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Developer(s) Stardog Union
Stable release
4.1.3 / August 8, 2016 (2016-08-08)
Written in Java
Operating system Cross-platform
Type Semantic Web, Graph Database

Stardog is a semantic graph database, implemented in Java. It provides support for RDF and all OWL 2 profiles providing extensive reasoning capabilities[1][2] and uses SPARQL as a query language.[3] APIs are available for the Jena and Sesame as well as SNARL, the Stardog Native API for the RDF Language. Bindings for its HTTP protocol are also available in Javascript, .Net (programming language), Ruby (programming language), Clojure, and Python. Support for the Spring (framework) is also available.

Stardog 1.0 was released in June 2012[4] in a free community edition as well as its commercial offering. The 2.1 release in January 2014 saw major breakthroughs in scalability.[5] And in 3.0,[6] it added an HA cluster and significant performance enhancements for both reads and writes.

Stardog is developed by Complexible, based in Washington, DC.

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