| ACE View + | Natural Language Processing + |
| Advanced Annotation Search + | Search +, Semantic Web + |
| Algernon + | Inference +, Reasoning + |
| Annotation Search View + | Semantic Web +, Navigation + |
| Annotation Template View + | Semantic Web + |
| Axiomé + | Rule Management +, Rule Elicitation +, Rule Visualization +, … |
| BNGen + | Export +, Bayesian Netoworks +, Inference + |
| Bayesian Network Tab (BNTab) + | Export +, Inference + |
| BeanshellView + | Semantic Web +, Software Engineering + |
| BioPortal Import Plugin + | Import +, Terminologies +, Biomedical Informatics + |
| BioPortal Reference Plugin + | Biomedical Informatics +, Search +, Navigation +, … |
| Bookmarks + | Navigation + |
| Cardinality View + | Semantic Web + |
| Change View + | Semantic Web + |
| ChangeAnalysisTab + | Visualization +, Project Management +, Validation + |
| Changes Tab + | Project Management + |
| ClojureTab + | Code Examples +, Inference +, Reasoning +, … |
| Cloud Views + | Visualization + |
| Collaborative Protege + | Project Management + |
| CompGuide Editor + | Biomedical Informatics +, Semantic Web +, Software Engineering +, … |
| DISCOWordSpaces + | Terminologies +, Natural Language Processing + |
| DL Query + | Semantic Web + |
| DL-Learner + | OWL +, Class Expressions +, Semantic Web +, … |
| DataMaster + | Import + |
| DroolsTab + | Inference +, Navigation +, Reasoning +, … |
| ELK + | Reasoning +, Inference + |
| EZPal + | Inference +, Reasoning + |
| EasyDB + | Export +, Import + |
| EditorPane + | Visualization + |
| EditorPanePlain + | Visualization + |
| Excel Import + | Import + |
| Expert System Shell r4f-pro + | Inference +, Reasoning +, Software Engineering +, … |
| FuzzyOWL2 + | Reasoning +, Inference +, Query +, … |
| HERAKLES + | Reasoning +, Inference + |
| HTML Chat + | Visualization +, Project Management + |
| HermiT + | Reasoning +, Inference + |
| HyperMod + | Export +, Reasoning + |
| HypergraphDB Plugin and Server + | Project Management +, Ontology Version Control +, Team Collaboration +, … |
| IDESSP + | Code Examples +, Inference +, Navigation +, … |
| Individual properties contextual assertion + | Navigation +, Reasoning +, Visualization + |
| Instance Selection + | Export +, Navigation +, Search + |
| InstanceTree + | Search +, Navigation + |
| JSave + | Software Engineering + |
| Jambalaya + | Visualization + |
| JessTab + | Inference +, Reasoning + |
| Knowtator + | Natural Language Processing + |
| Logical Difference Vizualiser (LogDiffViz) + | Visualization +, Versioning + |
| MESAM + | Software Engineering +, Semantic Web +, Reasoning + |
| Mastro DL-Lite Reasoner + | Reasoning +, Semantic Web +, Import +, … |
| Matrix + | Semantic Web +, Visualization + |
| MetaAnalysis + | Export + |
| NaturalOWL + | Natural Language Processing +, Semantic Web + |
| NavigOWL + | Visualization +, Navigation +, Semantic Web + |
| NoHR + | Reasoning +, Inference +, Query +, … |
| OBO Tools + | Navigation + |
| OBOConverter + | Import +, Export +, Semantic Web + |
| OLS2OWL + | Search +, Navigation +, Visualization + |
| OPL Plugin + | Biomedical Informatics + |
| OWL Lint + | Semantic Web +, Validation + |
| OWL2Query + | Inference +, Search +, Visualization + |
| OWL2ToRDB + | Export +, Software Engineering + |
| OWL2UML + | Visualization + |
| OWLAx + | Semantic Web +, Visualization + |
| OWLDiff + | Visualization +, Navigation +, Inference + |
| OWLDoc + | Semantic Web +, Visualization +, Export + |
| OWLPropViz + | Visualization + |
| OWLViz + | Visualization + |
| OntoBase + | Query +, Import +, Export + |
| OntoCheck + | Validation +, Project Management +, Terminologies + |
| OntoDebug + | Validation +, Software Engineering +, Biomedical Informatics + |
| OntoGraf + | Visualization +, Navigation + |
| OntoLing + | Natural Language Processing +, Terminologies + |
| OntoTweet + | Interface +, Twitter + |
| OntoViz + | Visualization + |
| Ontology Evaluation + | Semantic Web + |
| Ontology Generation Plugin (DOG4DAG) + | Ontology Learning +, Term Generation +, Definition Generation +, … |
| OntologyBeanGenerator + | Software Engineering +, Code Generation + |
| Ontop + | Reasoning +, Import +, Inference +, … |
| OpenMap Tab Plugin + | Software Engineering +, Visualization +, Navigation + |
| Outline and Existential Tree Views + | Navigation + |
| Owl2Cool + | Semantic Web +, Reasoning +, Import +, … |
| PROMPT + | Project Management + |
| PSM Librarian + | Inference +, Reasoning + |
| PromptViz + | Project Management +, Visualization + |
| PropertiesInDomainClass + | Visualization +, Navigation + |
| Protege Axiom Language (PAL) Tabs + | Inference +, Reasoning + |
| Protege Wizards + | Semantic Web + |
| Protege-OWL Code Generator + | Software Engineering +, Semantic Web + |
| Protege-nrepl + | Software Engineering +, Project Management + |
| ProtegeDocgen + | Export + |
| ProtégéLOV + | Search +, Semantic Web +, Software Engineering + |
| Queries and Export Tab + | Search +, Export + |
| RDB2ONT + | Project Management + |
| RDF Backend + | Import +, Export +, Semantic Web + |
| ROWLTab + | Semantic Web +, SWRLTab + |
| RacerProTG + | Reasoning +, Inference +, Validation +, … |
| SADI Service plugin + | Semantic Web +, Biomedical Informatics + |
| SKOS Editor + | Semantic Web + |
| SOVA + | Visualization + |
| SPARQL Query + | Semantic Web +, Search + |
| SWRL-IQ + | Reasoning +, Inference +, Query +, … |
| SWRLTab + | Inference +, Reasoning + |
| Search API + | Search + |
| Snorocket + | Biomedical Informatics +, Reasoning + |
| Snow Owl + | Biomedical Informatics +, Terminologies +, Semantic Web +, … |
| String Search Tab + | Search +, Navigation + |
| Sub Ontology Tab + | Project Management + |
| TGViz + | Visualization + |
| Taxonomy Cut+Paste + | Semantic Web + |
| TerMine Plugin + | Terminologies +, Natural Language Processing + |
| UML Backend + | Export +, Import +, Software Engineering + |
| UMLS Tab + | Biomedical Informatics +, Terminologies + |
| VOWL + | Visualization + |
| Watson Search Preview + | Search +, Software Engineering +, Code Examples + |
| XMI Backend + | Export +, Import +, Software Engineering + |
| XML Tab + | Import +, Export + |
