Protégé vs Stardog
Protégé
protege.stanford.edu
Stardog
stardog.comSide by side
| Figure | Protégé | Stardog |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 5 |
| Spec score · Knowledge Graph Software | 8.5 (#8) | 8.4 (#11) |
| Documentation depth | Official documentation includes installation, getting started, views, menus, class-expression syntax, FAQs, tutorials, user guides, and developer documentation. | Official documentation includes administration, querying, virtualization, inference, constraints, tutorials, API references, examples and application-building guidance. |
| License | Protégé Desktop is released under the BSD 2-Clause license. | Stardog Free is proprietary, licensed software and the pricing FAQ explicitly says it is not open source. |
| Purpose | Protégé is an ontology editor used to build and manage ontologies. | Stardog connects enterprise data into a semantic layer for AI, analytics, search, and applications. |
| Rating on G2 | 4.6 out of 5 from 5 reviews. | 4.2 out of 5 from 18 reviews |
| Self-hosting | WebProtégé can be built with Maven or run with Docker and MongoDB on a user-controlled server. | Users can download and install a self-managed database on their own infrastructure or deploy through AWS Marketplace. |
| Support | User and developer mailing lists are monitored by Protégé team members and experienced community users, but subscription is required before posting. | Enterprise licenses include base support, a dedicated Customer Success representative, and access to Solutions Architects. |
| What it does | Protégé is an ontology editor for creating and managing OWL ontologies and knowledge models. | Stardog is a semantic AI and enterprise knowledge-graph platform that unifies data and adds business context for analytics, applications and AI. |
Plans
Stardog
- Stardog Cloud FreeFree
- Stardog FreeFree
- Stardog FreeFree
- Stardog Cloud EnterprisePriced on request
- Stardog EnterprisePriced on request
In their own words
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.