Coin Flipper
Each coin uses Math.random() < 0.5 for heads, otherwise tails. The percentage is heads divided by all recorded outcomes, rounded to an integer.
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Play, method and practical limits
Each coin uses Math.random() < 0.5 for heads, otherwise tails. The percentage is heads divided by all recorded outcomes, rounded to an integer.
Limits and problems
Past results do not predict the next outcome. This animation is not a physical coin or a certified randomness source.
Malformed saved JSON falls back to usable defaults. A storage error does not discard the completed flip or freeze the button.
Game data
Totals and history use sessionStorage under coinFlipperStats. They are browser-session data, not a public account record.
About Coin Flipper
Flip a virtual coin for quick decisions. Features realistic coin flip animation and tracks your flip history. Perfect for settling debates or making random choices.
Use Cases
Pro Tips
- Use for quick yes/no decisions
- The flip history shows if you're "lucky"
- Past results do not predict the next outcome. This animation is not a physical coin or a certified randomness source.
- Use keyboard shortcuts for rapid flipping
How to use
Choose 1, 3, 5 or 10 coins, then Flip or Space outside interactive controls.
Watch the realistic flip animation
See the result: Heads or Tails
Check the statistics for your flip history
The 800 ms animation retains that quantity. View totals and recent history; Clear resets the session and cancels a pending flip.
Frequently Asked Questions
Each coin uses Math.random() < 0.5 for heads, otherwise tails. The percentage is heads divided by all recorded outcomes, rounded to an integer. Past results do not predict the next outcome. This animation is not a physical coin or a certified randomness source.
This is normal randomness! Streaks are mathematically expected in random sequences.
Yes, increase the number of coins to flip several at once.
Yes, your recent flips and running statistics are displayed.
Random samples can be uneven. The displayed proportion is an observation, not a fairness guarantee.