Isolator is a small, simple application designed to enhance your productivity by reducing visual distractions. Isolator can blur, cover up, or hide all other application windows and the dock, with a quick keystroke or by clicking on Isolator's icon in the menu bar.
You can set blur intensity, background color, opacity, and fade speed, and you can choose from several options for how Isolator is activated and whether it opens on start-up. The developer behind Isolator has done an excellent job of adding functionality in successive updates (like the blur effect and support for multiple monitors) while making sure that this free application still feels smooth and streamlined. Anyone who wants help staying focused should definitely check out Isolator.