Class node
Individual node
Place / value node
drag to pan · scroll to zoom
The Semantic Web represents everything as subject-predicate-object triples, and this simulator renders a live one as a 2D force-directed graph: classes, individuals and values repel each other and are pulled together along predicate edges until the layout settles, exactly like a real knowledge-graph visualizer laid flat on a canvas. Flip on RDFS reasoning to watch the reasoner walk the subclass hierarchy and add inferred type edges no one asserted by hand, add random triples to grow the graph, tune the spring stiffness and particle flow speed to see the layout physics respond live, and build a basic-graph-pattern query from the Subject / Predicate / Object dropdowns — using ? as a SPARQL-style wildcard — to see exactly which triples in the store match, the same mechanism a real SPARQL endpoint uses over Linked Data such as DBpedia or Wikidata. Drag to pan the view and scroll to zoom.