Eddy is a graphical editor for the specification and visualization of Graphol ontologies. Eddy features a design environment specifically thought out for generating Graphol ontologies through ad-hoc functionalities. Drawing features allow designers to comfortably edit ontologies in a central viewport area, while two lateral docking areas contains specifically-tailored widgets for editing, navigating and inspecting open diagrams. Eddy is equipped with design-time syntax validation functionalities which prevents ontology designers from constructing invalid Graphol expressions: feedback on the validity of the expression is given through color coding diagram elements.

NOTE: This is only to provide appimages, I am not the developer.