Example
A random selection from 1 to 10, e.g. 3, 9, 5
Random Number Generator
Generate one or many random numbers within any range instantly in your browser. Free online random number generator with duplicates option — no uploads.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Minimum — enter a numeric amount.
- Maximum — enter a numeric amount.
- How many — enter a numeric amount.
- Unique numbers (no repeats) — enter a yes/no option.
- Review your results — the key output is highlighted, with supporting figures below.
Loading calculator…
Results
Generated numbers
| Detail | Value |
|---|---|
| Count | |
| Note |
What is this calculator for?
Generate random whole numbers within a range, with optional uniqueness, suitable for picks, tests, and draws.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Minimum — enter a numeric amount.
- Maximum — enter a numeric amount.
- How many — enter a numeric amount.
- Unique numbers (no repeats) — enter a yes/no option.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Minimum
- a numeric amount · required
- Maximum
- a numeric amount · required
- How many
- a numeric amount range 1–1000 · required
- Unique numbers (no repeats)
- a yes/no option · optional
About This Calculator
This random number generator produces one or many random whole numbers between your chosen minimum and maximum.
Set the lower and upper bounds, choose how many numbers to generate, and toggle unique values to avoid repeats (useful for drawing prizes or choosing distinct test IDs). The tool uses the browser’s Math.random, which is suitable for casual and fair draw purposes.
Generation runs entirely in your browser.
Worked Examples
Frequently Asked Questions
Can numbers repeat?
By default yes. Enable the "Unique numbers" option to get distinct values (limited to the size of the range).
Are the numbers truly random?
They are generated via the browser's cryptographically-seeded Math.random — random enough for casual picks, draws, and test data.