Coin Flip
Flip a virtual coin and get heads or tails with an animated toss and running statistics. Free, fair and private — every flip is decided in your browser using cryptographic randomness.
How to use the coin flip
- Press flip. Click Flip coin and watch the coin spin before it lands on heads or tails.
- Flip several at once. Set Coins per flip to toss a batch — handy for probability experiments or making several yes/no decisions in one go.
- Track the odds. The counter records total flips, heads, tails and the running heads percentage. Copy the stats or reset the counter anytime.
About this tool
This free online coin flipper is the fastest way to settle a decision when you do not have a real coin handy — who goes first, which option to pick, or a simple yes-or-no call. Flipping many coins at once also makes it a neat classroom demonstration: toss 1,000 coins and watch the heads percentage settle close to 50% as the number of flips grows, illustrating the law of large numbers in real time.
Each flip is decided with your device's cryptographically secure random number generator, so heads and tails are exactly equally likely and no outcome can be predicted. Everything happens locally in your browser — nothing is sent to a server, no flips are logged, and the running tally clears the moment you reset it or reload the page.
Frequently asked questions
Is the coin flip really 50/50?
Yes. Each flip reads a random bit from the browser's cryptographically secure generator, giving heads and tails an exactly equal 50% chance. Unlike a real coin, there is no physical bias from weight or how it is tossed.
Can I flip more than one coin at a time?
Yes. Set Coins per flip to any number up to 10,000. Each coin is flipped independently and the heads and tails totals update together, which is perfect for probability lessons and quick multi-way decisions.
Why isn't my heads percentage exactly 50%?
Randomness is streaky over short runs, so a handful of flips can easily land 70% heads. The more you flip, the closer the percentage drifts toward 50% — a phenomenon known as the law of large numbers.
Are my flips saved anywhere?
No. The running counter lives only in this browser tab and everything is computed locally. Nothing is uploaded or stored, and pressing reset or reloading the page clears the tally completely.