OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text, Geospatial and Key-Value models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries. OrientDB Community Edition is Open Source using a liberal Apache 2 license.

Docker image for Apache Jena's Fuseki SPARQL endpoint

ATTX Provenance service for exposing provenance related information.

Vert: Universal Graph Interface for Python

Graph Visualization and PageRank of the Yelp Social Recommender Network

A simple graph store.

Expressive Reasoning Graph Store (ERGS) is an OWL reasoner and an RDF triple store built on top of a Property Graph architecture.