Random Number Generator

Yes. This generator uses your browser's crypto.getRandomValues() API, which provides cryptographically secure random numbers. This is the same source of randomness used by password managers and encryption software — far more random than Math.random() or physical dice.

Yes! Toggle off the "Allow Duplicates" option and the generator will ensure every number in your result set is unique. Note that the quantity cannot exceed the range size when duplicates are disabled — for example, you can't generate 10 unique numbers from a 1–5 range.

You can set minimum and maximum values anywhere from -999,999,999 to 999,999,999. The generator supports both positive and negative ranges, so you can generate numbers like -50 to 50 or 1 to 1,000,000.

The lottery mode generates 6 unique numbers from 1 to 49, sorted in ascending order — matching the format used by many popular lotteries worldwide. Each draw is completely independent and uses cryptographic randomness.

All standard polyhedral dice used in tabletop RPGs: d4 (1–4), d6 (1–6), d8 (1–8), d10 (1–10), d12 (1–12), and d20 (1–20). You can roll any of them with a single click, and results appear with a visual dice animation.

The PINs are generated using cryptographic randomness, making them as unpredictable as possible. However, for sensitive applications like bank PINs, we recommend using your institution's official tools. Our generator is great for app lock codes, temporary access codes, or any situation where you need a random numeric code.

Your generation history is stored only in your current browser session and is never sent to any server. It resets when you reload the page. We keep the last 20 generations for your convenience.