UUID generator

Generate random version 4 identifiers.

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Your files are processed locally in your browser whenever possible.

How to use this tool

  1. Choose how many identifiers you need, from 1 to 100.
  2. Generate UUIDs and copy the results, one per line.

When it comes in handy

Version 4 UUIDs are useful for test data and identifiers where random uniqueness is needed.

Frequently asked questions

Is this tool free?

Yes. You can use it without creating an account or paying a subscription.

Is my data uploaded?

The processing happens locally in your browser. Your tool inputs and files are not sent to our server.

What should I know about the result?

UUIDs are randomly generated using crypto.randomUUID. Collisions are extremely unlikely but not mathematically impossible. They are not a substitute for access control.