KMag is a small utility for Linux to magnify a part of the screen. KMag is very useful for people with visual disabilities and for those working in the fields of image analysis, web development etc. This application is useful for a variety of people: from researchers to artists to web-designers to people with low vision. Features include:

Follow mouse mode. Follow focus mode. Selection window mode. Whole screen mode. Option to hide mouse cursor. Can stay on top. Zoom in and zoom out.