Apache Jena

Welcome to the Apache Jena project! Apache Jena™ is a Java framework for building Semantic Web applications. Jena provides a collection of tools and Java libraries to help you to develop semantic web and linked-data apps, tools and servers.

The Jena Framework includes:

• an API for reading, processing and writing RDF data in XML, N-triples and Turtle formats;
• an ontology API for handling OWL and RDFS ontologies;
• a rule-based inference engine for reasoning with RDF and OWL data sources;
• stores to allow large numbers of RDF triples to be efficiently stored on disk;
• a query engine compliant with the latest SPARQL specification
• servers to allow RDF data to be published to other applications using a variety of protocols, including SPARQL

In April 2012, Jena graduated from the Apache incubator process and was approved as a top-level Apache project.

Quick shortcuts

I would like to ...

• ... download Jena components
• ... use Jena with Maven
• ... find out more about the Jena project
• ... see who's involved
• ... follow a tutorial
• ... see how to get started with Jena
• ... report a bug
• ... get help using Jena
• ... read the Javadoc
• ... contribute to the project!
• ... get the DOAP description of the Jena project in RDF