Inqlude provides a comprehensive listing of all existing libraries for developers of applications using the Qt toolkit. Inqlude is run by the community and open for contributions.
CuteReport is a report solution. It is based on Qt framework and can be integrated into any Qt application. It has a template designer with form designer, page editor, dataset editor, and other modules. The functionality of CuteReport designer and the CuteReport library can be extended by writing custom plugins.