Protégé

What it is Protégé is a free, open-source OWL ontology editor for building and managing ontologies. It is available as a local desktop application and as WebProtégé for collaborative browser-based editing.

Key concepts OWL 2; ontology modelling; reasoning and querying; collaboration; Java plug-in architecture; desktop and web editing.

How you’d use it Use Protégé Desktop for local ontology development or WebProtégé when multiple people need browser-based collaboration, carrying a model from initial authoring through reasoning and querying.

LLM angle none stated

Pitfalls & lessons none stated

Verdict A mature, extensible editor covering the full OWL 2 ontology-development lifecycle, with a clear choice between local and collaborative workflows.

Sources consulted

• https://protege.stanford.edu/