Random Number Generator
Generate random numbers in any range, with unique and sort options.
How to use the Random Number Generator
Step 1 — Set the range
- Enter the minimum and maximum (both included).
Step 2 — Choose how many
- Pick a count, up to 1,000.
Step 3 — Options
- Turn on No duplicates and/or sorting if needed.
Step 4 — Generate
- Press Generate and copy the results.
Frequently asked questions
They use your browser cryptographic random source (crypto.getRandomValues), which is far stronger than the basic Math.random and suitable for draws and fair selection.
Yes. Tick No duplicates and every number in the result will be different. If you ask for more than the range allows, it returns the full set of possible values.
Any whole-number range, including negatives. The minimum and maximum are both included in the possible results.
Yes, up to 1,000 numbers in one go, optionally sorted in ascending order.
Yes — with the unique option it gives fair, non-repeating picks. For picking names from a list instead of numbers, use the Random Picker.
About the Random Number Generator
This tool produces random whole numbers within a range you choose. Whether you need a single number, a handful of unique draws, or a long sorted list, it generates them instantly in your browser using a strong source of randomness.
Genuinely random, not pseudo-random
Most casual random functions, including JavaScript Math.random, are pseudo-random: fast, but predictable enough that they should not be trusted for anything that matters. This generator instead uses crypto.getRandomValues, the cryptographically secure random source built into modern browsers. The practical upshot is that the numbers are unpredictable and evenly distributed, which makes the tool fair for things like prize draws, sampling, and any situation where a biased result would be a problem.
Ranges, uniqueness, and order
You set the minimum and maximum, and both ends are included in the possible outcomes, which is what people usually expect but many tools get wrong. Negative numbers are fine. The No duplicates option draws without replacement, so every value in the result is distinct — ideal for picking lottery-style numbers or assigning unique slots; if you request more unique numbers than the range can supply, it simply returns every value in the range. You can also sort the output ascending, which is handy when the numbers represent positions or you want to scan them quickly.
Common uses
People reach for a random number generator constantly: choosing a winner by ticket number, rolling for tabletop games, sampling rows from a dataset, assigning random test groups, or simply settling a decision. Because everything runs locally and instantly, there is no waiting and nothing is sent anywhere. If you want to pick from a list of names or options rather than numbers, the Random Picker is the companion tool; to generate secure passwords, see the Strong Password Generator.