Input Lab

Coin Flip

Heads or tails, with one click. Assign an option to each side before you flip.

Every flip has an equal chance of heads or tails.

Your result

Your result will appear here.

Flip history

No flips yet. Your last 100 flips will appear here.

    How to flip a coin online

    Decide what heads and tails stand for, then press Flip coin. The outcome appears immediately. Use another flip for a new independent choice, or open the history to compare recent outcomes and copy your record.

    Understanding a 50/50 chance

    Heads and tails each have a one-half chance on every flip. A short series does not have to split evenly, and a streak does not make the other side more likely next time. Use a coin for two options or the number generator for a longer list.

    Frequently asked questions

    Is the result random?

    Yes. Each flip uses the browser’s cryptographic random source to choose between two equally likely outcomes.

    How many flips are kept?

    The history shows the last 100 flips, newest first. Counts refer only to those displayed results.

    Can I save the history?

    Copy the history before reloading or closing the page. It is not saved between visits, and Clear history removes it from this tab.

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