randomDifficulty: 1/5
Coin Flip
Flip a virtual coin once or hundreds of times. Secure randomness, instant heads/tails result, and a full summary with counts and percentages.
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How it works
- Choose how many times to flip — one, or up to ten thousand.
- Press Flip. The outcome is generated securely before the animation plays.
- For multiple flips you get heads and tails counts with real percentages.
Frequently Asked Questions
Is the coin fair?
Yes. Each flip consumes one bit from the browser crypto API, so heads and tails are exactly equally likely. The animation never influences the outcome.
Can I flip many times at once?
Yes. Enter a count and you get every result plus totals and percentages calculated from the actual flips.
Why are my percentages not exactly 50/50?
Because real randomness clusters. Small runs deviate from 50% — that is expected, and the percentages shown are always the real observed values.