Calculators

Random Number Generator

Produce random integers within any range using the browser's crypto API. Set the minimum, maximum and how many to generate (up to 1000), require unique values, and optionally sort the output. Results are validated for feasibility and easy to copy.

Examples

Input

Min 1, Max 100, count 5, unique

Output

7, 23, 41, 58, 92

How to use Random Number Generator

Define the range

Enter the minimum and maximum values for your random numbers.

Set the count and options

Choose how many to generate and toggle unique-only or sorted output.

Copy the results

Numbers appear in the list with a summary; copy or download them.

Why use this tool

Cryptographically secure (crypto API)

Unique values option

Optional ascending sort

Range and feasibility validation

Frequently asked questions

How do I generate a random number between 1 and 100?

Set the minimum to 1 and the maximum to 100, then choose how many numbers to generate. The tool uses crypto.getRandomValues for secure randomness.

How do I generate random numbers with no repeats?

Enable unique mode and choose a count that is no larger than the size of the range. This draws distinct values without duplicates.

Is this random number generator truly random?

Yes. It uses the browser's crypto.getRandomValues API and rejection sampling to avoid modulo bias, producing unpredictable, uniformly distributed integers.

Can I use it for giveaways and lucky draws?

Yes. Use the unique values option and keep the range equal to the number of entries for fair, transparent drawings.

What if I want 10 random numbers without duplicates?

Use unique mode with count set to 10 and make sure the range has at least 10 values. The tool will return 10 distinct numbers.

Found a bug or have an idea?

ToolOrbit is actively developed — feedback directly shapes what gets built next.

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