Random Number Generator

Generate random integers in a custom range for giveaways, raffles, test data, and quick decisions.

Обработка выполняется локально в браузере. Данные не отправляются на сервер.

For this tool, processing runs locally in your browser and data is not sent to the server.

Случайное число is a free online tool. Генератор случайных целых чисел в заданном диапазоне для розыгрышей, жеребьёвки, тестовых данных и быстрых решений. Обработка выполняется локально в браузере. Данные не отправляются на сервер.

What it does

Output

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How to use

Set the minimum and maximum values for the range.
Choose how many random numbers you need.
If needed, enable unique values and sorting.
Click Generate.
Copy the result as comma-separated values, a column list, or JSON.

More about this tool

The Random Number Generator creates one or more random integers in a chosen range directly in your browser. It is useful for giveaways, raffles, picking a random option, games, test data, order numbers, documentation examples, and everyday scenarios. You can set the minimum and maximum, choose how many numbers to generate, allow or forbid duplicates, sort the output, and copy the result in a convenient format. Generation runs locally in your browser, and your data is not sent to the UtiLab server.

Runs in the browser
Data is not sent to the server
Generates numbers between min and max
Can output one or many numbers
Supports a no-duplicates mode
Can sort the result
Copy as comma-separated, column, or JSON
No registration required

Frequently Asked Questions

How do I generate a random number?

Set the minimum and maximum for the range, choose how many numbers you need, and click Generate.

Can I generate several numbers at once?

Yes. Enter the number of values you need. You can copy the result as comma-separated values, a column list, or JSON.

Can I generate numbers without repeats?

Yes. Enable the "No duplicates" mode. If you request more numbers than fit in the range, the tool shows an error.

Are the minimum and maximum included in the range?

Yes. If you set a range from 1 to 100, the result can be 1 or 100.

Is my data sent to the server?

No. Generation runs locally in your browser and is not sent to the UtiLab server.

Can I use negative numbers?

Yes. You can set a negative minimum and maximum, for example from -100 to 100.

Can I sort the result?

Yes. You can keep the generation order or sort ascending or descending.

Is this suitable for official lotteries?

The tool is fine for everyday giveaways, tests, and random selection, but it is not a certified generator for official lotteries or legally significant procedures.

What is the difference between crypto random and Math.random?

Crypto random uses the browser cryptographic random source when available. Math.random is a simpler fallback. For everyday tasks either is usually enough, but crypto random is preferable when available.

Do I need to register?

No. The tool works immediately without registration.

More about this tool

Runs in the browser
Data is not sent to the server
Generates numbers between min and max
Can output one or many numbers
Supports a no-duplicates mode
Can sort the result
Copy as comma-separated, column, or JSON
No registration required

Frequently Asked Questions

How do I generate a random number?

Set the minimum and maximum for the range, choose how many numbers you need, and click Generate.

Can I generate several numbers at once?

Yes. Enter the number of values you need. You can copy the result as comma-separated values, a column list, or JSON.

Can I generate numbers without repeats?

Yes. Enable the "No duplicates" mode. If you request more numbers than fit in the range, the tool shows an error.

Are the minimum and maximum included in the range?

Yes. If you set a range from 1 to 100, the result can be 1 or 100.

Is my data sent to the server?

No. Generation runs locally in your browser and is not sent to the UtiLab server.

Can I use negative numbers?

Yes. You can set a negative minimum and maximum, for example from -100 to 100.

Can I sort the result?

Yes. You can keep the generation order or sort ascending or descending.

Is this suitable for official lotteries?

The tool is fine for everyday giveaways, tests, and random selection, but it is not a certified generator for official lotteries or legally significant procedures.

What is the difference between crypto random and Math.random?

Do I need to register?

No. The tool works immediately without registration.