Sparql GitHub Repositories (2026) · Open Source Tools

Local-first AI agent memory with a knowledge graph, ontology constraints, and traceable reasoning—all in one SQLite file.

SPARQL graph database

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

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.

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.

SPARQL Anything is a system for Semantic Web re-engineering that allows users to ... query anything with SPARQL.

Eclipse RDF4J: scalable RDF for Java

RDF.rb is a pure-Ruby library for working with Resource Description Framework (RDF) data.

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