Random Number Generator

Generate one or thousands of random numbers in any range

HISTORY

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Frequently Asked Questions

Is the Random Number Generator free?
Yes — completely free, no sign-up needed.
Is the Random Number Generator truly random?
Yes — it uses your browser's built-in random number generator which produces statistically random results.
Can I use the Random Number Generator on mobile?
Yes — works on any device.
Do I need to sign up?
No account needed — use it instantly.

Embed This Tool

Add this Random Number Generator to your website or blog for free — just paste this code:

<iframe src="https://random-number-generator.tabutility.com/" width="100%" height="600" frameborder="0" style="border-radius:12px" title="Random Number Generator by Tabutility"></iframe> <p style="font-size:12px"><a href="https://random-number-generator.tabutility.com/" target="_blank" rel="noopener">Random Number Generator</a> by <a href="https://tabutility.com/" target="_blank" rel="noopener">Tabutility</a></p>
Free to use — the credit link helps others find the tool
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This random number generator produces one number or thousands within any range you choose, with options to remove duplicates and sort the results. It is built for raffles and giveaways, picking lottery-style numbers, assigning tasks, sampling data, running simulations, classroom activities, or any time you need fair, unbiased random values fast. Everything runs in your browser, so results are instant and your inputs never leave your device.

How the Random Number Generator Works

The tool draws from your browser's pseudo-random number generator and scales each value to fit the minimum and maximum you set, inclusive of both ends. Every integer in the range has an equal chance of appearing on any given draw, so no value is favoured. When you enable "no duplicates," it draws without replacement so each number can appear only once — ideal for prize draws.

Generating in bulk works the same way, just repeated: request 1,000 numbers and the tool performs 1,000 independent draws (or unique draws if duplicates are off), then optionally sorts them so the output is easy to scan.

Example 1: Pick a raffle winner from 250 entrants by generating one number between 1 and 250 — each ticket has exactly a 1-in-250 chance.
Example 2: Need six unique lottery-style numbers from 1 to 49? Set the range, count to 6, turn on "no duplicates," and sort the results.

Frequently Asked Questions

Are these numbers truly random?

They are generated by your browser's high-quality pseudo-random algorithm, which is more than random enough for games, giveaways, sampling, and everyday use. For cryptographic security you would need a dedicated secure generator.

How do I generate numbers with no repeats?

Enable the "no duplicates" option. The tool then draws without replacement, guaranteeing every number in your result set is unique — perfect for raffles and seating charts.

Is the range inclusive of the minimum and maximum?

Yes. If you set 1 to 10, both 1 and 10 can be generated, and every integer in between has an equal chance.

Can I generate thousands of numbers at once?

Yes. Set the count to as many numbers as you need and the generator produces them instantly, with an option to sort them in order for easier reading.