Roulette Wheel

Roulette Wheel: uses, fairness, and tips

Common use cases

• Giveaways & raffles: pick winners from long lists quickly.
• Classrooms: randomize presentation order or question assignments.
• Meetings & standups: choose speaking order or topics.
• Games & party activities: decide turns, challenges, or prizes.
• Task rotation: distribute chores or on-call rotations fairly.
• Creative prompts: select themes, tools, or constraints at random.

How selection works

The tool splits the wheel into equal angular segments based on your list. A random index is selected using Math.random(), then the rotor animates to align that segment under the pointer. The chosen entry is logged locally (recent winners) for transparency.

Fairness notes

• Each item has equal probability in a single spin.
• For “no-repeat” sessions, remove winners from the list between spins.
• For audits, snapshot the input list and timestamp before spinning.

Tips

• Keep item labels concise for readability on dense wheels.
• Use the Spinner for ≤6 items (3D cube), or the Wheel tool for visual variety.
• Project the wheel to a screen for groups; the modal and pointer pulse confirm the winner.

Privacy

Inputs and results are stored in local browser storage only. No upload, no tracking.

Limitations

• Probability is uniform by item count; not weighted.
• Uses Math.random(); for cryptographic needs, use a dedicated RNG.
• Very long lists reduce label legibility; abbreviate or switch to list-style pickers if needed.