There are a few bugs but it gets the job done.Īnother possible solution: Monosnap is a free screen capture app that displays full-screen crosshairs when capturing an area. You can trigger it via a hotkey and then hit ESC to cancel without actually taking a screenshot if all you want to do is use the crosshairs for alignment.Īs others have mentioned, xScope is another option, although it's costly if all you need is crosshairs.