Random Number Generator
Draw random integers or decimals in a range.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Generates random numbers within a range using the browser’s secure random source, with options for integers, decimals, uniqueness and sorting. Useful for giveaways, sampling and test data.
How to use it
- Set the minimum and maximum values.
- Choose how many numbers and whether they must be unique.
- Generate and copy the list.
Frequently asked questions
Are the numbers truly random?
They come from crypto.getRandomValues, which is suitable for draws and sampling. For cryptography, use the dedicated APIs in your language.
Why can unique mode fail?
The range contains fewer integers than the quantity requested, so uniqueness is impossible. The tool says so instead of looping.
Keep going
Related tools
Average Calculator
Mean, median, mode, range and standard deviation.
Random String Generator
Create random tokens, codes and IDs with a custom alphabet.
UUID Generator
Generate cryptographically random UUID v4 and time-ordered v7.
Percentage Calculator
Solve the three percentage questions in one place.
Percentage Change Calculator
Measure increase or decrease between two values.
Discount Calculator
Find the sale price and the amount saved.