🎡 Wheel Spinner ☆

Overview

Wheel Spinner turns any list into a colorful spinning wheel. Type your names, prizes or options, one per line, and press spin: the wheel rotates with a smooth animation and stops on a winner chosen with crypto.getRandomValues, the same secure randomness used for cryptography in your browser. Enable "remove winner" and each result is crossed off automatically, ideal for multi-round giveaways and classroom activities. Recent results are saved in a short history so nobody misses the outcome. Everything runs locally: entries and results never leave your device, and the tool keeps working offline after the first load.

How the random winner is chosen

Before the wheel animates, the winning index is drawn from crypto.getRandomValues, the browser's cryptographically secure random source, so results are uniform and unpredictable. The animation then spins to that segment, which means the visible motion is a presentation of an already-random outcome rather than a physics simulation that could be biased by timing or click position. Removed winners are excluded from subsequent draws, keeping multi-round giveaways fair by construction.

How it works and what it supports

Property	Wheel spinner behavior
Input	One entry per line, any number of entries
Randomness	crypto.getRandomValues, uniform distribution
Options	Remove winner after spin, sound and animation settings
History	Recent results kept for the session
Visual	Colored segments scaled to entry count
Processing	100% client-side; entries never uploaded
Cost	Free, no account, no ads

Privacy: entries stay on the device

Participant names, prize lists and classroom rosters are personal data. Everything stays in the browser: nothing is transmitted, stored on a server or logged, and the page works offline.

Running a fair draw

• Shuffle the entry list before the first spin for good measure.
• Enable remove-winner for multi-prize giveaways.
• Spin once without recording if you want to demonstrate randomness first.
• Keep the history visible for the audience to follow.
• For formal draws, screen-record the session for evidence.

Related: browse the more tools for timers, tests and everyday utilities.

Fair randomness in a spinning wheel

A picker is only useful if every option has a genuinely equal chance. This wheel assigns each entry an angle proportional to its share of the list and selects the winner with the browser's cryptographic random generator rather than a predictable pseudo-random sequence, so the result does not depend on timing, animation frames or how fast you click. Two details matter in practice. First, every slice must be the same size: if you add an option twice, it wins twice as often, which is sometimes exactly what you want for weighted decisions, but it should be deliberate rather than accidental. Second, removing a winner after each spin turns the tool into a fair draw without replacement, which is what classrooms, stand-ups and giveaways usually need. Common uses include picking who presents first, choosing a restaurant, assigning chores, running a random quiz order or settling a friendly tie. For accessibility, the result is announced as text and stored in the page, so nobody has to see the animation to know the outcome. Everything runs locally: your list of names or options never leaves the browser, which matters when the entries are customer names, student lists or anything else you would rather not upload.