How to flip a coin online
- Assign the sides. Decide out loud what heads and tails mean before you toss — "heads we drive, tails we fly." Calling it after the fact is how arguments start.
- Tap the coin. Hit Flip the Coin and watch it tumble through the air. When it settles you get a clean heads or tails — never an edge, never a tie.
- Keep score. The tally under the coin counts your heads and tails as you go, so best-of-three, best-of-five or a marathon session all stay honest. It resets the moment you close the tab.
There's nothing to install and nothing to sign up for. The whole thing runs in your browser, and no result is stored or sent anywhere — refresh the page and the tally starts over at zero.
When a coin flip is the right tool
A coin toss is the fastest fair way to break a two-way tie. It shines whenever the choice is genuinely 50/50 and you just need something to make the call:
- Quick binary decisions. Left or right, now or later, this one or that one — a flip ends the dithering instantly.
- Settling friendly disputes. Who takes out the bins, who gets the last slice, who has to make the phone call nobody wants to make. A coin has no favourites, so nobody can argue with it.
- Sports and games. Kickoffs, first serve, who breaks in pool, which team picks first — the pre-game coin toss is a tradition for a reason.
- Tie-breakers. When two options are dead even and overthinking is only making it worse, outsource the last 1% to chance.
There's also a sneakier use worth knowing. Assign your two options, flip the coin — and the instant it lands, notice how you feel. Relief means the coin picked what you were quietly hoping for; a flicker of disappointment means you'd already decided the other way and just needed permission to admit it. Either way you're not actually bound by the result; the toss is a mirror. It's one of the oldest tricks for surfacing a gut you couldn't quite hear over the debate.
When you've got more than two options, a coin runs out of sides — reach for the spinner wheel instead. And if you want the same yes-or-no verdict with a little more drama, the yes or no wheel gives it a spin.
Is it really 50/50?
Yes — and honestly, this virtual coin is fairer than a real one. Here's why.
When you tap flip, the result is chosen using crypto.getRandomValues(), the cryptographically secure random number generator built into your browser. It's the same class of randomness the web uses to generate encryption keys — a world away from a quick Math.random(). We pair it with unbiased scaling (rejection sampling) so heads and tails each get exactly one half of the outcomes, with no rounding thumb on the scale. The tumble you watch is pure theatre; the fairness is settled the instant you press the button.
Real coins, it turns out, aren't perfectly fair. Physical tosses are famously — if faintly — biased: careful studies have found a coin lands a hair more often on whichever side started face-up, because of the way it wobbles as it spins. It's a tiny effect, but it's real. A web flip has no launch side and no wobble, so it sidesteps that bias entirely. Every toss here is a clean, memoryless 50/50.
A tiny history of the coin toss
People have been letting coins decide things for a very long time. The Romans played a version called navia aut caput — "ship or head" — after the two-faced god Janus stamped on one side of their coins and a ship's prow on the other. Heads or ships, the principle was identical to ours.
Coins have named places, too. As the story goes, the city of Portland, Oregon owes its name to a toss in 1845: two founders, one from Boston and one from Portland, Maine, each wanted to name the new settlement after home. They flipped a coin — best two out of three — and Maine won. Had it landed the other way, Portland might have been Boston, Oregon. Not bad for a single piece of copper.
The appeal has never really changed. A coin is small, decisive and gloriously impartial, and there's a reason "I'll flip you for it" ends more standoffs than any amount of debate. Sports leaned into it centuries ago and never let go: the pre-game toss for possession is one of the few rituals that has survived essentially unchanged from village greens to floodlit stadiums. Whether it's copper, gold or a few lines of code, the coin's job is the same — to take the decision out of anyone's hands and hand it, cleanly, to chance.
Beyond heads or tails
This page keeps it deliberately simple: one coin, one tap, one clean result. When you want more, Spin The Wheel — Pick Me for iPhone and iPad turns the humble toss into something special. Flip from a collection of 45+ realistic coins — dollars, euros, pounds, yen and more, each with real heads-and-tails artwork — keep a running flip history, and toss straight from your Apple Watch when your phone's in your pocket.
It's the same app that runs saved wheels, a full set of DND dice, a random number generator, team and pair makers, a finger chooser and a Magic 8 Ball — rated 4.6★ by more than 14,800 people, used by over 3 million, and free of ads from the first launch. If a coin has ever settled an argument for you, you'll feel right at home.