Apple has donated the source code for MacPaint to the Computer History Museum. MacPaint was part of the original Macintosh launch back in 1984 and was featured prominently in its advertising. It was featured in an advertising brochure that was circulated with Time and Newsweek in December, 1983. The ad introduced the concept of using a mouse to click on the screen, and MacPaint was featured as an example application utilize the windows/mouse interface.

Those who spend a lot of time using Adobe Photoshop constantly use such features as the lasso tool for selecting non-rectangular shapes, and the paint bucket for filling closed areas with a pattern, and later, color. Both first appeared in MacPaint. The program was unique at the time for its ability to create graphics that could then be used in other applications.