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Coin Flip

Coin Flip is part of Toolspire and is ready as soon as this page loads. Toss a virtual coin for a fair heads-or-tails decision — or a cricket toss, a yes/no answer or your own two choices — with a realistic 3D flip, best-of series and running statistics.

Runs in this tabFreeNo account

On this page

What you can do here

Truly random

Not a pattern or a timer — each result uses the same randomness that protects passwords and encryption.

Settle it fairly

Best-of series for bigger decisions, so one lucky toss doesn’t decide everything.

Your own choices

Put names, foods or photos on the two sides and let the coin choose.

See probability at work

Run 1,000 flips in a click and watch the split settle near 50%.

Feels real

A spinning 3D coin, a clink when it lands and a buzz on phones.

Works anywhere

Phones, tablets and computers — press Space to flip on a keyboard.

The sequence

How to flip a coin online

  1. 1

    Choose the sides

    Keep Heads/Tails, pick Yes/No or Bat/Bowl, or type your own two options.

  2. 2

    Flip

    Press Flip the coin (or Space). The coin spins and lands on a random side.

  3. 3

    Read the result

    The result appears under the coin and is added to your statistics.

Worth knowing

  • Coin Flip on Toolspire: every toss is a fair 50/50 result from your browser’s cryptographic random number generator.
  • A realistic 3D coin in gold, silver or rupee style — with Heads/Tails, Yes/No, Bat/Bowl for a cricket toss, or your own two words or pictures.
  • Flip up to 10 coins at once, or play a best of 3, 5 or 7 series.
  • Statistics: heads and tails counts and percentages, the current and longest streak, and quick runs of 10, 100 or 1,000 flips.
  • Streaks are more common than people expect: in 100 flips there is a 54.6% chance of six or more heads in a row somewhere.

Chances of streaks

EventChance
Heads on one flip1 in 2 (50%)
Heads three times in a row1 in 8 (12.5%)
Heads five times in a row1 in 32 (3.1%)
Heads ten times in a row1 in 1,024 (0.1%)
Three heads in a row somewhere in 10 flips50.8%
Six heads in a row somewhere in 100 flips54.6%

Is the next flip “due”?

No. A fair coin has no memory: after five heads in a row, the next flip is still exactly 50/50. Believing otherwise is called the gambler’s fallacy. What does happen is that over thousands of flips the *percentage* of heads drifts towards 50% — try the 1,000-flip button to see it.

FAQ

Questions about Coin Flip

Where does Coin Flip run?

Coin Flip runs in this tab on Toolspire. What you type or drop in is not sent to us and is not stored on a server.

Is this coin flip really random?

Yes. Each result comes from your browser’s cryptographic random number generator (crypto.getRandomValues), so heads and tails are equally likely and no flip depends on the one before.

Can I use it for a cricket toss?

Yes. Choose Bat / Bowl and let the coin decide — or keep Heads/Tails and have the captains call it.

Is a real coin toss 50/50?

Almost. A 2023 study by Bartoš and colleagues, with 350,757 real flips, found coins land on the side they started on slightly more often — about 50.8% of the time. This virtual coin has no starting side, so it is exactly 50/50.

Can I flip more than one coin?

Yes, up to 10 at once — the result shows how many landed heads and tails. For quick experiments, add 10, 100 or 1,000 flips to the statistics.

What does best of 3 mean?

The first side to win two flips wins (three for best of 5, four for best of 7). It makes a decision feel fairer than a single toss.

Keep going

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