Random Number Generator
Generate random numbers within any custom range, one at a time or in bulk.
Options
5
Need more than 200 at once?
Set your range and generate a batch of random numbers.
Numbers are generated in your browser using a cryptographically secure random source.
How It Works
- 1Set your minimum and maximum
- 2Choose how many numbers you need
- 3Toggle duplicates and sorting on or off
- 4Numbers are generated instantly — copy or regenerate anytime
Common Uses
- Raffles and giveaway drawings
- Picking a winner or a random sample
- Games, dice rolls and decision-making
- Test and seed data for development
- Lottery number picks
- Randomized survey or A/B group assignment
Frequently asked questions
Numbers are generated using your browser's Web Crypto API (crypto.getRandomValues), a cryptographically secure random source, with rejection sampling to avoid any bias toward particular numbers in the range.
Yes. Turn off "Allow duplicates" and each number in the batch will be unique. If your quantity is larger than the range can hold, you'll be asked to widen the range or lower the quantity.
Up to 10,000 numbers in a single batch. Use the slider for quick amounts up to 200, or type a larger number directly.
Yes — the minimum and maximum can be any whole numbers, including negative ones, as long as the minimum is less than or equal to the maximum.
No. Every number is generated locally in your browser. Nothing about your session is sent to or stored on a Genovo server.
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