True or False Wheel
Spin for a random true or false result with even fifty-fifty odds. Great for quizzes, review games, and quick class calls.
Fair by design: each spin draws from your browser’s cryptographic random number generator, giving every entry an equal 1-in-2 chance. No server is involved.
One entry per line. 2 entries on the wheel.
The entries travel in the part of the link after the #, which browsers never send to a server. Nobody, including us, can read a shared wheel from a log.
Please keep the attribution link on the last line. It is the only thing we ask in return, and it is what pays for the wheel being free.
True or False Wheel at a glance
| Slices | 2 |
|---|---|
| Chance per slice, per spin | 1 in 2 (50.0%) |
| Chance of a given slice in 10 spins | 99.9% |
| Category | Decision wheels |
| Randomness source | crypto.getRandomValues, tested |
| Last updated |
About the True or False Wheel
This wheel comes pre filled and ready to spin. Give it a whirl as is, or edit the entries in the box to make it your own. Every slice has equal odds, so the result is fair each and every time. When the wheel stops, the pointer at the top marks the winning slice.
Nothing you spin is uploaded anywhere. The True or False Wheel runs entirely in your browser, and you can save your edits to your own device. When you want your visitors to spin the same wheel, copy the embed code under the wheel and drop it onto your page.
The true or false wheel is a quizmaster's little helper. Teachers spin it to decide whether the next statement they read aloud should be true or false, which keeps a review game unpredictable and stops students from spotting a pattern in the questions. Trivia hosts use it the same way for lightning rounds, and party games use it for two truths style challenges where the wheel decides if the next story must be real or invented. It also works as a neutral referee: when a group splits on a claim, spin to decide which side has to argue the opposite position for fun. Both slices carry a clean fifty percent chance, so over a long quiz the mix of answers stays balanced without the host thinking about it. Swap the labels to Fact and Fiction or Real and Fake in the entries box to match your game's flavor.
The odds on this wheel
There are 2 slices, all the same size, so a given slice wins one spin with probability 1 ÷ 2 = 50.0%. Every spin is independent of the one before it, which means no result is ever due: after ten spins without a particular slice, the chance on the eleventh is still 50.0%.
Across several spins the maths follows the complement rule. The chance of a given slice coming up at least oncein ten spins is 1 − (1 − 1/2)10 = 99.9%. Edit the entry list and every figure here recomputes, because they are derived from the wheel rather than written down beside it.
Frequently asked questions
What kinds of decisions suit a True or False wheel?
It is built for yes-or-no style calls where you want an unbiased tiebreaker, like settling a debate or checking a quick quiz answer. With only two slices, it is a straight 50/50 between True and False.
Is this the same as flipping a coin?
In terms of odds it is, since each outcome lands 50 percent of the time. The difference is that you get a clearly labeled True or False result and a bit of spin instead of a toss.
Can I relabel the two slices to "Yes" and "No"?
Definitely, swap the words in the list under the wheel and it becomes a Yes/No or even a "Do it / Skip it" decider. The even 50/50 split stays the same whatever you call the two sides.
Put this wheel on your own site
One line of HTML. No tracking, no cookies, and it works on any page. The embed code sits under the wheel above, and the embed guide has a copy-paste block for WordPress, Google Sites, Notion, Moodle, Canvas and OBS.
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