Spin the Wheel

Popular

Customizable decision wheel to pick random winners, make choices, select giveaways, and resolve contests.

Local Browser Execution: Zero server communication. Slices and spin math are calculated 100% locally in your browser with no pre-determined outcomes.
Slice Angle = 2π / Number of Items; Winner = floor(((2π - NormalizedAngle) % 2π) / Slice Angle)

Understanding Your Results

The winning slice is determined by the final landing position of the pointer at 0 radians after deceleration. Each slice occupies an equal angular segment (360° / N).

Practical Guidance & Next Steps

Use 'Eliminate winner slice after spin' if running multi-round prize drawings so the same participant cannot win multiple times.

What is this?

A dynamic, interactive decision wheel rendered directly on an HTML5 canvas. Add your own items, customize slice weights, and trigger a realistic physics-based spin to make decisions fun and transparent.

How does it work?

1. Enter your list of items (one per line or comma-separated). 2. Click the center wheel or 'Spin' button. 3. Watch the physics-based deceleration reveal the winning slice with confetti.

Why use it?

Perfect for settling debates, selecting student names in classrooms, picking winners for community giveaways, or deciding what to have for dinner without hesitation.

Technical Scope & Calculation Limitations

Physics momentum deceleration is simulated on HTML5 canvas. All slices have equal probability weighting in standard mode.

Frequently Asked Questions

Yes, you can enable 'Eliminate winner upon selection' to run multi-round drawings until all items are picked.
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