How to use
- Type your entries, one per line, or separate them with commas: names, prizes, places to eat.
- Press Spin. The wheel slows down and stops, and the slice under the pointer wins.
- To pick several winners with no repeats, tick Remove the winner. Press Put all entries back to start again.
- Press Share result to send the same wheel to friends or students.
How the pick works
Many spinners simulate physics and see where the wheel happens to stop, so the result depends on animation settings. This one works the other way round:
- When you press Spin, a cryptographically secure random number picks one entry out of N.
- The wheel then works out how far to turn so the pointer lands inside that slice.
So each slice has a chance of exactly 1 in N. It also avoids “modulo bias”: when the random range doesn’t divide evenly by N, the leftover values are thrown away and drawn again, so the first slices don’t get a tiny edge.
Examples
- What’s for dinner: the six default entries each have a 1 in 6 chance, about 16.7%.
- Weighted odds: add “Pizza” a second time to make 7 slices. Pizza now has a 2 in 7 chance, about 28.6%, and every other entry 1 in 7.
- A raffle with 3 prizes: enter 10 names, tick “Remove the winner” and spin three times. The first pick is from 10 names, the second from 9, the third from 8, and the list shows the winners in order.
Ideas
- Pick a student to answer, or the order for presentations.
- Run a giveaway or office raffle.
- Settle what to eat, which movie to watch, or who does the dishes.