About SpinChakra

SpinChakra is a free spinner wheel and a small set of random tools. No account, no install, no limits — open a page, type your entries, and spin.

How the wheel picks a winner

The winner is drawn before the animation starts, using your browser's cryptographic random number generator, weighted by slice size. The final rotation is then calculated so the pointer lands on that exact slice. This ordering matters: it means the result can never disagree with what you watched, and it makes the selection testable rather than a matter of trust.

Weights work the way they look. An entry marked *3 gets three times the slice and precisely three times the chance.

Where your data lives

On your device. Saving a wheel writes to this browser's local storage. Sharing a wheel encodes the whole thing into the link itself, which is why share links get longer as wheels grow. There is no database, no sync, and no server that has ever seen your list.

How the site is built

SpinChakra is a static site: hand-written HTML, CSS, and JavaScript modules, with no framework and no build-time dependencies beyond Node itself. Pages are pre-rendered, the wheel draws to a canvas, and the heavier features — the QR encoder, the tool runtimes — are only fetched when you use them.

Questions? Write to hello@spinchakra.com.