Coin flip: heads or tails?
Tap the coin to flip it. Every flip is a fair 50/50.
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Is a virtual coin fair?
Yes. Each flip uses your browser's cryptographic random generator, so heads and tails each have exactly a 50% chance, and every flip is independent of the last.
Streaks happen
Runs of the same side are more common than most people expect. In 20 flips, a streak of four or more heads or tails in a row happens more often than not. The tally below the coin shows your streaks as you go.
Questions people ask
Is a real coin 50/50?
Almost. Studies of real coin tosses found a very slight tendency to land on the side that started facing up.