About Yes No Decide

Why this site exists

Most yes or no wheels online tell you they are fair and leave it there. Yes No Decide was built to show its working. The answer is picked by your browser's cryptographic random number generator before the wheel moves, every answer always has the same odds, and the page lets you run 10,000 test spins to check that for yourself.

The other half of the idea comes from research. A random answer is most useful for the feeling it gives you, relief or disappointment, which often shows what you wanted all along. So the wheel asks how each answer feels, and the page explains the studies behind that.

What the wheel does

• Answers Yes or No with exactly even odds, or Yes, No or Maybe at exactly 1 in 3 each.
• Spins by button, keyboard, tap, or a flick of the wheel, with sound, confetti and a sticker book along the way.
• Shares a result as an image, or sends your question to a friend so they can spin it.
• Runs in full screen for classrooms, streams and parties.

The full guide, with screenshots, is on the Yes or No Wheel page.

How the odds work

The answer is chosen first and the animation is drawn to land on it, so nothing about the spin, the flick or the number of sets can change the result. Rejection sampling keeps three answers at exactly 1 in 3 each. The details, and the live 10,000 spin test, are in Test the Odds.

What we do not do

• We do not save the questions you type. They stay in your browser.
• We have no accounts, no sign-ups and no mailing list.
• We do not predict the future or claim the wheel knows anything. It is random by design.
• We do not give advice. A random answer should never decide health, safety, money or legal questions.

Sources and corrections

Every research claim on this site is cited to the study it comes from, and stays within what that study found. If you spot a figure, a description of a study or anything else that is wrong, please get in touch. Corrections are treated as a priority.

Who makes this

Yes No Decide is built and maintained by Ehtisham Hussain, an independent web developer. I am not a psychologist or a statistician, which is exactly why the research is cited to its published sources and the odds are open to testing rather than taken on trust.

Questions, ideas and bug reports are welcome at yesnodecides@gmail.com.