Random Number Generator
Generate random integers or floating-point numbers in any range, with or without duplicates. Uses the browser's cryptographically secure random number generator. Browser-only, no signup.
Random Number
Generate random numbers
How to use this tool
1. Enter your input. Use the form above — all processing happens in your browser, no data is sent to any server.
2. View the result. The output appears instantly below the input. Copy any value with one click.
3. Explore related tools. See the related tools section below for adjacent calculators and converters.
4. Bookmark this page. This tool runs entirely client-side, so it works offline once loaded. Add it to your bookmarks for quick access.
Frequently Asked Questions
Everything you need to know about this currency pair
The tool uses the Web Crypto API's crypto.getRandomValues() function, which provides cryptographically secure random numbers. This is far better than Math.random(), which is a pseudo-random number generator (PRNG) not suitable for security purposes. The random values are generated locally in your browser.