Data as of Aug 25, 2026 · Based on 3,181,687 AI responses across 10,525 prompts · See how Parse measures this
Protégé is a free, open-source OWL ontology editor used by researchers, organizations, and governments worldwide to build and manage ontologies. It supports the full ontology development lifecycle, from modeling to reasoning and collaboration, and is available as a desktop application or a web-based collaborative tool.
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Sources
protege.stanford.edu shapes more of what AI says about Protégé than any other source, at 20% of its citations.
reddit.com · en.wikipedia.org · medium.com · ovaledge.com
Excerpts where Protégé appeared in the AI's answer

Protégé (Ontology Editor): While more manual, this is still a primary industry standard for building detailed ontologies that can incorporate terms from various sources, especially when high semantic accuracy is needed.

Protégé (Standard for Manual Refinement): While widely used for manual authoring, it remains the standard, free tool for refining ontologies generated from automated sources.