Random Number Generator
Generate one or many random integers in any range, with or without duplicates.
About randomness
Numbers come from crypto.getRandomValues for cryptographically strong randomness, mapped uniformly into your range.
Frequently Asked Questions
Is the Random Number Generator free to use?
Yes, the Random Number Generator is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the Random Number Generator?
Absolutely. All calculations performed by the Random Number Generator happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the Random Number Generator?
Our Random Number Generator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the Random Number Generator on my mobile phone?
Yes! The Random Number Generator is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.