A Semantic Web knowledge graph consists of RDF resources identified by URLs which you ideally host somewhere so users can enter the URL of an entity, like https://dbpedia.org/resource/Leipzig, in a browser and get a human-readable representation of the resource.
Normally you need a separate SPARQL endpoint (kind of a graph database) and then connect your RDF browser to that, but that is wasteful when you have a small knowledge base, and when the SPARQL endpoint is down due to overload, then you can't access your resources anymore.
To solve this I made RickView (for "RDF/Rust quick viewer"), a single binary that holds a knowledge graph in memory and acts as a web server for RDF resources.
Here are some RDF knowledge graphs you can browse that are served by RickView:
- <https://www.snik.eu/ontology/bb>
- <https://hitontology.eu/ontology/>