Random Number Generator
Generate random integers or decimals in any range — single or in bulk, optionally unique.
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How to Use Random Number Generator
To generate random numbers, set the minimum and maximum values to define your range, choose how many numbers to generate, and click Generate. Options include generating decimal numbers, ensuring all generated numbers are unique (no duplicates), and sorting the output in ascending or descending order.
The generated numbers appear in the output area and can be copied to your clipboard. This tool is useful for statistics sampling, creating test data, running lottery simulations, randomly assigning IDs, and any use case requiring unpredictable numbers within a defined range.
Frequently Asked Questions
Are the generated numbers truly random? expand_more
Yes. The tool uses the browser's crypto.getRandomValues API for cryptographically secure random number generation, not the less-random Math.random() function.
Can I generate random numbers without repeats? expand_more
Yes. Enable the 'Unique' option to ensure no number appears more than once in the output. Note that the range must be large enough to accommodate the requested count of unique numbers.
Can I generate random decimal numbers? expand_more
Yes. Enable the decimal option and specify the number of decimal places. The generator produces floating-point numbers within your min/max range.
What is the maximum range for random number generation? expand_more
There is no strict upper limit. You can set any minimum and maximum values including very large numbers. The unique option requires the range to contain at least as many integers as your requested count.
Can I use this for lottery number picking? expand_more
Yes. Set your minimum to 1, maximum to 49 (or whatever your lottery's range is), choose your required count, enable Unique, and click Generate to get a random lottery number selection.
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