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Ask about or discuss RDF4J

Gitter you can find us on Gitter!

RDF4J Github Discussions is the best place to ask questions, propose new ideas or discuss other issues related to RDF4J.

We also have a Google group called rdf4j-users. You can browse through the group messages without joining, but you’ll need to join the group to be able to post.

The RDF4J development team uses the mailinglist to discuss development progress.

Reporting bugs and requests for improvement

If you think you’ve found a bug in RDF4J, or wish to log a request for a new feature or improvement, please use the RDF4J issue tracker. Before you add your new issue, though, please have a look around to see if it’s not already there.


Eclipse RDF4J™ is a powerful Java framework for processing and handling RDF data. This includes creating, parsing, scalable storage, reasoning and querying with RDF and Linked Data. It offers an easy-to-use API that can be connected to all leading RDF database solutions. It allows you to connect with SPARQL endpoints and create applications that leverage the power of linked data and Semantic Web.

RDF4J Architecture

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