A genuinely fair 50/50 draw
Each toss uses one unbiased bit from crypto.getRandomValues. Animation and sound reveal the result; they do not choose it.
Call heads or tails, send a satisfying coin into the air, and get a fair decision, with sound, history, and the numbers behind every toss.
Tap the coin or use the button below.
Private and unbiased: every toss happens with Web Crypto in this browser. Session results and preferences never leave this device.
The result is selected fairly before the coin moves. The rest (the lift, spin, shadow, sound, and landing) is there to make the reveal feel like a real toss.
Choose heads or tails before the toss if you want to test your call, or skip the call when you only need a decision.
Press the main button or Space. A Web Crypto draw decides the result before the 3D coin begins its animation.
See the current streak, session balance, recent tosses, and call accuracy, or simulate a larger sample instantly.
Each toss uses one unbiased bit from crypto.getRandomValues. Animation and sound reveal the result; they do not choose it.
Choose gold, silver, or midnight styling, change the animation pace, and turn the synthesized flip sound on or off.
Track heads, tails, streaks, and call accuracy, then run larger multi-flip samples without losing the satisfying single toss.
The result comes from the browser's cryptographically secure random-number generator. One unbiased binary value maps to heads and the other to tails, so both outcomes have an equal chance on each toss.
No. Every toss is independent. A run of several heads does not make tails more likely on the next flip, even though results tend to balance only across very large samples.
Choose heads or tails before flipping and the result panel will tell you whether your call won. Your call accuracy is tracked separately from the coin's heads and tails totals.
The streak shows how many consecutive tosses have produced the current side. It resets to one whenever the result changes from heads to tails or vice versa.
Yes. The quick simulation can toss 10, 100, or 1,000 coins instantly and report the totals and percentage split. These simulated tosses do not alter your animated session history.
Results and preferences are stored only in this browser. Nothing is uploaded, and resetting the session removes the saved toss history.
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