Modular, object based libraries and APIs for manipulating the RDF graph, triples, URIs and Literals.
Storage for graphs in memory and persistently with Sleepycat/Berkeley DB, MySQL 3-5, PostgreSQL, AKT Triplestore, SQLite, files or URIs.
Support for multiple syntaxes for reading and writing RDF as RDF/XML, N-Triples and Turtle Terse RDF Triple Language, RSS and Atom syntaxes via the Raptor RDF Syntax Library.
Querying with SPARQL and RDQL using the Rasqal RDF Query Library.
Data aggregation and recording provenance support with Redland contexts.
Language Bindings in Perl, PHP, Python and Ruby via the Redland Bindings package.
Command line utility programs rdfproc (RDF), rapper (parsing) and roqet (query).
Portable, fast and with no known memory leaks.