Classroom
Whose turn is it?
A class list, a big wheel, and a clear name at the front of the room.
Your list
10 entries*3 for extra chancesPut a star and a number after a name to give it more chances — Alex *3 is three entries on one line.
CSV, XLSX or TXT · up to 10.0 MB
Draw setup
Wheel colours
Muted
Custom colours8
Type a hex code or use the well. The wheel repaints as you type, and the colours repeat around it — you never have to pick one per name.
How does Spinnza choose? How Spinnza chooses ›
The winner is picked before the wheel moves, using your browser’s cryptographic random number generator (crypto.getRandomValues) rather than Math.random(). The range is reduced by rejection sampling, so no entry is even slightly more likely than another because of where it sits in the list.
Weights are applied before the draw: an entry with three chances occupies three of the total, and duplicate rows each count separately. The complete list is always used, even when the wheel is too crowded to show every name on a slice.
The animation is presentation. Once a winner is chosen, the wheel is told where to stop — it never decides anything.
10 entries
Showing an example list. Replace it with your own names.
Made for a projector
Fullscreen mode shows the title, the wheel, the number of students and the picked name — and nothing else. No editing controls, no navigation, no ads.
Classroom mode starts quiet: sound off, a muted palette, no celebration, and “remove winner after spin” already on so the same student does not come up twice in a row. All of that is adjustable.
Keeping your class lists
Save a wheel per class and load it next lesson. Lists are stored in your browser, not on a server — which also means they do not follow you to the classroom computer next door.
The names never leave your device. Nothing is uploaded, so there is no account to make on behalf of a class and no student data sitting on someone else's server.
Cold calling without the dread
The argument for a wheel in a classroom is not novelty, it is that it takes the choice away from you in a way the room can see. Nobody is being picked on when a wheel does it, and the student who never volunteers gets asked as often as the one who always does.
Two settings change the feel of it. “Remove winner after spin” means everybody gets a turn before anybody gets a second, which is what you want for a round of questions. Leave it on and the wheel empties as the lesson goes; press Start over to put everybody back without touching the saved list.
The quiet defaults exist for the same reason: sound off, muted colours and no confetti, because a class of thirty does not need a fanfare every ninety seconds. Turn them on for the last lesson before a holiday.
Groups, jobs and turns
The same class list does more than one job. Use the team generator to split them for group work — it deals names out one at a time, so the split is as even as the numbers allow and the first four names on your register do not become a table.
For jobs and rotations, weights are useful in a way they are not elsewhere: put a star and a number after a name to give somebody more chances, or keep it flat so the draw is plainly equal. A wheel where the odds are visible is easier to defend to a fourteen-year-old than a decision you made at your desk.
What happens to the names
Class lists are stored in the browser on the machine you typed them into, and nowhere else. There is no account, no sync and no server copy, which means no student names sitting in somebody else’s database — and it also means the list does not follow you to the laptop in the next room, so save it where you teach.
Clearing your browser data deletes saved wheels permanently. If a list took you a while to type, keep the original somewhere you control.
Questions
- Do I need an account?
- No. The whole free tool works with no account, and class lists are saved in the browser you are using.
- Can I put every student back after picking a few?
- Yes. Start over restores the full list for the session without touching the saved wheel.
- Is student data sent anywhere?
- No. Names stay in the browser on that device. Nothing is uploaded, so there is no copy on a server to ask about.
- Will it work on the classroom computer and the projector?
- Fullscreen mode is built for a projector: title, wheel, count and the picked name, nothing else. Saved lists live on whichever machine you saved them on.
The wheel is free and always will be. A recorded proof spin is $1.99, one time, no subscription — how it works.