About coin flipping
A fair coin flip is the simplest possible random event, with a 50% probability of heads and 50% of tails on each toss. Over a large number of flips, the tally should approach an even split, but individual sequences can deviate significantly from 50/50.
This tool uses the browser's cryptographically secure random number generator so each flip is truly independent and cannot be predicted. The running tally is useful for games, decisions, statistical demonstrations and teaching the law of large numbers.