Coin Flip
Flip one virtual coin with an animated toss, or run thousands of flips at once. Heads/tails counts, percentages and longest streak update live.
Flips happen in your browser using a cryptographically secure random source.
How to use this coin flip
- Choose Single flip for one animated toss, or Bulk flip for many at once.
- Click Flip — the result appears instantly with a heads/tails breakdown.
- Run more flips to update counts, percentages and the longest streak.
- Copy the full sequence or reset the history at any time.
Frequently asked questions
Is the coin really 50/50?
Yes. Each flip pulls a fresh bit from your browser's cryptographically secure random source — exactly 50% heads, 50% tails.
How many bulk flips can I run?
Up to 10,000 flips per run.
What is 'longest streak'?
The longest run of consecutive heads (or tails) in your current session — useful for probability lessons.
After 10 heads in a row, is the next flip more likely to be tails?
No. The classic gambler's fallacy. Each flip is independent — the coin has no memory of past results. The next flip is still 50/50. Long streaks are surprising but mathematically routine: a fair coin produces a 10-streak roughly every 1,024 flips.