Encoding & Security

UUID Generator

Generate one or more RFC 4122 v4 UUIDs.

UUID Generator

uuidguidgenerator

Output

Generated UUIDs

Count

3f481cbb-d075-4188-96b1-7f7ce8954627
59008059-b4b4-4d48-b9e0-9df2bf5e2b55
94d3daed-0035-4638-88bd-8563afaa05d1
8f0b6549-a7ff-4a33-bce0-04696e8e0ea0
1c42ddb4-333b-471a-bcc3-97f1c516c2aa

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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