Virtuoso Open Source Edition

About

OpenLink Virtuoso Open-Source Edition (VOS) is a multi-model RDBMS platform providing high-performance and scalable data management. It integrates relational, graph and document data models within a single database engine.

VOS includes Data-Integration Middleware with support for ODBC and JDBC, facilitating connection and interaction between data sources and provides data-exchange and transformation capabilities.

VOS includes an HTTP(S) Application Server Platform for deploying web applications and services. It provides built-in support for web standards and protocols. Building on this, VOS is a Linked Data deployment platform with support for RDF, SPARQL and semantic web applications.

Installation

• Virtuoso Server

  • Downloading installers for Linux, macOS or Windows from Github releases
  • Running Virtuoso via Docker
  • Building from source on Linux, macOS and Windows
  • Upgrading from previous versions

• Optional Components

  • JDBC drivers and providers for Jena and RDF4j are available from Maven Central
  • Integration with GeoSPARQL

• Recent commits, News and ChangeLog

Documentation

• Database Administration Manual
• VOS Wiki
• SPARQL ANYTIME implementation notes

Reporting Security Vulnerabilities

Security vulnerabilities may be reported by following the instructions in SECURITY.md.

Support

Issues with Virtuoso may be reported by opening a Github issue, providing a summary, description and steps to reproduce.

Assistance is available via our OpenLink Community forums, or if covered by a support contract, you can also create a Support Case through the OpenLink Support Site.

Contributing

Contributions are welcome. Please read our Contributor Guidelines before submitting a pull request. They cover the patch workflow, commit message format, tests, licensing, and our policy on AI-assisted contributions. For notes on working with the git tree, see README.GIT.md.

License

VOS is licensed under the GNU General Public License Version 2, dated June 1991.

Credits

The Virtuoso Open-Source Edition (VOS) project acknowledges incorporation of code from several other projects. See CREDITS for details.

See Also

• OpenLink Virtuoso (Commercial Edition) https://virtuoso.openlinksw.com/
• OpenLink Software corporate home https://www.openlinksw.com/