Random Number Generator

Our Random Number Generator is a powerful, easy-to-use tool that creates cryptographically secure random numbers for any purpose. Whether you need a single random number for a quick decision or thousands of numbers for statistical analysis, this tool delivers instant results with complete privacy.

Setting Your Range

Start by entering your minimum and maximum values in the input fields. The default range is 1 to 100, but you can set any range you need. For example, set 1 to 6 to simulate a die roll, 1 to 52 for a card draw, or 0 to 1 for a binary choice. The generator supports both positive and negative numbers, so you can use ranges like -100 to 100 for centered distributions.

Choosing Number Type

Toggle between integer and decimal modes depending on your needs. Integer mode generates whole numbers only, perfect for lottery numbers, dice rolls, and counting applications. Decimal mode produces numbers with up to six decimal places, ideal for scientific simulations, probability experiments, and statistical sampling where continuous values are needed.

Generating Multiple Numbers

Use the quantity field to generate up to 1,000 numbers at once. This is invaluable for bulk operations like creating test datasets, running Monte Carlo simulations, or generating multiple lottery picks. Each number is generated independently using the cryptographic random number generator, ensuring true randomness across the entire set.

Removing Duplicates and Sorting

Enable the "No Duplicates" option when you need unique numbers — essential for lottery draws, random sampling without replacement, and tournament seeding. You can also sort your results in ascending or descending order for easier analysis. When no duplicates is enabled, the tool automatically ensures your requested quantity does not exceed the available range.

Copying and Using Results

Every generated number has its own copy button for quick individual copying. Use the "Copy All" button to copy the entire set to your clipboard, formatted for easy pasting into spreadsheets, documents, or code editors. The generator maintains a history of your last 10 generations, so you can reference previous results without regenerating them. Click "Clear" at any time to reset the tool and start fresh.

Security and Privacy

Unlike many online random number generators that use Math.random(), our tool uses the Web Crypto API which provides cryptographically secure randomness. This means the numbers cannot be predicted or reproduced, making them suitable for security applications. All processing happens in your browser — no data is ever transmitted to our servers.