Oxigraph is a graph database implementing the SPARQL standard.
Its goal is to provide a compliant, safe, and fast graph database based on the RocksDB key-value store. It is written in Rust. It also provides a set of utility functions for reading, writing, and processing RDF files.
Oxigraph is in heavy development and SPARQL query evaluation has not been optimized yet. The development roadmap is using GitHub milestones.
It is split into multiple parts:
- The database written as a Rust library. Its source code is in the
pyoxigraphthat exposes Oxigraph to the Python world. Its source code is in the
- Oxigraph server that provides a standalone binary of a web server implementing the SPARQL 1.1 Protocol and the SPARQL 1.1 Graph Store Protocol. Its source code is in the
Oxigraph implements the following specifications:
- SPARQL 1.1 Query, SPARQL 1.1 Update, and SPARQL 1.1 Federated Query.
- Turtle, TriG, N-Triples, N-Quads, and RDF XML RDF serialization formats for both data ingestion and retrieval using the Rio library.
- SPARQL Query Results XML Format, SPARQL 1.1 Query Results JSON Format and SPARQL 1.1 Query Results CSV and TSV Formats.
A preliminary benchmark is provided. There is also a document describing Oxigraph technical architecture.
This project is licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in oxigraph by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.