Flip 2 Coins Online
Flip one to ten coins. Each face is the low bit of a crypto.getRandomValues byte. The counters start at zero and ignore the face that is already showing.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the coin flipper with 2 coins already on the table. One click tosses both at once, each with its own independent cryptographic random result — no coin ever influences the other.
Two coins give four equally likely outcomes: both heads, both tails, and two mixed combinations. That means a 25% chance of double heads, 25% for double tails, and 50% for one of each — handy for quick two-out-of-three style decisions or probability demos in class.
The counters below the coins keep adding up heads, tails, and your longest run while you keep flipping. Need a different number? The full tool handles 1 to 10 coins, entirely offline in your browser.
Example. Each coin reads one crypto byte and keeps the low bit. Even is heads, odd is tails. The count is clamped to 1–10, and the spin lasts 900 ms.
Limit. The face painted before the first flip is not counted. Reset clears the totals and does not reroll. The streak follows board order, not one coin.