Cursor Lock is a utility program that addresses a common oversight in some applications (mostly games) on Multi-Monitor systems whereby they allow the mouse cursor to drift into other unwanted screens. In games, this can also lead to minimizing the game window if the cursor has drifted into another screen and the mouse is clicked accidentally.

Cursor Lock fixes these problems by locking the mouse cursor into the monitor that the selected program is opened on (this is also called capturing or clipping). The cursor is only locked when the selected program has the focus; the cursor can be unlocked by minimizing the selected program, giving focus to another window, or using a user-defined hotkey. When the selected program is closed, Cursor Lock also closes.