Generate random numbers in any range
From drawing a raffle winner to rolling dice for a board game, we often need a number that nobody can predict or influence. This free random number generator produces one or many random whole numbers within any range you choose, with an optional no-duplicates mode for unique picks. Copy the whole list with a single click. It is fast, free and runs entirely in your browser, so there is nothing to install and no sign-up required.
How to use it
- Enter the minimum and maximum values that define your range.
- Choose how many numbers to draw, up to a thousand at a time.
- Optionally switch on unique mode so no number repeats, then press Generate.
The results appear immediately, laid out clearly and ready to copy. If you ask for more unique numbers than the range can provide, the tool tells you rather than failing silently, so you always know your request makes sense.
Popular uses
Random numbers settle a remarkable range of everyday questions. Run a fair giveaway by assigning entrants numbers and drawing a winner. Choose your lottery line without agonising over which numbers to pick. Roll virtual dice when the physical ones have gone missing. Select a random sample from a dataset for research or quality checks. Split a class or a group into teams without accusations of favouritism. Even settling a friendly disagreement — who pays, who goes first — becomes effortless when a neutral tool makes the call. The unique mode is especially handy whenever each number must appear only once.
What "pseudo-random" means
Computers generate what are technically called pseudo-random numbers. Rather than drawing on some physical source of chance, they use a mathematical algorithm that produces sequences which are, for all practical purposes, unpredictable and evenly distributed. For games, draws, raffles, simulations and sampling, this is exactly what you want — the numbers behave randomly and cannot be guessed in advance. The generator here uses your browser's built-in random source, which is high quality and more than sufficient for these everyday tasks.
When you need something stronger
There is one context where ordinary pseudo-randomness is not enough: security. Generating encryption keys, password reset tokens, or anything an attacker might try to predict calls for a cryptographically secure random generator, which is designed to be unguessable even by someone who studies its output. This tool is built for fairness and convenience in games and draws, not for cryptography. For lotteries, raffles, teaching, testing and fun, it is ideal; for security-critical keys, use a dedicated cryptographic generator instead.
Fair by design
The value of a random number generator in a giveaway or decision is that it is impartial. Nobody — not even you — can nudge the result toward a preferred outcome, which is what makes it trustworthy for public draws. Displaying every drawn number clearly, and offering a unique mode so the same entry cannot win twice, keeps the process transparent. Enter your range above, decide how many numbers you need, and let the tool make a genuinely neutral choice in an instant.
How to run a fair online giveaway
A random number generator is the backbone of a trustworthy giveaway, but a few extra steps make the whole process demonstrably fair. Start by giving every valid entry a sequential number — for example, entrant 1 through entrant 350 — and keep that list somewhere you can reference. Set the generator's range to match exactly (1 to 350 in this case) and, if you are drawing more than one winner, switch on the no-duplicates mode so the same entry cannot win twice. For real transparency, announce the rules and the total number of entries before you draw, so nobody can accuse you of changing the range to favour a particular result. Many organisers even record their screen during the draw and share it, which turns an invisible process into something the audience can verify. Because the generator here is impartial and cannot be nudged toward a preferred outcome, it gives your giveaway the neutrality it needs. Pairing that neutrality with a clear, pre-announced process is what transforms a simple random draw into one your participants genuinely trust.
Frequently asked questions
How do I generate a number in a range?
Set the minimum and maximum, choose how many numbers you want, and press Generate. Each result is a whole number between your minimum and maximum, inclusive of both.
Can I get numbers with no duplicates?
Yes. Turn on 'No duplicates' to draw unique numbers — ideal for raffles and giveaways. The range must be at least as large as the count you request.
Is it truly random?
It uses the browser's high-quality pseudo-random source, which is perfect for games, raffles, sampling and everyday use. It is not intended for cryptographic purposes.
What can I use it for?
Picking raffle and giveaway winners, choosing lottery numbers, rolling dice, selecting research samples, assigning teams and settling friendly decisions.