Ontology IDE for VS Code — browse and edit Turtle/OBO/RDF/XML/OWL/XML, query, reason, validate, and diff. Not a full Protégé replacement — see Known limitations and What ships today.
Current release: v0.28.1
Start here
- Install from the Marketplace or Open VSX (Cursor).
- Follow First success (~10 min) on Read the Docs (sample files + edit
Person).
You do not need to Trust the workspace for the default bundled language server.
Docs
| Topic | Link |
|---|---|
| What ships today | SHIPPED |
| Known limitations | Known limitations |
| Install options (VSIX, offline) | Install VS Code |
| CLI / CI / Rust crates (optional) | Install CLI & CI (detail) |
| Full documentation | Read the Docs |
| Extension overview | VS Code extension docs |
Editable today: Turtle (
.ttl), OBO (.obo), RDF/XML (.owl/.rdf), and OWL/XML (.owx). XML is semantic re-serialize (not Protégé byte-identical). JSON-LD / TriG / N-Triples remain read-only.
Names: Strixonomy IDE = this extension. Strixonomy engine = Rust CLI +
strixonomy-lsp. Install the CLI withcargo install strixonomy-cli, notstrixonomy. Most IDE users never need the CLI.
Features (summary)
Explorer, Entity Inspector, Query Workbench (SQL subset + SPARQL + DL), Manchester editor, graphs, reasoner (EL–DL profiles, realize / instance check), SWRL Rule Browser/Editor, semantic diff, Manage Imports, refactoring preview, Plugin SDK 1.0 (frozen wire — manager v0.33, official registry v0.34, marketplace v0.35+).
Details: Feature tour · Supported formats · Protégé vs Strixonomy
Development
See Contributing and Extension development.
License: MIT (extension). Strixonomy engine: MIT OR Apache-2.0.