Fun & Random

Every tool on this page calls Math.random() in your browser — no server, no logged result, no shared seed. That's important if you're using one of these to decide something with a small group: the output is reproducible only by re-running, and there's no way for one participant to "see" another's roll. It's also why these tools are not appropriate for anything that needs auditable randomness (giveaways with a prize, tournament brackets, scientific sampling). For that, use a CSPRNG with a published seed.

A second thing worth noting: small samples look streaky. Ten straight 50/50 calls landing the same way have just a 1-in-1024 chance of happening — meaning roughly one in a thousand visitors will see something that looks "broken" but is actually working correctly. The same is true of dice runs and wheel spins. If a result feels rigged, it almost certainly isn't; short runs are just noisy. For more on that, see the Monty Hall Problem and the psychology of numbers. The MBTI Test sits here too — read how to interpret a result before taking it too seriously.