RDF Graph Editor is a web-based tool for creating and sharing RDF graphs.
RDF is a graph-based data model commonly used to represent metadata, store knowledge graphs, and define and publish structured data on the web. Besides being the core building block of the Semantic Web and Linked Data, it provides an elegant and flexible way to capture any kind of knowledge and build concept maps, mind maps, social and IoT device graphs, and so on.
RDF Graph Editor is built to simplify the process of authoring RDF datasets.
The preview of RGE has a small knowledge graph that uses the Schema.org ontology and Google Knowledge Graph entities.