#ontology

RDF Studio

StefanAvesand

Browse, edit, and visualize RDF knowledge graphs with tree views, SPARQL, remote endpoints, and graph visualization.

LinearCode

LinearCode

See any file as an interactive graph: JSON, XML, YAML, CSV, Parquet, PDF, Markdown, OpenAPI, RDF/OWL, Graphviz, call graphs for Python/JS/PHP/R/Shell — plus live REST APIs and MCP servers.

OntoGraph Lite: OWL Ontology Editor

ysgao

Protégé-like OWL ontology editing, reasoning, and visualization for VS Code

Strixonomy

strixonomy

Ontology IDE for VS Code powered by Strixonomy. Browse, edit Turtle, query, reason (EL–DL), validate, and diff OWL/RDF/OBO ontologies from the IDE or CI.

Synesis

synesis-lang

Knowledge Engineering in VS Code: Official LSP client for Synesis.

Syntax highlighter for the terse syntax of Reasonable Ontology Templates (stOTTR).

GraphForge

CurateLabsAI

Explore GraphForge projects in VS Code — Cypher, analyst verbs, ontology, and epistemic-aware result graphs.