Coin Flip
Flip a virtual coin for a fair Heads or Tails — flip several at once and keep a running tally.
About the Coin Flip
The Coin Flip gives you a fair Heads or Tails the instant you need one — no coin in your pocket required. Tap the big Flip button and a clear, large result appears so there is never any doubt about which way it landed. It's the fastest way to settle a friendly bet, pick who goes first, break a tie, or make any two-way decision when you'd rather leave it to chance than argue it out.
When one flip isn't enough, you can flip several coins at once — anywhere from 1 to 20 in a single tap. Each coin's result is shown individually, along with a quick Heads-versus-Tails tally for that batch, which is handy for probability demonstrations, classroom experiments, or games that call for multiple tosses. A running session total tracks how many Heads and Tails you've hit across every flip so far, and a Reset button clears it whenever you want to start counting again from zero.
Every flip is produced by your browser's built-in cryptographic random number generator (crypto.getRandomValues), combined with rejection sampling so Heads and Tails are exactly equally likely — a true 50/50 with no lean toward either side. That makes the outcome genuinely unpredictable, unlike a spun or weighted physical coin that can subtly favor one face, and far stronger than the simple Math.random() many web toys rely on. Nothing is transmitted or stored; the coin lives entirely on your screen.
How to use
- Set how many coins to flip using the − and + buttons. Leave it at 1 for a classic single toss, or raise it up to 20 to flip a whole handful at once.
- Click Flip to toss. For a single coin the big result reads Heads or Tails; for several coins you'll see the Heads/Tails tally plus each individual result marked H or T.
- Watch the Session totals update automatically — the running count of Heads and Tails across every flip you've made this visit.
- Flip again as many times as you like. The totals keep adding up so you can see how the results balance out over many tosses.
- Press Reset any time to zero out the session totals and start a fresh count.
Frequently asked questions
Is the coin flip actually random and fair?
Yes. Each result comes from crypto.getRandomValues, your browser's cryptographically secure random generator, paired with rejection sampling so Heads and Tails are equally likely. That produces a genuine 50/50 outcome — not the weaker Math.random() used by many simple coin apps, and not subject to the wobble or weighting that can skew a real physical coin.
Can I flip more than one coin at a time?
Yes. Use the + button to choose any number from 1 to 20, then press Flip. Every coin is shown individually as H or T, and the tool tallies how many landed Heads and how many landed Tails in that batch, so you don't have to count them by hand.
What do the session totals mean?
They're a running count of every Heads and every Tails you've flipped since the page loaded, added up across all your flips — including batches of multiple coins. It's a simple way to watch the results even out toward 50/50 over many tosses. Press Reset to clear the totals and start counting again from zero.
Does the count reset when I refresh the page?
Yes. The session totals live only in the page's memory, so refreshing or closing the tab clears them automatically. There's no account, no history file, and no sync — the tool is meant to be quick and self-contained. Use Reset if you want to clear the count without reloading.
Is my flip sent to a server or saved anywhere?
No. All flipping happens in your browser with JavaScript. Results are never uploaded, logged, or stored — the current result and the session totals exist only in the page's memory and disappear when you refresh or close the tab. There's nothing to opt out of because nothing leaves your device.
Why use a virtual coin instead of a real one?
It's always in reach — no coin to dig out of a pocket, and no fumbling on a table or floor. It gives a provably fair 50/50 every time, flips up to 20 coins instantly with an automatic tally, and keeps a running score so you can track results over many tosses. It's ideal for quick decisions, games, and classroom probability demos on any device.