UUID Generator — Create Unique Identifiers Online
Generate UUID v4 identifiers. Free client-side UUID generator for database keys, API identifiers, and distributed systems.
Frequently Asked Questions
What is UUID?
A UUID (Universally Unique Identifier) is a 128-bit label used for unique identification in computer systems. UUID v4 is randomly generated.
Are UUIDs guaranteed to be unique?
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.
What is UUID used for?
UUIDs are commonly used as database primary keys, API identifiers, session identifiers, and distributed system identifiers.
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