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Graph database implementing the RDF and SPARQL standards. Very fast and scales to more than a trillion triples on a single commodity machine

GraphRAG, RAG, LlamaIndex, LangChain, 15 Prop Graph, 4 RDF, 10 Vector, 3 Search DBs. 14 data srcs, auto sync, Alfresco, Nuxeo, SharePoint, Box, CMIS, S3,GCS,Azure, web. KG auto-bld, Ontologies, 13 LLM providers, Docling, LlamaParse, LiteParse, Hybrid Search, AI Chat. TypeScript React, Vue, Angular, Python, REST, MCP, OpenArch, Langflow, CocoIndex.

React-based web application that enables users to visualize both property graph and RDF data and explore connections between data without having to write graph queries.

Redland Raptor RDF syntax library

Lightning fast, spec-compatible, streaming RDF for JavaScript

Ontop is a platform to query relational databases as Virtual RDF Knowledge Graphs using SPARQL

Github mirror of "wikidata/query/rdf" - our actual code is hosted with Gerrit (please see https://www.mediawiki.org/wiki/Developer_access for contributing

Eclipse RDF4J: scalable RDF for Java

Graph+Semantics: Import/Export RDF from Neo4j. SHACL Validation, Model mapping and more.... If you like it, please ★ ⇧

Kotlin Multiplatform library for parsing RSS, Atom, and RDF feeds on Android, iOS, macOS, tvOS, watchOS, JVM, JS, and Wasm.

Library extending Jupyter notebooks to integrate with Apache TinkerPop, openCypher, and RDF SPARQL.

Grafeo is a pure-Rust, high-performance graph database that can be embedded as a library or run as a standalone database, with optional in-memory or persistent storage. Grafeo supports both LPG and RDF and all major query languages.

Free, open-source web app for learning about ontologies and Microsoft Fabric IQ. Explore a catalogue of pre-built ontologies, design your own visually, export as RDF/XML, and share interactive diagrams. Zero backend, fully static.