About SpinProof

SpinProof is a free wheel spinner for classrooms, giveaways, teams and everyday choices, built around one idea: a random result should be something people can check, not something they have to trust.

Every spin is locked on our server before the wheel moves and gets its own proof page. Anyone can open that page and repeat the calculation in their browser. See how it works.

Free, with no account

All features are free and you never need to sign up. The site is paid for by advertising, placed so it never gets in the way of spinning.

Built to be fast

The wheel runs in your browser and the pages are kept small, so SpinProof loads quickly on older phones and slow connections too.

Get in touch

Ideas, questions or a problem with a proof? Contact us.