Tech riderRev. 30 Sept 2026
  1. 1Runs onLinux, Mac, Web, Windows
  2. 2CostsFree plan
  3. 3Ontology modelingYes
  4. 4Semantic reasoningYes
  5. 5RDF/SPARQL supportYes
  6. 6Graph visualizationYes
  7. 7Import formatsRDF/XML, Turtle, OWL/XML, OBO
  8. 8Deploymentboth
8 lines stated Written from the maker's own pages: protege.stanford.edu
The Protégé homepage

Overview

Protégé is ranked #8 of 33 in knowledge graph software on Specifiction. It runs on Linux, macOS, Web, Windows. There is a free plan.

Protégé plans and pricing

All plans
Protégé Desktop and WebProtégé Free Free and open source · OWL 2 support protege.stanford.edu · 30 Sept 2026

Compared on knowledge graph software

Free plan
Yesprotege.stanford.edu
Ontology modeling
Yesprotege.stanford.edu
Semantic reasoning
Yesprotege.stanford.edu
RDF/SPARQL support
Yesprotege.stanford.edu
Graph visualization
Yesprotege.stanford.edu
Import formats
RDF/XML, Turtle, OWL/XML, OBOprotege.stanford.edu
Deployment
bothprotege.stanford.edu
Query languages
SPARQLprotege.stanford.edu

Facts

Purpose
Protégé is an ontology editor used to build and manage ontologies.protege.stanford.edu · 30 Sept 2026
Editions
Protégé is available as the desktop application Protégé Desktop and the browser based editor WebProtégé.protege.stanford.edu · 30 Sept 2026
OWL support
Both editions support the OWL 2 Web Ontology Language.protege.stanford.edu · 30 Sept 2026
Collaboration
WebProtégé supports collaborative viewing and editing of OWL 2 ontologies, with sharing, permissions, threaded discussions, watches, email notifications, and revision history.protege.stanford.edu · 30 Sept 2026
File formats
WebProtégé ontologies can be uploaded and downloaded in RDF/XML, Turtle, OWL/XML, OBO, and other formats.protege.stanford.edu · 30 Sept 2026
Desktop reasoning
Protégé Desktop connects directly to description logic reasoners including HermiT and Pellet.protege.stanford.edu · 30 Sept 2026
Desktop tools
Protégé Desktop supports multiple ontologies in one workspace, ontology structure visualization, inference explanations, and refactoring operations.protege.stanford.edu · 30 Sept 2026
Extensibility
Protégé Desktop is written in Java and uses a plug-in architecture for extensions.protege.stanford.edu · 30 Sept 2026
Cross compatibility
WebProtégé and Protégé Desktop are described as cross compatible with each other.protege.stanford.edu · 30 Sept 2026
Users
The project says it is used by researchers, organisations, and governments worldwide.protege.stanford.edu · 30 Sept 2026
Support
Free support is offered through mailing lists monitored by team members and experienced community users, and users must subscribe before posting.protege.stanford.edu · 30 Sept 2026
Documentation
Protégé documentation includes FAQs, tutorials, user guides, and developer documentation.protege.stanford.edu · 30 Sept 2026
Maintainer
Protégé Desktop is community maintained, with Damien Goutte-Gattat identified as its current primary maintainer.protege.stanford.edu · 30 Sept 2026
Origin
Protégé was developed by the Stanford Division of Computational Medicine at Stanford University School of Medicine.protege.stanford.edu · 30 Sept 2026

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