YARSPG is an YARS-PG reader/writer for the RDF.rb library suite.

Simple triples storage for projects too small to install an RDF database.

Rena is a Ruby library for manipulating RDF files.

A Ruby DSL for generating RDF in the Turtle format

Yet another OWL documentor. YOWL is a command line utility that can read a number of RDFS/OWL files, called the repository, and generate a documentation website from it, with visualisations like Class Diagrams (as SVG), Individuals Diagrams and Import Diagrams.

BioInterchange is a Ruby gem, command-line tool, web-service for turning heterogeneous data formats such as JSON, XML, GFF3, etc., into RDF."

Offers object-oriented access to RDF (with adapters to several datastores). Version of the Talia project. THIS IS NOT THE OFFICIAL VERSION.