JRDF is an open source RDF framework for Java. It provides an object oriented model of RDF graphs including URIs, Literals and Blank Nodes. It was initially released in 2003 from work on the TKS and Kowari triple stores (later Mulgara) in order to provide an API that could be used to bridge other APIs such as Jena and to model RDF concepts. These APIs allow RDF to be created and written using various formats such as N3 and RDF/XML.