zacdaddytools

Random Number Generator

Generate secure random numbers for games, draws and everyday decisions.

Set your range

Choose the smallest and largest possible values.

Secure

Generate up to 100 numbers at once.

Your result

Fresh randomness every time you generate.

Ready to roll

Set your range and press generate to create your random numbers.

Generated securely and privately in your browser.

Generate one number or a whole set

Enter inclusive minimum and maximum whole numbers, then choose a quantity from 1 to 100. The range can include negative values. Enable unique numbers when each result must appear only once, then generate and copy the comma-separated output.

If the unique quantity is larger than the number of possible values, the tool warns you instead of silently returning duplicates or an incomplete result.

How randomness is produced

The generator uses the browser cryptography interface rather than the simpler pseudo-random function commonly used for visual effects. It also rejects out-of-range raw values that could otherwise make some integers slightly more likely than others after division into the requested range.

Inclusive range example

A range from 1 to 6 contains six possible results: 1, 2, 3, 4, 5 and 6.

Requesting six unique numbers returns each value once in a random order.

Appropriate uses and limits

The tool is useful for games, classroom activities, informal draws, sampling and everyday choices. It has not been independently audited or certified for regulated gambling, legal lotteries, scientific experiments with formal methodology, or generating secret cryptographic keys.

FAQs

Questions about the random number generator

Are the minimum and maximum included?

Yes. Both endpoints can appear in the generated results.

Can the generator avoid duplicates?

Yes. Enable unique numbers, provided the chosen range contains at least as many values as the requested quantity.

Can I use negative numbers?

Yes. Minimum and maximum can be whole numbers between −1,000,000,000 and 1,000,000,000.

Is this suitable for a regulated prize draw?

It is intended as a general browser utility and is not a certified draw system. Check the applicable rules and audit requirements.