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Coin Flip

Flip a coin to get heads or tails at random. Flip multiple coins at once and see cumulative counts and percentages, with cryptographic random for fair results.

Last updated: 2026/10/16 Random Feedback & bug reports

Flip a coin to see the result

Cumulative Stats
0 Total Flips
0 Heads
0 Tails
Space / Enter Flip

How to Use

1

Choose the Count

Pick how many coins to flip at once. Flip a single coin or several coins together.

2

Flip the Coin

Click "Flip Coin" or press Space. Heads or tails is decided by cryptographic random (crypto.getRandomValues) for true fairness.

3

Check the Results

See each coin and the breakdown of this flip. Cumulative heads/tails counts and percentages are tracked automatically.

About the Coin Flip Tool

A browser-based coin flip tool that decides heads or tails at random. Flip a single coin or up to 100 coins at once, with cumulative heads/tails counts and percentages tracked automatically. Results are generated with cryptographic random numbers, so heads and tails each have an exactly equal, unbiased chance. Your data is never sent to any server and all processing happens locally in your browser. It is ideal for yes/no decisions, choosing who goes first, and probability experiments.

Features

  • Cryptographically FairUses crypto.getRandomValues so heads and tails each come up with equal probability.
  • Flip Many at OnceFlip from 1 to 100 coins at a time and review all results together.
  • Cumulative Counts & RatesHeads and tails counts and percentages are tracked automatically for experiments.
  • Privacy ProtectedAll processing happens in your browser. Data is never sent to servers.

Use Cases

  • Quickly settle a yes/no or either/or decision
  • Decide who goes first in games and sports
  • A fair draw for turns or chores
  • Experiment with probability (1/2) and learn statistics
  • A replacement when you have no physical coin

FAQ

Is the coin flip tool free to use?
Yes, it is completely free. No registration required, and it works the moment you open it in your browser.
Are heads and tails truly fair?
Yes. We use the browser's cryptographic random API (crypto.getRandomValues), so heads and tails each have an exactly equal 50% probability.
How many coins can I flip at once?
You can flip up to 100 coins at once and see the total number of heads and tails for that flip together.
How do the cumulative stats work?
Every flip updates the cumulative heads/tails counts and percentages. As you flip more, you can watch the percentages converge toward 50%, which is great for learning probability. Use "Reset Stats" to clear them anytime.
Is my data saved? Is it safe?
No, your flip results and stats are never sent to or stored on our servers. Everything happens locally in your browser and the data is cleared when you leave the page, so it is a safe, privacy-friendly tool.

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