Free Random Number Generator — Any Range
Updated July 2026
Generate random numbers between 1 and 100, 1 and 10, or any custom range. Set quantity, exclude duplicates, sort results — free random number picker.
A random number generator picks numbers with no predictable pattern — every number in the range has an equal chance of being selected. This tool uses your browser's built-in cryptographic random function for true statistical randomness, suitable for games, raffles, classroom activities, and decision-making.
Common uses for random numbers
- Raffles and giveaways: number each entry and generate a random winner
- Games and dice: simulate dice rolls or generate random outcomes
- Statistics and sampling: pick random items from a list for unbiased selection
- Decision-making: choose between options by assigning each a number
- Random PINs and codes: generate a number within a specific range
Is this truly random?
This tool uses crypto.getRandomValues() — the same API used by password managers and cryptographic applications. It produces statistically unbiased numbers, unlike Math.random() which uses a predictable pseudorandom algorithm.
How the Random Number Generator works
Enter the minimum value in the Min field and the maximum value in the Max field.
Enter how many random numbers you want to generate in the Count field.
Check "No duplicates" if each number should appear only once (requires range ≥ count).
Click Generate to instantly produce your random numbers. Click again for a new set.
Tips & tricks
- Use the Random Number Generator on a shared screen during group activities to keep decisions transparent and fair for everyone.
- Combine the Random Number Generator with other random generators on Allio Tools to build more complex decision workflows.
- Results are generated fresh every time using your browser's cryptographically seeded random number generator — no repeating patterns.
Frequently Asked Questions
Are the random numbers truly random?
The tool uses the Web Crypto API (window.crypto.getRandomValues) for cryptographically secure random number generation, making it suitable for lotteries, security keys, and statistical sampling — not just pseudorandom output.
Can I generate random numbers without duplicates for a lottery?
Yes. Enable "No duplicates" and set your range. For a 6/49 lottery, set min=1, max=49, count=6, no duplicates. Each draw gives unique numbers within the range.
Can I generate random decimal numbers?
Yes. Toggle to decimal mode and specify the number of decimal places. The tool generates floating-point numbers uniformly distributed between your min and max values.
What is the maximum range and count I can use?
The tool supports ranges up to JavaScript's safe integer limit (±9 quadrillion). Count can be up to 10,000 numbers per generation. For larger datasets, export as CSV.
Can I use this to generate a random password?
For a numeric PIN, yes. For a full alphanumeric password with symbols, use the dedicated Password Generator tool which offers more character set options.
Is the Random Number Generator free to use?
Yes, the Random Number Generator on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Random Number Generator work?
Generate random numbers between 1 and 100, 1 and 10, or any custom range. Set quantity, exclude duplicates, sort results — free random number picker. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the Random Number Generator?
No installation needed. The Random Number Generator runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the Random Number Generator?
Completely safe. The Random Number Generator processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the Random Number Generator work offline?
After the page loads for the first time, the Random Number Generator works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.
Are the results from the Random Number Generator truly random?
Yes. The Random Number Generator uses your browser's built-in cryptographically seeded random number generator, which provides high-quality unpredictable randomness suitable for games and fair decisions.
Can I customise what the Random Number Generator generates?
Yes. Where customisation options are available, you can add your own items, set numeric ranges, or adjust parameters before generating. Default settings are designed for the most common use case so you can get an instant result without any configuration.
Does the Random Number Generator work on all browsers?
Yes. The Random Number Generator is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the Random Number Generator?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.