Flipping a coin is easy when you are in the same room. Over a call or a group chat it falls apart: someone flips off-camera, announces the result, and everyone else just has to believe it. A shared room fixes that — one coin, flipped once, watched by all of you.
Create a roomOne of you creates a room and sends the link. The other opens it in any browser — phone or laptop, no app and no account. Each player takes a side, both press ready, and a single coin flips.
The result is not decided on anyone’s device. The server picks the outcome and a start time and sends both to every screen, so the coin lands within about a tenth of a second for everybody. There is no “my screen said heads” — there is only one flip.
You can, and for a lunch order nobody will care. When the stakes are who drives, who picks the film, or who takes the on-call weekend, the person holding the coin has an awkward advantage: a laggy video, a catch just out of frame, a second attempt nobody saw.
A room removes the person in the middle. Neither player flips the coin, neither can retry quietly, and both see the identical result at the identical moment. Every flip also carries a cryptographic proof you can check afterwards, so fairness is something you can verify rather than something you are told.
A room seats two players, and anyone else can follow along with the read-only watch link. Spectators see the same synced flip and a live count of who is watching, but cannot touch the outcome — useful for a team settling something in front of everyone, or a stream deciding between two options.
Rooms close on their own after thirty minutes of inactivity, and opening a new one takes a few seconds.
No. The room is a normal web link. It opens in any modern browser on a phone, tablet or computer, and nobody needs an account.
Neither player’s browser decides the result, so there is nothing on your side to tamper with. The server commits to a hidden seed before the flip and reveals it when the match ends, which lets anyone check the server did not pick the outcome after the fact.
Yes. Choose singleplayer when you create the room and you get the same coin without waiting for a second player.
Ready? Flip a coin online with friends — free, no signup, no ads.