Random Number Generator
A free, browser-based converter. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Input
Min
Max
How many
Decimal places
Output
Enter values to see the result.
Runs entirely in your browser. Your input is not uploaded or stored.
How to use this calculator
- Set the min, max, how many, decimal places and whether duplicates are allowed.
- Click Generate.
How it works
Generates uniform random numbers in your range using the browser's Math.random — all client-side.
Worked example
Dice rolls. Min 1, max 6, count 5, no duplicates → five different 1–6 values.
Tips
- Runs entirely in your browser. Your input is not uploaded or stored.
Frequently asked questions
Is it cryptographically secure?
No — it's for general use (picks, sampling, testing), not security tokens.
Privacy?
Runs entirely in your browser. Your input is not uploaded or stored.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.