Eclipse RDF4J vs Protégé
Eclipse RDF4J
rdf4j.orgProtégé
protege.stanford.eduSide by side
| Figure | Eclipse RDF4J | Protégé |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Knowledge Graph Software | 9.0 (#3) | 8.5 (#8) |
| Documentation depth | Documentation includes getting-started tutorials, programming guides, reference material, tool manuals, release notes and JavaDoc links. | Official documentation includes installation, getting started, views, menus, class-expression syntax, FAQs, tutorials, user guides, and developer documentation. |
| License | The project states that Eclipse RDF4J is licensed under the Eclipse Distribution License version 1.0. | Protégé Desktop is released under the BSD 2-Clause license. |
| Purpose | RDF4J is a modular Java framework for parsing, storing, querying, and reasoning over RDF data. | Protégé is an ontology editor used to build and manage ontologies. |
| Self-hosting | RDF4J Server and Workbench are deployable as web applications, with documentation covering Tomcat installation and repository configuration. | WebProtégé can be built with Maven or run with Docker and MongoDB on a user-controlled server. |
| What it does | Eclipse RDF4J is a modular Java framework for parsing, storing, inferring and querying RDF data. | Protégé is an ontology editor for creating and managing OWL ontologies and knowledge models. |
Plans
In their own words
Eclipse RDF4J
Eclipse RDF4J is a modular Java framework for parsing, storing, querying, and reasoning over RDF data. It supports SPARQL 1.1 query and update, and its API can access remote RDF repositories in the same way as local ones. Supported formats include RDF/XML, Turtle, N-Triples, N-Quads, JSON-LD, TriG, and TriX. Storage options include a transactional in-memory store with optional disk persistence and a transactional Native Store aimed at medium-sized datasets around 100 million triples. Extensions add full-text search, RDFS inferencing, rule-based reasoning, SHACL and SPIN validation, and geospatial queries. The SDK bundles libraries, Server, Workbench, Console, and Javadoc API; Workbench includes a web interface with a SPARQL editor. Developers can use Maven artifacts or download an SDK zip or onejar. RDF4J is free under the Eclipse Distribution License, version 1.0. The latest stable release, 6.1.0, requires Java 25 or newer. The project describes its core databases as mainly intended for small to medium-sized datasets and notes third-party stores may scale further or offer additional features.
Protégé
Protégé is a free ontology editor for building and managing ontologies, offered as Protégé Desktop and the browser-based WebProtégé. Both editions support OWL 2 and are described as cross-compatible. WebProtégé supports collaborative viewing and editing, with sharing, permissions, threaded discussions, watches, email notifications, and revision history. Ontologies can be uploaded and downloaded in formats including RDF/XML, Turtle, OWL/XML, and OBO. Protégé Desktop connects directly to description logic reasoners such as HermiT and Pellet. It can keep multiple ontologies in one workspace and provides structure visualization, inference explanations, and refactoring operations. Desktop is written in Java and can be extended with plug-ins. The project provides documentation including FAQs, tutorials, user guides, and developer documentation. Free support is available through mailing lists monitored by team members and experienced community users; users must subscribe before posting. The project says researchers, organisations, and governments worldwide use Protégé. Desktop is community maintained, with Damien Goutte-Gattat identified as its current primary maintainer.