In addition to downloading Protégé, we encourage you to browse the library of ontologies on our Wiki. The ontologies listed on our Wiki were developed either here at Stanford or by our user community. Follow individual instructions to download the ontologies that are of interest to you.

• Browse OWL ontologies
• Browse Frame-based ontologies
• Browse ontologies in other formats (e.g., DAML+OIL, RDF Schema, etc.)

If you have developed an ontology using Protégé, we encourage you to add a link to our Wiki.