Coin Flip
Flip one coin or up to 100 at once with crypto-random results and a running heads-versus-tails tally.
| # | Coins | Result | H | T | Heads % |
|---|
No flips yet — press “Flip the coin”.
Runs entirely on your device - nothing is ever uploaded.
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How to use the coin flipper
- Press Flip the coin for a single heads-or-tails result.
- Raise the count to flip up to 100 coins per round.
- Watch the tally and history, and reset whenever you want a fresh run.
Settling it fairly
A coin settles who goes first, picks a side, or breaks a tie in seconds. For multi-option decisions, spin the wheel spinner instead.
Are online coin flips really 50/50?
Each flip uses your browser's cryptographic random number generator, the same source behind secure tokens, so heads and tails land evenly over many flips - no patterns, no memory of the last result. Short runs still surprise: four heads in a row happens about 1 time in 16, which is exactly why the history table matters. For classroom probability demos, raise the count to 100 and watch the tally converge toward half and half.