 1

What is UUID?

Accepted Answer

A UUID (Universally Unique Identifier) is a 128-bit label used for unique identification in computer systems. UUID v4 is randomly generated.

Question 2

Are UUIDs guaranteed to be unique?

Accepted Answer

While collisions are theoretically possible, the probability is extremely low (~1 in 2^122 for v4). They are safe for practical use in distributed systems.

Question 3

What is UUID used for?

Accepted Answer

UUIDs are commonly used as database primary keys, API identifiers, session identifiers, and distributed system identifiers.

UUID Generator

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UUID Generator

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