protege
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Description:
Ontology editor
Type: Cask  |  Latest Version: 5.6.8@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: ontology semantic-web owl knowledge-graph editor
Install: brew install --cask protege
About:
Protégé is a comprehensive, open-source ontology editor and knowledge acquisition framework. It enables users to create, visualize, and manipulate ontologies using standard OWL (Web Ontology Language) formats. The tool is highly extensible via plugins, making it a powerful platform for building intelligent systems and semantic data models.
Key Features:
  • Graphical OWL ontology editor
  • Reasoning support for knowledge consistency
  • Extensible plugin architecture
  • Support for RDF and OWL formats
  • Customizable user interface
Use Cases:
  • Designing and managing semantic web ontologies
  • Building knowledge-based AI and expert systems
  • Structuring complex domain knowledge for data integration
Alternatives:
  • TopBraid Composer – Commercial alternative with similar semantic web capabilities
  • WebVOWL – Web-based visualizer for ontologies, less focused on editing
Version History
Detected Version Rev Change Commit
Aug 23, 2025 12:17pm 5.6.7 0 VERSION_BUMP 01b1b50b
Aug 9, 2025 8:57pm 5.6.7 0 VERSION_BUMP c9bfb0ac
Aug 5, 2025 2:22pm 5.6.6 0 VERSION_BUMP e7170a06