OpenLink Virtuoso
OpenLink Virtuoso: A broad open-source choice for teams combining SQL, RDF, graph, and federated data. Ranked #18 of 26 in Multimodel Databases by our editors (7.5/10); pricing: Open source · 30-day trial; best for SQL and RDF teams needing open-source flexibility.
At a glance
- Editor score7.5 / 10
- PricingOpen source · 30-day trial
- Best forSQL and RDF teams needing open-source flexibility
- Paid fromFree
- Supported data modelsrelational, RDF/graph, XML
- Founded1992
- Facts checked20 Sep 2026
Where it wins
- Combines SQL, RDF storage, SPARQL, and SPASQL in one platform
- Supports federation, replication, clustering, and data virtualization
- Runs across Linux, Windows, macOS, AWS, and Microsoft Azure
Where it doesn't
- Broad capabilities may exceed the needs of single-model database teams
- Enterprise licensing uses custom terms rather than a fixed published plan
- Commercial pricing has no free plan and starts at 99.99
Our verdict on OpenLink Virtuoso
OpenLink Virtuoso is a cross-platform multi-model database and data integration platform for organizations working with relational, RDF, graph, XML, and federated data. It combines a relational SQL engine with native RDF quad storage, SPARQL querying, SPASQL integration, RDF views over relational data, and virtual access to remote SQL and XML sources. Its open-source availability and support for Linux, Windows, macOS, APIs, containers, on-premises deployments, AWS, and Microsoft Azure make it a fit for SQL and RDF teams that need several data models in one environment.
Pricing is organized around four plans. Personal includes SQL, RDF, and multi-model database capabilities for workstation operating systems. Developer adds an application development license, while Project provides a project license; both support Linux, Windows, and macOS workstations. Enterprise adds unlimited concurrent sessions, unlimited CPU cores, server-grade operating systems, enterprise support, and custom licensing terms. The commercial starting price is 99.99, and a 30-day free trial is available. Teams should distinguish the workstation-oriented plans from Enterprise when planning production server deployments.
Virtuoso’s integration surface includes ODBC, JDBC, ADO.NET, OLE-DB, GraphQL, and HTTP, with connectivity for AWS and Microsoft Azure. Its platform also covers replication and synchronization, shared-nothing clustering, partition replication, web-services deployment, and role-based and row-level security. Choose it when SQL and RDF workloads, federation, or multi-model integration justify a broad platform. Teams seeking a narrowly focused relational or graph database may prefer a simpler single-model option.
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OpenLink Virtuoso pricing
All 4 OpenLink Virtuoso plans and prices →
OpenLink Virtuoso fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Supported data models | relational, RDF/graph, XML |
| Deployment options | Both |
| SQL support | Yes |
| Graph querying | Yes |
| Vector search | Not verified |
| Multi-region support | Not verified |
| Free trial | 30 days |
| Deployment | Cloud, Self-hosted |
| Platforms | Windows, macOS, Linux |
| Compliance & security | GDPR |
| Support | Tickets, Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 8 integrations: ODBC, JDBC, ADO.NET, OLE-DB, GraphQL, HTTP … |
| Pricing | Open source · 30-day trial (source) |
| Website | virtuoso.openlinksw.com |
| Facts checked | 20 Sep 2026 |
OpenLink Virtuoso integrations
OpenLink Virtuoso lists 8 integrations on its own site.
- ODBC
- JDBC
- ADO.NET
- OLE-DB
- GraphQL
- HTTP
- AWS
- Microsoft Azure
Alternatives to OpenLink Virtuoso
- MarkLogicA broad enterprise database for teams managing connected, varied data types.9.2
- Google Cloud SpannerA strong fit for globally consistent SQL workloads that also need search and graph capabilities.9.1
- Amazon DynamoDBA managed AWS database for scalable key-value and document workloads.9.0
See all OpenLink Virtuoso alternatives →
Also Ranked In
OpenLink Virtuoso is ranked in 4 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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