Protégé (open-source ontology editor)

A free, open-source ontology editor and framework for building intelligent systems Protégé is supported by a strong community of academic, government, and corporate users, who use Protégé to build knowledge-based solutions in areas as diverse as biomedicine, e-commerce, and organizational modeling.
Tool type
web application
graphical (Windows)
graphical (Mac OS X)
graphical (Linux)
graphical (cross-platform)

Links and documentation


Internal MSC ID