Encoding & Security

UUID Generator

Generate one or more RFC 4122 v4 UUIDs.

UUID Generator

uuidguidgenerator

Output

Generated UUIDs

Count

97f97e51-b345-4284-a81f-a20ad69ccaf8
bd535e5c-c8bc-4658-85e0-4ce154f7d92f
9018a3cc-7a72-46f5-b799-fba94347d71f
92809f38-1684-4047-be4a-8382e7aaa1a7
8da080b2-efa2-4481-b44d-208435f4b45d

Why UUID generation is common

A UUID generator is useful when you need unique identifiers for records, mock data, API payloads, or testing. It gives you IDs that are easy to copy into databases, fixtures, and app state.

This is especially helpful for developers working with forms, sample objects, migration scripts, or frontend state where duplicate IDs cause bugs quickly.

UUID generator FAQ

What is a UUID used for?

UUIDs are commonly used as unique identifiers for database rows, API resources, test fixtures, sessions, and application objects.

Why use a UUID instead of an incremental ID?

A UUID is easier to generate independently across clients and systems without coordinating a single numeric sequence.

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