Question 1

Is this random number generator truly random?

Accepted Answer

This tool uses the browser's crypto.getRandomValues() API, a cryptographically secure source drawing from your device's system entropy. It is computationally indistinguishable from true randomness for all everyday purposes.

Question 2

Can I use it for contests or giveaways?

Accepted Answer

Yes. The generator is unbiased and does not favour any outcome. Each result is produced independently with no connection to previous outputs.

Question 3

Is my data safe? Are numbers stored anywhere?

Accepted Answer

No data is stored or transmitted. All generation happens locally in your browser. The numbers are displayed on your screen and discarded when you leave or refresh the page.

Question 4

What is the difference between pseudo-random and cryptographically secure random?

Accepted Answer

A pseudo-random generator uses a deterministic algorithm. If you know the seed, you can reproduce the sequence. A CSPRNG additionally draws on unpredictable physical entropy from your hardware and OS, making the output computationally infeasible to predict.

Question 5

Do I need to sign up or download anything?

Accepted Answer

No. This is a fully browser-based random number generator. No account, installation, or download is required.

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