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UUID generator

Generate one or more random UUID version 4 identifiers.

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  1. 1 Choose how many ids you need.
  2. 2 Generate them.
  3. 3 Copy one id or the whole list.

How it works

A UUID is a 128-bit id written as 36 characters, including hyphens. Version 4 ids from this page come from the browser’s randomUUID function. They are suitable for local prototypes and request ids. They are not a sequence, so do not use them when you need sortable database keys.

Frequently asked questions

Which version is this?

Version 4, which is random rather than based on the time or a machine address.

Can two people get the same id?

It is possible in theory and negligible in practice for normal use. Do not treat that as a guarantee for a safety-critical system.

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