🎡 Decision Wheel Spinner

What Is a Decision Wheel?

A decision wheel is a spinning wheel divided into colored segments, one for each of your options. You spin it, it slows down with a realistic easing motion, and the pointer lands on a winner. It is the digital version of drawing a name from a hat, and it works for the same reason the hat works: everyone can see the process, nobody can steer the outcome, and the result is final. Teachers use wheels to pick students fairly, teams use them to assign tasks nobody volunteers for, streamers use them for giveaways, and friend groups use them to settle the eternal question of where to eat. The wheel above draws itself on a canvas, supports up to 24 options, and plays a synthesized tick sound as the segments fly past the pointer.

Fairness: How the Randomness Works

Every spin is decided by a single random angle drawn from window.crypto.getRandomValues(), the same cryptographically secure random source browsers use for security keys. It is not Math.random() and it is not a rigged animation: the animation is theater built around a genuinely random final angle, and every segment has exactly the same probability on every spin. When you draw multiple winners, each winner is removed from the wheel before the next spin, exactly like pulling names from a hat without putting them back. That keeps multi-winner draws fair too: no name can be drawn twice, and the odds stay equal for everyone still in the drum. Nothing is sent to any server, so no outside party can see or influence your draw.

Great Uses for a Decision Wheel

Tips for Running a Fair Draw

First, lock the list before you spin. Adding or removing names mid-draw is the fastest way to start an argument, so finalize the options, then spin. Second, for anything with real stakes (prizes, money, grades), spin with witnesses: share your screen or gather people around, and let the history list serve as your record of results in order. Third, decide the removal rule up front. This wheel removes winners when you draw more than one, which is the standard raffle behavior. If your game allows repeat winners, draw one at a time instead. Fourth, keep segments readable. With 24 options the slices get thin, so short labels work best; the wheel truncates long names automatically. Finally, remember that random means streaks happen. If the same person wins twice in a row across separate single-winner spins, that is not a bug, it is probability doing its job.