dotNetRDF
https://github.com/dotnetrdf/dotnetrdf
dotNetRDF is a powerful and flexible API for working with RDF and SPARQL in .Net environments
FSharp.RDF
https://github.com/ryansroberts/FSharp.RDF
Graphite
https://github.com/cgutteridge/Graphite
PHP RDF Library
InteractiveGraph
https://github.com/grapheco/InteractiveGraph
InteractiveGraph provides a web-based interactive visualization and analysis framework for large graph data, which may come from a GSON file, or an online Neo4j graph database. InteractiveGraph als…
N3.js
https://github.com/rdfjs/N3.js
Lightning fast, spec-compatible, streaming RDF for JavaScript
Protege
https://github.com/protegeproject/protege
rdflib
https://github.com/RDFLib/rdflib
RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information.
rdflib.js
https://github.com/linkeddata/rdflib.js
Linked Data API for JavaScript
rdfstore-js
https://github.com/antoniogarrote/rdfstore-js
JS RDF store with SPARQL support
VOWL
https://github.com/VisualDataWeb/OWL2VOWL
Converting ontologies for WebVOWL
https://github.com/VisualDataWeb/WebVOWL
Visualizing ontologies on the Web