GEGL (Generic Graphics Library) is a graph based image processing framework.

This library contains an add-on to FEniCSx enabling the possibilities of enforce multi-point constraints. This can be used to for instance enforce slip conditions strongly, or apply periodic boundaries..

Glade is a RAD tool to enable quick and easy development of user interfaces for the GTK+ toolkit.

Gauche is a Scheme implementation developed to be a handy script interpreter.

DOLFIN is the Python and C++ interface of the FEniCS project for the automated solution of differential equations, providing a consistent PSE (Problem Solving Environment) for solving ordinary and partial differential equations. Key features include a simple, consistent and intuitive object-oriented API; automatic and efficient evaluation of variational forms; automatic and efficient assembly of linear systems; and support for general families of finite elements.

Tryton is a high-level general purpose application platform. It is the base of a complete business solution as well as a comprehensive health and hospital information system (GNUHealth).