Purpose: Generate one or many random numbers within a chosen range - great for draws, lotteries, sampling and games.
Random Number Generator
The Random Number Generator produces unpredictable numbers within any range you choose - perfect for draws, games, sampling, and any time you need an impartial pick.
Set your range and go
Choose a minimum and maximum, decide whether repeats are allowed, and generate one number or a whole batch. It is handy for raffle and giveaway winners, picking a lottery-style set, assigning turns, choosing a sample for a survey, or seeding a game.
How random is it?
The generator draws on your browser's built-in randomness to give a uniform distribution across the range, so every value is equally likely. This is ideal for everyday fairness and fun. For high-stakes cryptographic keys, use a dedicated tool such as the Password Generator, which is built specifically for secure random output.
Frequently Asked Questions
Can I generate several numbers at once?
Yes. You can produce a batch of numbers in one go, with the option to allow or forbid duplicates.
Can I stop the same number repeating?
Yes. Turn off duplicates and each generated number in a batch will be unique within your chosen range.
Is it suitable for a fair prize draw?
Yes. The numbers are uniformly distributed, so every entry in the range has an equal chance of being picked.
Should I use it for passwords or security keys?
For passwords use the dedicated Password Generator, which is designed for cryptographically strong random output.
Related Calculators Tools
Browse all Calculators tools →
Privacy-first: client-side tools process your input in your browser. Free to use, no sign-up. See our Privacy Policy and Disclaimer.