UUID Generator

Create unique IDs for databases and code. They are generated in your browser.

Your files stay with you. Your files never leave your browser. This tool runs on your device: nothing is uploaded to our servers, so there is nothing for us to store or see.

How to use it

  1. Choose how many UUIDs you need.
  2. Pick the format: uppercase, no dashes or braces.
  3. Copy or download the list.

Questions people ask

Will two UUIDs ever be the same?
Version 4 UUIDs have 122 random bits, so the chance of a repeat is practically zero even across billions of IDs.
Is the randomness secure?
Yes. They come from the browser's cryptographic random number generator (crypto.getRandomValues), not Math.random.
Is a UUID the same as a GUID?
Yes. GUID is Microsoft's name for the same 128-bit identifier. Use the braces and uppercase options for the usual Windows style.
Are the UUIDs stored or logged?
No. They exist only in your browser tab.

Want this inside your own account?

Marketiism keeps your invoice numbers, GST reports, UPI payment links and WhatsApp reminders in one place. Leave your details and we'll call to set it up for your business, or start the trial yourself.

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Try it on your own business for two weeks.

14 days free, no card. If you get stuck setting up WhatsApp, we'll get on a call and do it with you.