Random Number Generator
Generate random numbers within a custom range with options for quantity, duplicates, and decimal precision.
How to Use
- Set the minimum and maximum values to define the range for your random numbers.
- Enter the quantity of random numbers you want to generate (up to 1,000).
- Choose whether you want integers only or decimals, and optionally uncheck "Allow Duplicates" for unique numbers only.
- Click "Generate Numbers" to see the results. Use "Generate Again" for a new set or "Copy All" to copy the numbers to your clipboard.
Frequently Asked Questions
Are the numbers truly random?
This tool uses the browser's built-in Math.random() function, which generates pseudorandom numbers. While these numbers are suitable for most everyday purposes such as games, drawings, and simulations, they should not be used for cryptographic or security-sensitive applications. For cryptographic randomness, a dedicated secure random number generator should be used.
What happens if I uncheck "Allow Duplicates" with a small range?
If you request more unique numbers than the range allows (for example, 20 unique integers between 1 and 10), the tool will generate as many unique numbers as possible within the range and display a notice. For integers, the maximum unique count equals (max - min + 1).
What is the maximum number of values I can generate?
You can generate up to 1,000 numbers in a single batch. This limit ensures the tool remains responsive in your browser. If you need more, you can generate multiple batches and copy the results.
Can I generate negative random numbers?
Yes. Simply set the minimum value to a negative number. For example, setting the minimum to -50 and maximum to 50 will generate random numbers in that range, including negative values, zero, and positive values.