OmniGraffle vs Protégé
A side-by-side look at OmniGraffle and Protégé. For an in-depth review of either product, follow the links below.
OmniGraffle
OmniGraffle is a diagramming and graphic design application for macOS and iOS. It allows users to create everything from simple diagrams to complex illustrations and prototypes. OmniGraffle enables intuitive diagramming with customizable canvases, templates, stencils, and tools for drawing, connecting objects, and styling diagrams.
Protégé
Protégé is an open-source ontology editor and knowledge-base framework. It provides tools to construct domain models and knowledge-based applications with ontologies. Protégé implements a rich set of knowledge-modeling structures and actions that support the creation, visualization, and manipulation of ontologies in various representation formats.