Flip a virtual coin for a perfectly random heads or tails result. Use it to settle disputes, make decisions, or run probability experiments. Track your streak and flip history in real time.
Try:
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Heads
🌟
Tails
Click the coin or press Flip to start
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Heads
0
Tails
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Total
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Streak
Last 50 flips (newest left):
How to use
Click the coin or press the Flip button for a single flip.
Change "Coins" to any number 1–100 to flip multiple coins at once.
Watch the streak counter — it tracks consecutive identical results.
Use Best of 3 to automatically run 3 flips and show the winner.
Press Reset stats to clear counters and history.
Frequently Asked Questions
Is this coin flip truly random?
Yes. Results come from Math.random(), which uses a cryptographically seeded PRNG in modern browsers. Each flip is independent — past results don't affect future ones.
What is the probability of heads or tails?
Each side has an exact 50% probability. Over hundreds of flips the results converge toward 50/50, but short sequences naturally deviate — that's normal probability.
Can I flip multiple coins at once?
Yes. Set the Coins field to any number from 1 to 100. The tool shows a summary of heads vs tails and adds a chip to the history for each coin.
What does the streak counter show?
It shows how many consecutive single flips landed on the same side. When the result changes, the streak resets to 1. Multi-flip results don't update the streak.
Can I use this to make a fair decision?
Absolutely. Assign "Heads" to one option and "Tails" to the other, then flip. The result is unbiased, independent, and just as fair as a physical coin toss.
How do I reset everything?
Click "Reset stats" to clear the history log, set all counters back to zero, and start fresh. The coin animation will also reset to its neutral position.
What is Best of 3?
Best of 3 automatically runs three independent single flips and declares the side that won at least 2 of the 3 as the overall winner — useful for tie-breaking decisions.
Did you know?
A real coin flip is not perfectly 50/50 — research shows it lands the same side up it started about 51% of the time due to precession in the flip motion.
The longest recorded streak of heads in a controlled experiment was 14 consecutive heads, achieved during a Stanford probability study.
The term "heads" comes from ancient Roman coins that featured the emperor's head. "Tails" referred to the opposite, undecorated side.
In cricket, the coin toss before a match has historically influenced the outcome — the team winning the toss wins the match slightly more often in certain conditions.