Is the coin flip truly random?

Yes. Results are generated with window.crypto.getRandomValues(), which produces cryptographically secure random bytes, making each flip completely unbiased.

How many flips can I do at once?

You can flip between 1 and 1000 times in a single click. Entering 1 activates the animated single-flip view; entering 2 or more activates the aggregate stats view.

What does "longest streak" mean?

The longest streak is the maximum number of consecutive identical outcomes (all heads or all tails) in your flip sequence.

Does this work offline?

Yes. The tool is 100% client-side JavaScript with no external requests, so it works in any modern browser including offline.

Is a real coin toss exactly 50/50?

Very close, but not quite. In a 2023 study of 350,757 hand-tossed coins, Bartoš and colleagues found coins landed on the side they started on about 50.8% of the time. This flipper has no starting side, so each result is an even 50/50.

After 5 tails in a row, is heads more likely?

No. Each flip is independent, so the next one is still 50% heads. Believing a result is "due" is known as the gambler's fallacy. Long runs are normal: in 100 flips, the chance of a run of 5 or more of the same side is about 97%, and of 7 or more about 54%.

Coin Flipper

Enter how many flips you want (1–1000), hit Flip, and see the animated result or full aggregate stats.

Click Flip for one heads-or-tails toss.

Flip Settings

Number of Flips (1 – 1000)

Single Flip Multi Flip

Enter 1 for an animated flip. Enter 2–1000 for aggregate stats.

Set the number of flips and press Flip to get started.

Quick answer

Click Flip for one heads-or-tails toss. Each flip is a fair 50/50 draw from your browser's cryptographic random generator. Enter 2 to 1,000 to flip many coins at once and see the counts and longest streak.

Examples

Outcome	Chance
Heads on one flip	50%
3 heads in a row	12.5%
5 heads in a row	3.125%
10 heads in a row	About 0.1% (1 in 1,024)
Exactly 5 heads in 10 flips	24.6%
Exactly 50 heads in 100 flips	8.0%

Flip the coin.

Summary

Enter how many flips you want (1–1000), hit Flip, and see the animated result or full aggregate stats.

How it works

Enter the number of flips you want (1 for a single animated flip, 2–1000 for multi-flip stats).
Click the Flip button.
For a single flip, watch the coin spin and read the HEADS or TAILS result.
For multiple flips, review the heads/tails counts, percentages, longest streak, and the sequence grid.
Click Reset to clear the result and start over.

Use cases

Make a quick heads-or-tails decision without a physical coin.
Run a large batch of coin flips to verify probability in a classroom setting.
Settle disputes or choose starting sides in a game.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu