Random Coin Flip
Heads or tails, instantly.
Flip one coin or flip a whole batch at once. See individual results, a heads/tails tally, and the longest streak — useful for quick decisions, probability demos, or settling an argument.
Set. Choose how many times to flip (1 for a single flip).
Click Flip the coin to see a result.
Options
Recent results
- No history yet.
How it works
- Set. Choose how many times to flip (1 for a single flip).
- Flip. Click "Flip the coin" to see the result(s).
- Reflip. Click again anytime for a fresh flip.
Frequently asked questions
Is each flip a true 50/50?
Yes. Each flip uses your browser's crypto.getRandomValues, so heads and tails are equally likely.
Can I flip more than once at a time?
Yes. Set the flip count and it shows every individual result plus a running tally.
Does it track streaks?
Yes. It shows the longest heads or tails streak within your current batch of flips.
Related randomizers
Further reading
- Best of three: when a single coin flip feels too harsh
One flip decides in half a second, but sometimes a binary call feels too abrupt to accept. Here's why flipping an odd batch and taking the majority changes nothing about the odds — and everything about how the loser feels about it.
- Why a long streak in 100 coin flips doesn't mean it's rigged
Flip a batch of 100 coins and you'll almost always see a streak of five or more somewhere in the run. That's not a broken randomizer — it's exactly what real randomness looks like. Here's the math behind streak length, and why 'it's due' is the wrong instinct.
- Two Choices, One Flip: When a Coin Beats a Wheel
Not every random decision needs a spinning wheel or a weighted list. When a call really is binary, a coin flip is the faster, fairer tool — here's how to tell the difference.