From W3C Wiki

Morla is an multiplatform editor of RDF documents.

With Morla you can import RDFS documents and use its content to write new RDF triples. Templates are also RDF documents and they make Morla easily personalizeble and expandable.

You can also use Morla as RDF navigator, wandering among the net knots of the RDF documents present on internet exactly as we are used to do with normal browsers.

Morla is a Free Software project released under license GPL v2.0.

Some links: