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Random Number Generator

Generate random numbers with custom range

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About This Tool

Random Number Generator is an online tool that lets you generate random numbers within a custom range. You can specify minimum and maximum values, choose how many numbers to generate, and optionally enforce no duplicates, all running locally in your browser.

Key Features

Quick Preview

Use Cases

random number generator

Frequently Asked Questions

How many random numbers can I generate at once?

You can generate up to 1000 random numbers in a single operation. Simply set the count field to your desired number and click Generate.

What does the No Duplicates option do?

When the No Duplicates checkbox is enabled, each generated number will be unique within the specified range. If the range is too small to produce the requested count of unique numbers, you will receive a warning message.

Can I use negative numbers in the range?

Yes, you can enter negative values for the minimum or maximum. The tool will generate random integers within whatever range you specify, including negative numbers.

Are the generated numbers truly random?

The tool uses JavaScript's Math.random() function, which produces pseudo-random numbers suitable for general purposes like games, sampling, and testing. It is not intended for cryptographic security.

What happens if Min is greater than Max?

The tool will display an alert indicating that Min cannot be greater than Max. Simply swap the values to correct the range and try again.