How to use the Random Number Generator
- Set your preferences. Choose Minimum, Maximum, How many, No duplicates and Sort results.
- Click “Generate”. Fresh results are generated instantly using a secure random source.
- Copy your favourites. Copy individual results or everything at once, or download them.
- Generate again. Click again as many times as you like — it’s unlimited and free.
About this tool
Percentage, fraction, algebra, statistics, probability and number theory tools.
Read the complete Random Number Generator guide
Frequently asked questions
Is the Random Number Generator free to use?
Yes. The Random Number Generator on Gemma-4 is 100% free with no sign-up, no limits and no watermark. An optional free account lets you save favourites.
Is my data private?
Yes. Your inputs are processed instantly and are not stored on our servers.
Does it work on mobile phones?
Absolutely. The Random Number Generator is fully responsive and works on Android, iPhone, tablets and desktop browsers such as Chrome, Edge, Safari and Firefox.
Are the results truly random?
Yes — the generator uses your browser’s cryptographically secure random number generator (crypto.getRandomValues), so every result is unbiased.
Who is the Random Number Generator useful for?
It is popular with school and college students, teachers preparing examples, engineers and analysts — anyone who needs quick, reliable help with accurate maths without manual working.