🎑Wheels & Deciders

Type what the slices should say, spin once, and let a machine with no opinions settle it.

βœ“ Tested & verified Updated: How the randomness works

A wheel is the most persuasive randomiser ever built, and the reason is theatre. A number appearing on screen invites argument; a wheel slowing to a stop in front of everyone does not. The odds are identical either way β€” the difference is entirely in how willing people are to accept the result.

These five pages are the same engine wearing different clothes. The wheel spinner takes whatever you type. The yes or no wheel is pre-loaded for a straight 50/50 and edits down to two slices or up to three options. The random name picker adds the remove-winner option that turns repeated spins into first, second and third place. The what to eat wheel is a dinner list you should replace with your own delivery radius. And rock paper scissors is the one that plays back.

Pick by how many outcomes you need. Two, and a wheel is arguably slower than a coin flip. Between three and about forty, a wheel is the clearest instrument there is. Beyond that, the labels stop being readable and a numbered draw or the list randomizer does the job with less squinting.

Frequently asked questions

Which wheel should I start with?

The main wheel spinner on the homepage, because every other wheel here is that one with a preset list. Paste your own entries and it becomes a name picker, a chore wheel, a restaurant decider or a giveaway drum. The specialised pages exist to save you the typing and to answer the question that goes with each use.

Do all the wheels use the same odds?

Yes β€” every entry is one slice of exactly equal size, so the chance per spin is one divided by the number of lines. The yes or no wheel is 50/50 because three of its six slices say Yes, not because anything is weighted behind the scenes. Duplicate a line and you duplicate a slice, which is the only weighting mechanism there is.

Can I share a wheel I have set up?

Copy the page link. Your entries travel in the address bar, so whoever opens it sees the identical wheel with the same options in the same order. That is also how you save one for next week β€” bookmark the page after editing. Nothing is stored on a server, so the link is the only copy.

Is a wheel fair enough to run a giveaway with?

For an informal draw, yes, provided you fix the entry list in public and spin once on camera. Every slice is provably the same size and the winner is drawn from your browser’s cryptographic generator. For very long entry lists a numbered draw with the random number generator is easier to film and audit.

How the randomness works

Every wheel on this page picks its winning slice by drawing from crypto.getRandomValues, the browser’s cryptographically secure random generator, and reducing it to the number of entries with rejection sampling β€” so no slice is even fractionally more likely than another. The winner is decided the moment you press the button and the animation simply rotates to it, which is why spin strength and duration cannot influence anything. Entries are read from the text box and mirrored into the page URL for sharing; nothing is stored or sent anywhere. The full write-up is on the methodology page.

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More ways to leave it to chance

Seven dinners, drawn

Weekly

Seven dinners for the week ahead, spun fresh every Friday. Deciding what to eat is the tiring part, not cooking it.

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