sparql

RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information.

SPARQL graph database

A curated list of various semantic web and linked data resources.

A distributed knowledge graph store

Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.

Plan, apply and roll back changes to a production ontology, with a blast radius report and a proof an auditor can re-check.

Blazegraph High Performance Graph Database

Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform

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

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

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.

INCEpTION provides a semantic annotation platform offering intelligent annotation assistance and knowledge management.

Graph Data Science: an abstraction layer in Python for building knowledge graphs, integrated with popular graph libraries – atop Pandas, NetworkX, RAPIDS, RDFlib, pySHACL, PyVis, morph-kgc, pslpython, pyarrow, etc.

🔗 Semantic MediaWiki turns MediaWiki into a knowledge management platform with query and export capabilities

The low-code Knowledge Graph application platform. Apache license.

📬 A knowledge graph querying framework for JavaScript

EasyRdf is a PHP library designed to make it easy to consume and produce RDF.

Information Integration Tool

A wrapper for a remote SPARQL endpoint