Are both range endpoints included?

Yes. A range from 1 to 10 can produce 1, 10 or any integer between them.

What happens if I request more unique numbers than the range contains?

Generation is blocked with a validation message. Expand the range, reduce Quantity or allow repeats.

How are the numbers randomized?

The generator uses the browser's cryptographically secure random source with rejection sampling, avoiding the uneven distribution caused by simple modulo shortcuts.

Can it generate decimal values?

No. Minimum, Maximum and Quantity accept whole numbers only; this tool is specifically designed for random integers.

Back to Generators & Randomizers

Random Number Generator

Generate one or many secure random integers from your own inclusive range, with optional uniqueness and copy-ready results.

MinimumMaximumQuantity

Unique numbers

Numbers are generated locally in your browser using the Web Crypto API. Inputs and results are not stored or sent to a server.

How to use Random Number Generator

1
Enter the Minimum and Maximum integers for the inclusive range.
2
Set Quantity to choose how many numbers to produce, up to 100.
3
Enable Unique numbers when no result should repeat within the generated set.
4
Click Generate numbers and review the values in their generated order.
5
Copy the complete result when you need to use the numbers elsewhere.

Frequently asked questions

About Random Number Generator

A random integer is useful only when its boundaries and repetition rules are unambiguous. This generator treats both endpoints as eligible, supports negative values and can return a single answer or a batch of up to 100 numbers. Unique mode samples without replacement, so duplicates cannot quietly enter the set.

Randomness comes from Web Crypto rather than a predictable general-purpose function. Range validation also protects safe-integer arithmetic and catches impossible unique requests before generation. The resulting values are produced and copied locally.