Random Number Generator
Generate random numbers in any range — instantly and fairly.
About this tool
A random number generator picks numbers for you when you need a fair, unbiased choice. People use them for raffles and giveaways, lottery-style number picks, dice and game rolls, sampling and statistics, assigning teams, and any time they need to choose without favoritism. This tool gives you full control over the range and how many numbers you draw.
Set a minimum and maximum and the generator returns integers anywhere in that inclusive range. Choose how many you want — from a single pick up to 1,000 at once — and toggle whether duplicates are allowed. With duplicates off, every number in your draw is unique, which is perfect for raffles or assigning unique IDs. If you ask for more unique numbers than the range can supply, you simply get every available number in random order.
Results are generated with the Web Crypto API (crypto.getRandomValues), a cryptographically secure source, with rejection sampling to keep every outcome equally likely — no modulo bias. Everything happens locally in your browser; nothing is sent to a server, so it is fast and private.
Examples
Input
Min 1, Max 100, count 1
Output
e.g. 73
Output is random — a different number each time you click Generate.
Input
Min 1, Max 49, count 6, duplicates off
Output
e.g. 4, 17, 23, 31, 38, 45
Six unique numbers — like a lottery pick.
Input
Min 1, Max 6, count 3, duplicates on
Output
e.g. 2, 5, 2
Three dice rolls; repeats are allowed.
Common uses
- Drawing winners for a raffle, giveaway, or prize draw fairly
- Picking lottery-style numbers within a set range
- Rolling virtual dice or generating random game outcomes
- Selecting a random sample of rows or participants for a study
- Assigning people to teams or groups at random
- Generating unique random IDs or seat numbers without repeats
Frequently asked questions
Is this random number generator free?
Yes. It is completely free with no sign-up, no limits, and no ads in your results.
Are the numbers truly random?
They use the Web Crypto API (crypto.getRandomValues), a cryptographically secure random source, with rejection sampling so every number in the range is equally likely.
Can I generate numbers without duplicates?
Yes. Turn off 'Allow duplicates' to get a set of unique numbers — ideal for raffles, draws, and unique assignments.
What happens if I want more unique numbers than the range allows?
You get every number in the range exactly once, returned in random order. It never loops forever or hangs.
Are the min and max included in the results?
Yes. The range is inclusive, so both your minimum and maximum can appear in the output.
Embed this tool
Free to use on your own site. It stays fast and private for your visitors.
<iframe src="https://hypercho.com/embed/random-number-generator" title="Random Number Generator by Hypercho" width="100%" height="560" style="border:1px solid #d8cec3;border-radius:16px;max-width:720px" loading="lazy"></iframe>
<p style="font:13px sans-serif"><a href="https://hypercho.com/tools/random-number-generator" target="_blank" rel="noopener">Random Number Generator</a> by <a href="https://hypercho.com" target="_blank" rel="noopener">Hypercho</a></p>Related tools
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