Is this suitable for anything requiring true randomness, like security or gambling?

No — this uses standard JavaScript pseudo-randomness, which is fine for games, raffles, and everyday decision-making, but not for cryptographic or security-sensitive purposes.

Can I generate decimal numbers?

Yes — turn on the decimal option to generate numbers with up to two decimal places instead of whole numbers.

Random Number Generator

Generate one or more random numbers within any range — whole numbers or decimals, with an option to avoid duplicates.

Minimum

Maximum

How many

Number type

Uniqueness

How It Works

Setting a range

Enter a minimum and maximum value — every generated number falls somewhere within that range (inclusive).

Multiple unique numbers

When generating more than one number, turning on "unique" avoids repeats, which is useful for things like drawing raffle numbers or shuffling a small set of values.

Example Use Case

Generating 5 unique whole numbers between 1 and 49 is a common way to quickly pick lottery-style numbers.

Common Mistakes

Requesting more unique numbers than fit in the given range (e.g. 10 unique numbers between 1 and 5) — this isn't possible and the calculator will return as many as it can.
Expecting the exact same numbers on every generation — that's the point of randomness, results will differ each time you generate.

Frequently Asked Questions

Is this suitable for anything requiring true randomness, like security or gambling?: No — this uses standard JavaScript pseudo-randomness, which is fine for games, raffles, and everyday decision-making, but not for cryptographic or security-sensitive purposes.
Can I generate decimal numbers?: Yes — turn on the decimal option to generate numbers with up to two decimal places instead of whole numbers.