Browsing an ontology

Open any published version in the browser to explore its classes, properties, shapes, and dependencies — no SPARQL required.

The version page#

Open a version from the public ontologies list. Alongside the metadata card — description, IRI, version, license, per-type property counts, and the namespaces it uses — the view is organised into tabs:

  • Classes — the class list, each linking to its definition. Selecting a class opens its annotations pane (labels, comments, and any other annotation properties).
  • Viz — the same classes as an interactive force-graph, for seeing the shape of the model at a glance.
  • Properties — a single table with a segmented filter: All / Object / Datatype / Annotation. Selecting a property shows its annotations in a pane on the right.
  • Shapes — the author’s SHACL shapes, when the version has any. (Absent otherwise.)
  • Dependencies — the owl:imports tree, colour-coded green (hosted on Ontoshire and visible to you) or grey (external / unresolved), with a per-node detail panel and a bundled download.
  • SPARQL — a CodeMirror editor to query the version directly, with a query-history panel (kept locally in your browser) and a library of curated example queries to start from.
How dependencies actually resolve. Exact-IRI matching, viewer-scoped visibility, what happens when several hosted copies share an IRI, and how to reuse or be reused — all in Imports & dependencies.
Want to cite or fetch it programmatically? Every public version also has a canonical URL that resolves to a human page in a browser and to RDF for a machine — see Resolvable URLs.

Private ontologies and owner controls#

A Private ontology (Pro-only — see the overview) is only ever visible to its owner, signed in. Everyone else gets a 404, indistinguishable from the version not existing — see Resolvable URLs for why. When you’re looking at your own private version:

  • A Private badge marks it, and it’s excluded from the public /ontologies list, search, and the public SPARQL endpoint.
  • The SPARQL tab and RDF download are not available for private ontologies yet — both query the public store, which never holds private graphs. An owner-only query path is planned but not built.
  • Owners get a Remove version control on the version page — it deletes that version’s ingested data (classes, properties, graph, search entries) but leaves the repository registered, so you can re-publish. This is destructive and immediate.