Heads or Tails
A coin flip you cannot drop, lose, or accuse anyone of catching funny.
What's on this wheel
- Heads
- Tails
How to use it
A real coin flip is not quite the perfect 50/50 people assume. Research from Stanford found that a flipped coin lands slightly more often on the face it started on, because of the way it wobbles in the air. It is a tiny bias, but it is real.
A digital spin has no such wobble. Both slices are exactly the same size and the draw comes from your browser's cryptographic random number generator, so it is as close to a true coin flip as you can get.
This is the standard tool for settling who goes first, who takes the bigger room, or who has to make the phone call nobody wants to make. If two options are not enough, add more lines and it becomes a general decision wheel.
Common questions
- Is this fairer than flipping a real coin?
- Marginally, yes. Real coins carry a small bias towards the side they started on; a digital wheel has exactly equal slices and no physics to skew it.
- Can more than two people use it?
- For three or more, replace Heads and Tails with everyone's names, or use the random name picker instead.
- Does it work offline?
- Once the page has loaded, the spin runs entirely in your browser, so a dropped connection will not stop it.