Checkbox

A checkbox (check box, tickbox, tick box) is a <a href="/facts/Graphical_widget/SuVeScB2">graphical widget</a> that allows the <a href="/facts/User_(computing)/zQRzG0KG">user</a> to make a binary choice, i.e. a choice between one of two possible mutually exclusive options. For example, the user may have to answer 'yes' (checked) or 'no' (not checked) on a simple <a href="/facts/Yes%E2%80%93no_question/v6UgKvHN">yes/no question</a>.
Checkboxes are shown as empty boxes when unchecked, and with a <a href="/facts/Check_mark/xbHYPekL">tick</a> or <a href="/facts/Cross/a3W7gkFH">cross</a> inside (depending on the graphical user interface) when checked. A caption describing the meaning of the checkbox is normally shown adjacent to the checkbox. Inverting the state of a checkbox is done by clicking the mouse on the box, or the caption, or by using a <a href="/facts/Keyboard_shortcut/mjeb82kI">keyboard shortcut</a>, such as the <a href="/facts/Space_bar/tjj7t61S">space bar</a>.
Often, a series of checkboxes is presented, each with a binary choice between two options. The user may then select several of the choices. This is contrasted with the <a href="/facts/Radio_button/nmTS7VHF">radio button</a>, in which only a single option is selectable from several mutually-exclusive choices.
Checkboxes may be disabled (indicated "<a href="/facts/Greyed_out/SuVeScB2">greyed out</a>") to inform the user of their existence and possible use despite momentary unavailability.

Checkbox open-in-new

Checkbox