The radio button is a graphical user interface element that allows users to make a single selection from a predefined set of options.

Typically presented as small circles accompanied by descriptive labels, users can choose one option at a time within a group of radio buttons.

Unlike checkboxes, radio buttons are exclusive within their group, meaning selecting one option automatically deselects any others in the same group. This makes radio buttons well-suited for scenarios where only one choice from a set of mutually exclusive options is permissible, such as selecting a gender or a preference among distinct categories.