Question 1

What is a UUID?

Accepted Answer

UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify information in computer systems, formatted as 8-4-4-4-12 hexadecimal characters.

Question 2

Are generated UUIDs truly unique?

Accepted Answer

UUIDv4 is randomly generated with 122 bits of randomness. The probability of collision is astronomically low, making them effectively unique.

Question 3

What is UUIDv4?

Accepted Answer

UUIDv4 is the most commonly used version, generated from random or pseudo-random numbers. It requires no network address or timestamp, making it ideal for most applications.

UUID Generator

Related Tools

Frequently Asked Questions

About this tool