Ontology Explorer
Eight bundled ontologies, RDF, RDFS, OWL, SHACL, PROV-O, QUDT (core schema plus a hand-authored unit sample), SAREF core + SAREF4ENER, and BFO, browsable through a Brick-schema-inspired documentation interface (class/property trees, per-term property tables, SHACL validation panels, hierarchy breadcrumbs) and a Connected-Papers-inspired graph view (hop-distance fade-out from a focus term, radial/force/tree layouts, togglable relationship types, PNG export).
The two views are integrated in both directions: every term page embeds a live neighborhood preview that opens into the full graph, and every graph node carries a documentation inspector with a link back to its docs page. A ⌘K command palette searches terms, ontologies, and actions across everything loaded.
Beyond the bundled set, the explorer accepts user-supplied ontologies: drop in any Turtle file and it is parsed, validated, persisted in the browser, and treated exactly like a bundled dataset, documentation, search, and visualization included. Datasets are version-aware, with a switcher that activates as more versions of an ontology are registered.
The app lives in its own repository (kglabs) with its own build pipeline, linked into this site as a git submodule and mounted as static files, so it can move to its own domain later without touching anything but this page’s demo link.