GraphDB vs RedStore

GraphDB is an RDF and SPARQL semantic graph database for storing data and performing inferencing in the Graphwise AI Platform. It supports SPARQL 1.1, RDF4J compatibility, RDFS and OWL 2 RL and QL rulesets, federated queries, and RDF-star. Its real-time forward-chaining reasoning operates across datasets, and the product page describes native GraphRAG and LangChain integration. GraphDB can run as a desktop or standalone server application, be self-hosted, or be deployed on AWS and Azure; downloads are listed for Windows, macOS, Linux, and a platform-independent distribution. The Free edition includes a Lucene connector, one parallel query, and up to five repositories; GraphDB 11 and later requires a free license. Enterprise supports multiple cores, unlimited repositories, high-availability clustering, and connectors for Elasticsearch, OpenSearch, Solr, and Kafka. Free is on-premise only with community support. Enterprise includes SLA support and is licensed per server CPU core, with each cluster node licensed separately. Free costs nothing; Enterprise pricing is on request.

RedStore is a free, self-hosted RDF triplestore written in C with the Redland library. It provides a built-in HTTP server and interface for loading and querying RDF data. Supported standards include SPARQL 1.0 Query, SPARQL 1.1 Protocol for RDF, SPARQL 1.1 Graph Store HTTP Protocol, and SPARQL 1.1 Service Description. The project describes support for a wide range of RDF formats, including Turtle. Storage modules can use hashes, MySQL, memory, PostgreSQL, SQLite, or Virtuoso when contexts are supported; hashes is the default. A URI can be loaded at startup, or RDF files can be sent with HTTP PUT. The /sparql endpoint works with the SPARQL Query Tool, and rdfproc supports offline operations. Redland is the only listed runtime dependency, with minimum versions for raptor2, rasqal, and redland. Installation uses configure, make, and make install. RedStore runs on Linux and macOS, offers API use, and has a Mac OS X app.