Question 1

What's the chance of a UUID collision?

Accepted Answer

For v4 UUIDs, the probability of two random values colliding is astronomically small (roughly 1 in 2.71 quintillion), making them safe for practical use as unique identifiers.

Question 2

Is UUID Generator free to use?

Accepted Answer

Yes, UUID Generator is completely free with no sign-up, usage limits, or paywall.

Question 3

Does UUID Generator send my data to a server?

Accepted Answer

No. UUID Generator runs entirely client-side in your browser. Nothing you enter is transmitted or stored anywhere, so it's safe to use with sensitive data.

Question 4

Can I use UUID Generator on mobile?

Accepted Answer

Yes, it works on any modern mobile or desktop browser since it's a lightweight, client-side tool with no app install required.

Question 5

Are the generated values cryptographically random?

Accepted Answer

Yes, generation uses the browser's crypto.getRandomValues API rather than Math.random, so output is suitable for IDs, tokens, and passwords.

UUID Generator

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