Random Number Generator
Professional Random Number Generator
Random Number Generator
Professional Random Number Generator
Features
- Fast, browser-based random number generator with instant results
- No registration or installation required — works directly in your browser
- 100% private — no data is sent to any server
- Works on all modern browsers including mobile devices
How to use
- Enter your input data in the provided field.
- Configure any options as needed.
- View the results instantly and copy or download the output.
Tips & Best Practices
- Uses Math.random — appropriate for picking lottery numbers, rolling for game mechanics, choosing winners from a list, and other fairness uses.
- NOT cryptographically secure. Don't use this for password generation or security tokens — use the random-string-generator tool instead, which uses crypto.getRandomValues.
- With "no duplicates" enabled the tool uses a Fisher-Yates shuffle — distribution is uniform across the range.
- For dice rolls, the dice-roller tool gives you d4 / d6 / d8 / d10 / d12 / d20 with optional crypto-backed randomness.
- Results aren't logged anywhere; the page is stateless.
FAQ
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Is my data private?
All processing happens in your browser. No data is ever sent to any server or third party.
Does it work offline?
Once loaded, the tool works entirely offline. All processing is done client-side with JavaScript.
Which browsers are supported?
Works in Chrome, Firefox, Safari, Edge, and all modern browsers on desktop and mobile.
Can I use the results commercially?
Yes, all output is yours to use freely in any personal or commercial project without restrictions.