UUID generator

Make version-4 UUIDs, up to 100 at a time.

Generate one or many version-4 UUIDs in the browser from the cryptographic random source. No server is asked.

This stays in your browser. Nothing you type or drop here is sent to a server.

How to use this calculator

  1. Choose how many you need, from 1 to 100.
  2. Generate. Each id uses crypto.getRandomValues.
  3. Copy the list.

Questions

UUID generator: is the input uploaded?

No. The page reads and writes only in this browser. There is no account and no server round trip.

What should I check before trusting the result?

Generate one or many version-4 UUIDs in the browser from the cryptographic random source. No server is asked.

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