コインフリップとは?
無料のオンライン コインフリップツール。ランダムにコイン投げをシミュレートし、表か裏の結果を表示。
Sometimes the best way to make a decision is to let chance decide. The Coin Flip tool is a simple random decision maker with three modes: a classic heads-or-tails coin flip, a yes-or-no answer generator, and a custom two-option decision maker. The animated flip provides a satisfying visual experience with a transparent random result.
In Coin Flip mode, click the coin to flip it between heads and tails. The animated rotation includes a slight 3D perspective effect with the coin face changing mid-flip. The result is determined by JavaScript Math.random() with equal probability for both outcomes.
Yes/No mode replaces the coin faces with large YES and NO labels. Ask a question in your mind, click to flip, and see the answer. This is useful for quick binary decisions, brainstorming exercises, or fun group activities. Custom mode lets you enter any two options for any decision.
The history panel logs the last 20 flips with a timestamp and result for each. The statistics display shows the running tally by count and percentage, so you can see if the results are balanced over time.