Coin flip
Heads or tails? Let the coin decide.
Tap the coin. It flips with a fair 50/50 chance drawn from your browser's secure random generator, keeps a tally, and tracks your longest streak.
Space bar flips too. Each toss is independent: the coin has no memory of the last one.
No flips yet.
Last flips
Free tool from Pocket Puzzle Arcade
Is an online coin flip fair?
This one is. Each toss asks your browser's cryptographic random number generator for a single bit: 0 is heads, 1 is tails. That source is designed to be unpredictable, and the animation only plays the result back; it does not decide it.
A real coin is very slightly less fair. A large 2023 study in which people recorded more than 350,000 tosses found a coin landed on the same side it started on about 51 times in 100, as the physicist Persi Diaconis had predicted. If it matters, do not let the other person see which side is up before the toss.
Streaks are normal
Five heads in a row feels suspicious and is not. In 100 fair flips, a run of at least five identical results turns up far more often than not, and a run of six or seven is common. Press "Flip 100" a few times and watch the longest-streak number.
The gambler's fallacy
After five heads, tails is not "due". The chance on the next flip is still one in two, because the coin does not know what came before. Over many flips the share of heads drifts toward 50%, but that happens by dilution, not by the coin making up for it.
Deciding with a coin
- Agree the terms first. Say out loud what heads means before anyone flips.
- Best of three does not make it fairer, only longer. One flip is already 50/50.
- Notice your reaction. If the coin says heads and you feel a pang, you wanted tails. That is often the real answer.
Questions people ask
Is flipping a coin online really random?
This page uses the browser's cryptographic random number generator, which gives each side an equal chance on every flip. The animation shows the result; it does not influence it.
What are the odds of five heads in a row?
One in 32, or about 3%, for any given five flips. Across a long series of flips, though, a streak that long is likely to appear somewhere.
Is a real coin flip exactly 50/50?
Very nearly. A 2023 study of over 350,000 tosses found a coin lands on the side it started on about 51% of the time, so hiding the starting side keeps it fair.
Like watching the numbers go up? Build the empire.
Cash Empire Clicker is an iPhone and iPad idle game that starts with tapping a money printer and grows into upgrades, managers, research and prestige.
Get Cash Empire Clicker on the App StoreFree to play with optional in-app purchases, including one-time premium options and packs. Check the App Store for current details.
Honest Little Apps publishes both Cash Empire Clicker and this page. This is a separate browser tool and does not sync with the app. App details checked November 10, 2026.
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