Coin Flip FREE
Flip a coin once, or a thousand times and see the tally. Heads and tails are equally likely on every flip, and the run of nine heads you eventually get is ordinary.
Dice and coins
3d6 rolls three six-sided dice. 2d10+5 adds five to the total. d20 rolls one.
Result
Every draw is made in this tab by your browser's cryptographic random number generator. Your list, your numbers and the result are never sent anywhere and nothing is stored.
One flip, or a thousand
One flip answers the question you came with. A batch answers a different one: run fifty and the tally shows what fair actually looks like, which is rarely twenty five and twenty five and quite often thirty and twenty.
Every flip is independent. A coin that has come up heads nine times is exactly as likely to come up heads again, and the belief that it is due to correct itself is common enough to have a name: the gambler's fallacy. The tally is on the page so you can watch it not happen.
The flip is a single bit drawn from crypto.getRandomValues rather than from Math.random, so it is not seeded, not reproducible and not predictable from earlier flips. It happens in this tab and nothing is sent anywhere.
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