The RDF4J framework provides a set of vendor-neutral APIs for highly scalable storage, reasoning, and retrieval of RDF and OWL. Here, we list some available third-party database solutions that implement the RDF4J APIs, and are developed by major contributors to the RDF4J project.
Ontotext GraphDB™ (formerly OWLIM) is a leading RDF Triplestore built on OWL (Ontology Web Language) standards. GraphDB handles massive loads, queries and OWL inferencing in real time. Ontotext offers GraphDB in several editions, including GraphDB™ Free, GraphDB™ Standard and GraphDB™ Enterprise. Since release 8, GraphDB is fully compatible with the RDF4J framework.
Stardog is a fast, lightweight, pure Java RDF store for mission-critical apps. It supports highly scalable storage and retrieval as well as OWL reasoning.
Blazegraph™ (formerly known as Bigdata) is an enterprise graph database by Systap, LLC that provides a horizontally scaling storage and retrieval solution for very large volumes of RDF.
MarkLogic Sesame API
The MarkLogic Sesame API is a full-featured, easy-to-use interface, that provides access to the MarkLogic triplestore via the Sesame/RDF4J APIs. It offers several additional features such as permissions, and combination queries. More details can be found in the MarkLogic Developer documentation.
Other Sesame-compatible storage solutions
- Sesame Adapter for Oracle Database is an Oracle-developed adapter component for accessing Oracle Semantic Technolgies via the Sesame/RDF4J APIs.
- Virtuoso Sesame Provider is an OpenLink-developed component that allows accessing an OpenLink Virtuoso triplestore via the Sesame/RDF4J APIs.
- Strabon is a geospatial RDF triplestore based on Sesame/RDF4J.