Coin Flip

Flip a fair coin for heads or tails — or a quick yes/no. Cryptographically fair, with a running tally, batch flips and your own custom labels.

?
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Ready. Press Flip or the space bar.
0Heads
0Tails
Free, no sign-up Cryptographically fair Works offline

Popular flips

Try a ready-made version.

Flip a coin 100 times Yes or no coin flip

How to Flip a Coin

One click, cryptographically fair.

1

Press Flip

Click Flip or press the space bar. A single coin spins with an animation and lands on heads or tails; the odds are exactly even.

2

Flip in bulk or rename the sides

Switch to 2–100 coins to see how the split falls, or type custom labels to settle any two-way decision. Want a multi-option draw? Use the Spin the Wheel.

3

Watch the tally

The running heads/tails count adds up across every flip, so you can see the results even out over time. Reset it whenever you want a fresh start.

Frequently Asked Questions

Is this coin flip fair?
Yes — this coin flip is fair. Each flip reads a random byte from the Web Crypto API (crypto.getRandomValues) and uses its last bit, which splits the 256 possible byte values exactly in half, so heads and tails are equally likely with no bias. This is a stronger, less predictable random source than the ordinary Math.random() that most simple flip-a-coin pages use. The flip happens entirely on your device — nothing is uploaded — and the running tally lets you confirm the results even out over many flips, as fair coins do.
Can I flip more than one coin at a time?
Yes — the coin flip can throw several coins at once. Use the count selector to flip 2, 5, 10 or 100 coins in a single click. Instead of animating each coin, the tool flips them all at once and shows how many landed heads and how many tails, along with the heads percentage — handy for probability demonstrations, quick simulations or settling several decisions in one go. The running tally at the bottom keeps adding up across every flip until you reset it.
Can I change heads and tails to my own choices?
Yes — heads and tails can be renamed to your own two choices. Open the custom labels and type your own two options — for example a name for each side, Yes and No, or Pizza and Tacos. The coin then shows the first letter of the winning side and the result readout spells out the full label, so you can use the flip to settle any two-way decision, not just heads or tails. Leave the labels blank to use the classic Heads and Tails.
Can I flip the coin with the keyboard?
Yes — the coin flips straight from the keyboard. Press the space bar to flip, as long as you are not typing in the labels box. It is the fastest way to run several flips in a row. The Flip button re-focuses itself after each flip, so you can also just keep pressing Enter or the space bar. Everything works the same on a phone by tapping the Flip button.

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