Simple Normal Mapper is a normal map editor with which one can easily create normal maps for 2D images. Normal mapping is used, for example, in 2D games to make an illusion of a 3D object.
Simple Normal Mapper is fully automatic with some user-controllable parameters.
Simple Normal Mapper is written in Qt and C++.
The newest source code and releases here: https://github.com/juzzlin/SimpleNormalMapper/releases