Protégé is a free, open-source platform for editing ontologies and building knowledge-based intelligent systems, supported by a vibrant global community.
Edit and manage ontologies with ease
Protégé is a free, open-source tool that lets you create, edit, and manage ontologies for building intelligent systems. Whether you're working in biomedicine, e-commerce, or organizational modeling, Protégé gives you a flexible framework to design and organize complex knowledge bases.
You can use Protégé's intuitive interface to define concepts, relationships, and rules, making it easier to model real-world domains. The platform is backed by a strong academic and professional community, offering support, documentation, and collaborative features through both desktop and web-based versions.
If you need to build or share structured knowledge for research, development, or enterprise applications, Protégé provides the tools and community resources to help you get started and grow your projects.
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