Random Number Generator

Generate random numbers within a custom range

What is it and how does it work?

A random number generator produces an unpredictable number within a range you choose — say between 1 and 100, or 0 and 6 for a dice roll. You set the minimum and maximum, and each result is independent of the last, so there is no pattern to predict. It is the digital equivalent of rolling a die or drawing a ticket from a hat, useful any time you need a fair, arbitrary choice without bias from your own picking.

The randomness here comes from your browser's pseudo-random generator, which is excellent for everyday purposes — raffles, picking a winner, sampling, games, test data and breaking ties. It is worth knowing that this kind of randomness is not cryptographically secure: it should not be used to generate passwords, security tokens or anything an attacker has a reason to predict, for which a dedicated cryptographic generator exists. For choosing a number, a draw winner or a random sample, it is exactly the right tool, and it runs entirely on your device.

Common use cases

• Running a giveaway: pick a winning entry number fairly from a list of participants.
• Games and decisions: roll a die, pick a random team or settle a choice when you cannot decide.
• Generating test data: produce random values within a range to populate a form, spreadsheet or sample dataset.

Frequently asked questions

Are the bounds inclusive?

Yes — the minimum and maximum you set are both possible results. A range of 1 to 6 can return 1, 6 and every whole number in between, just like a physical die, so nothing at the edges is silently excluded.

Is this random enough to be fair?

For raffles, games, sampling and everyday choices, yes — each number in the range is equally likely and independent of previous results. It is statistically fair; it is only unsuitable for security uses where predictability must be impossible.

Can I get numbers with no repeats?

A standard generator can repeat values, because each draw is independent — like rolling the same number twice. To pick several unique numbers (a lottery-style draw), you need a mode that removes each chosen number from the pool rather than drawing independently each time.

Should I use this to generate a password?

No. This uses a pseudo-random generator that is not cryptographically secure, so it is unsuitable for passwords, tokens or keys. Use a dedicated password or secure-random generator, which draws from a source designed to be unpredictable to attackers.

Utility

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