CheckWithMouseOver is a free Chrome add-on developed by 紅坂柚月. This handy tool allows users to easily invert the selection of checkboxes and radio buttons by using the Alt key and mouse over function. With CheckWithMouseOver, you no longer need to manually uncheck multiple options or deselect radio buttons one by one.

This add-on is particularly useful when dealing with long lists of options or when you need to quickly change your selection. By simply hovering your mouse over the checkbox or radio button and pressing the Alt key, CheckWithMouseOver instantly toggles the selection. It also supports label tags, making it even more versatile and user-friendly.

CheckWithMouseOver is a valuable tool for anyone who frequently works with checkboxes and radio buttons. Its intuitive functionality and compatibility with label tags make it a convenient and time-saving solution.