Welcome to BioPortal, the world's most comprehensive repository of biomedical ontologies

Ontology Visits (November 2018)
BioPortal Statistics
  • Ontologies 762
  • Classes 9,159,281
  • Resources Indexed 0
  • Indexed Records 0
  • Direct Annotations 95,468,433,792
  • Direct Plus Expanded Annotations 144,789,582,932