Free · no sign-up

Flip a Coin

Heads or tails, decided by your browser's cryptographically secure random generator. Every flip is a true 50/50.

◉HEADS
★TAILS

Ready?

How it works

Flip a coin online: heads or tails

Press Flip and a coin spins and lands on heads or tails. The result is decided before the animation starts, by your browser's cryptographically secure random number generator, so every flip is a true 50/50 and the coin always lands on the side that was drawn.

Keep flipping to build a tally: the page counts heads, tails and total flips and shows the last 50 results, which makes it handy for best-of-three decisions and for showing a class how chance evens out over many flips.

What people use it for

  • Quick decisionsSettle who goes first, which film to watch, or which option wins.
  • Sports and gamesKick-off, serve or first move — with a tally for best of three.
  • Two-person giveawaysTwo finalists left? Let the coin decide on camera.
  • Teaching probabilityFlip 50 times and watch the heads/tails split approach 50/50.

Frequently asked questions

Is the online coin flip really 50/50?

Yes. The side is drawn with the browser's cryptographically secure random number generator, which gives heads and tails exactly the same chance. The animation only shows the result; it cannot change it.

Can I see previous flips?

Yes. The page counts heads, tails and total flips and shows your last 50 results until you press Reset.

Is it free?

Yes — free, with no sign-up and no limit on flips.

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