InstantPhotoColor is a very basic FREEWARE photo coloring(photo colorizing) tool. Basically, it helps you converting a black and white or grayscale photo into color one. It can also help in changing some parts of the color photo, for example changing the eyes color.
The workflow is simple. There basically is only one tool – a coloring brush. When you paint with this brush, the image underneath is colorized with the specified tint. The lightness of the image is preserved, so shapes and textures on the picture are kept.
The program can be downloaded and used absolutely free on MS Windows or Mac OSX.