🪙 CoinFlip
Flip a coin — instantly, fairly & free
Flip History
Frequently Asked Questions
Is this coin flip truly random?
Yes. Each flip uses the browser's built-in cryptographic random number generator (crypto.getRandomValues), which provides true randomness — far more unpredictable than a physical coin toss.
Is it fair — 50/50 odds?
Exactly 50/50. Unlike a physical coin, which can have slight weight biases, our virtual coin has perfectly equal probability for heads and tails. The more you flip, the closer the results converge to 50%.
Can I flip multiple coins at once?
Yes! Use the multi-flip selector to flip 1, 5, 10, or 100 coins simultaneously. Each coin is flipped independently with its own random result.
Is any data collected?
No. Everything runs 100% in your browser. No flip data, stats, or personal information is ever sent to any server. Your flip history is stored only in your browser's memory and disappears when you close the tab.
What can I use a coin flip for?
Coin flips are perfect for making quick decisions, settling disputes, choosing between two options, randomizing game turns, statistical experiments, probability demonstrations, or just having fun.
Why do I sometimes get streaks?
Streaks are a natural and expected part of randomness! In fact, the absence of streaks would indicate non-random behavior. In 100 fair coin flips, you'd typically expect a longest streak of about 6-7 in a row — that's perfectly normal.
Does previous flip history affect the next flip?
No. Each flip is completely independent. This is a common misconception called the "gambler's fallacy." Getting 5 heads in a row does not make tails more likely on the next flip — it's always exactly 50/50.
Can I use this on mobile?
Absolutely! CoinFlip is fully responsive and works on any device — phone, tablet, or desktop. You can even add it to your home screen for quick access.