Tech riderRev. 30 Sept 2026

Virtuoso Universal Server

Ch 097.3of 33 Knowledge Graph Software

1Runs onAPI, Linux, Mac, self-hosted, Web, Windows
2Costsfree trial
3Deployment modelhybrid
4Semantic layerYes
5Access protocolsSQL, SPARQL, XQuery, XPath, ODBC, JDBC, UDBC, OLE DB, SOAP, REST, HTTP
6REST API accessYes
7Query accelerationYes

7 lines stated Written from the maker's own pages: virtuoso.openlinksw.com

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Overview

Virtuoso Universal Server is ranked #9 of 33 in knowledge graph software on Specifiction. It runs on API, Linux, macOS, Self-hosted, Web, Windows. A free trial is offered.

Virtuoso Universal Server plans and pricing

All plans

Personal $99.99 once 2 concurrent users · 2 CPU cores · Linux, Windows, macOS · Workstation virtuoso.openlinksw.com · 30 Sept 2026

Developer $199 once 5 concurrent users · 8 CPU cores · Linux, Windows, macOS · Workstation virtuoso.openlinksw.com · 30 Sept 2026

Project $499 once 5 concurrent users · 16 CPU cores · Linux, Windows, macOS · Workstation virtuoso.openlinksw.com · 30 Sept 2026

Enterprise Not published Unlimited concurrent sessions · Unlimited CPU cores · Server-grade operating systems · Enterprise support · Custom licensing terms virtuoso.openlinksw.com · 30 Sept 2026

Compared on knowledge graph software

Free plan: Yesvirtuoso.openlinksw.com
Deployment model: hybridvirtuoso.openlinksw.com
Semantic layer: Yesvirtuoso.openlinksw.com
Access protocols: SQL, SPARQL, XQuery, XPath, ODBC, JDBC, UDBC, OLE DB, SOAP, REST, HTTPvirtuoso.openlinksw.com
REST API access: Yesvirtuoso.openlinksw.com
Query acceleration: Yesvirtuoso.openlinksw.com

Facts

Product: Virtuoso is a multi-model DBMS and HTTP-based application server that provides access to disparate data sources.virtuoso.openlinksw.com · 30 Sept 2026
Data models: Virtuoso supports relational SQL data, RDF, SPARQL, XML, JSON, and web services.virtuoso.openlinksw.com · 30 Sept 2026
Virtualization: Its virtualization layer lets users access and query data from multiple sources through a unified database view.virtuoso.openlinksw.com · 30 Sept 2026
Protocols and integrations: The platform connects to external data sources through HTTP, ODBC, and JDBC and supports standards including SQL, SPARQL, GraphQL, and RDF.virtuoso.openlinksw.com · 30 Sept 2026
Security: The maker describes fine-grained attribute-based access controls and lists encryption at rest as a commercial feature.virtuoso.openlinksw.com · 30 Sept 2026
Licensing: The maker offers open-source and commercial licenses; its pricing page says the open-source version is under GPL.virtuoso.openlinksw.com · 30 Sept 2026
Commercial features: Commercial licensing includes advanced security, custom reasoning and inference, high-availability replication, and professional support.virtuoso.openlinksw.com · 30 Sept 2026
Support: Commercial support can include bug fixes, feature enhancements, performance tuning, and consulting, with specifics depending on the agreement.virtuoso.openlinksw.com · 30 Sept 2026
Deployment: The maker provides installation guides for Linux/Unix, Docker, Windows, and macOS, and describes on-premises/BYOL, AWS, and Azure deployment options.virtuoso.openlinksw.com · 30 Sept 2026
Scaling: The maker says a single-server deployment can scale beyond 100 billion RDF triples, with Elastic Cluster Edition available for higher demands.virtuoso.openlinksw.com · 30 Sept 2026
Typical use cases: The maker lists AI-driven customer support, enterprise knowledge management, data governance, data productization, and data integration as typical use cases.virtuoso.openlinksw.com · 30 Sept 2026
Company: OpenLink Software is a privately held company founded in 1992.openlinksw.com · 30 Sept 2026