Virtuoso
Multi-model database platform for knowledge graphs, semantic data, and enterprise integration
- Vendor
- OpenLink Software
- Also known as
- virtuoso
Available worldwide · Popular in: US
What is Virtuoso?
A database server supporting both conventional relational data via SQL and semantic graphs via SPARQL and GraphQL. Designed to integrate diverse data sources into a unified system that enables knowledge graph creation, reasoning, and enterprise-wide data discovery.
Virtuoso pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
From $99.99/year for workstation licenses. Free open-source edition available under GPL. Perpetual enterprise licenses available on request.
Personal
- 2 Concurrent Sessions
- CPU Core Affinity
- Linux, Windows, macOS
- Workstation
Developer
- 5 Concurrent Sessions
- Application Development License
Project
- 16 Concurrent Sessions
- Unlimited CPU Cores
- Server-Grade Operating Systems
- Enterprise Support
What Virtuoso does
The capabilities that matter for graph databases, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Graph model
- RDF / triple
- Query language(s)
- SPARQL
- ACID transactions
- -
- Consistency model
- -
- Storage
- -
- Distributed / scale
- -
- Replication / HA
- ✓
- OLTP vs OLAP
- Both
- Deployment
- Self-hosted
- Full-text search
- -
- Built-in vector search
- -
- Licence class
- Source-available
- openCypher / TinkerPop standard
- ✓
Platform & deployment
Independently observed- macOS
- Web
- Linux
- Windows
- On-premise
- Self-hosted
Integrations (6)
Independently observed- SQLAlchemy
- RDFLib
- SQL databases
- NoSQL databases
- Linked Data sources
- APIs
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Virtuoso FAQ
Common questions about Virtuoso, answered from independent, dated evidence.
What is Virtuoso?
Enterprise-grade platform designed to consolidate and govern data from diverse sources—databases, knowledge graphs, file systems, and APIs—with built-in support for AI agents and language model integration. It is indexed under Graph Databases.
How much does Virtuoso cost?
Virtuoso is a paid product; published pricing starts at $99.99. It is sold across 4 plans (Personal, Developer, Project and Enterprise). There is no free tier. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.
What platforms does Virtuoso support?
Virtuoso supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Can Virtuoso be self-hosted?
Yes. Virtuoso can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
What does Virtuoso integrate with?
We have confirmed 5 integrations for Virtuoso, including SQLAlchemy, RDFLib, SQL databases, Linked Data sources and APIs. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Is Virtuoso open source?
Yes. Virtuoso is published under the BSD licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Where is Virtuoso available?
Virtuoso is available worldwide. Its primary market is the United States.
Virtuoso alternatives
Other graph databases we track, ranked by the same independent score.
- Amazon NeptuneAuto-scaling graph database that improves generative AI accuracy through relationship datamedium · 73%
- FalkorDBA graph database for building AI applications with vector search and multi-tenant supportmedium · 64%
- MemgraphIn-memory graph database for real-time AI systems and analyticsmedium · 58%
- Neo4jA graph database platform for modeling data relationships and powering AI applicationsmedium · 69%
- JanusGraphA distributed, open-source graph database built for massive scalemedium · 67%
- OrientDBAn integrated data platform supporting graphs, documents, and searchhigh · 77%
Compare Virtuoso
Side by side against other graph databases, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Virtuoso, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.05 | 5.4 | ✓ |
| Capabilities | 46 | 0.10 | 4.5 | ✓ |
| Development activity | 32 | 0.14 | 4.3 | ✓ |
| Reliability | 50 | 0.07 | 3.4 | ✓ |
| Stars | 56 | 0.05 | 2.7 | ✓ |
| Release cadence | 21 | 0.08 | 1.7 | ✓ |
| Security score | 27 | 0.05 | 1.5 | ✓ |
| Integrations | 24 | 0.05 | 1.3 | ✓ |
| Price level | 25 | 0.04 | 1.0 | ✓ |
| Package downloads | 18 | 0.04 | 0.7 | ✓ |
| Dependent projects | 5 | 0.05 | 0.3 | ✓ |
| Security posture | 0 | 0.12 | 0.0 | - |
| Developer Q&A activity | 0 | 0.14 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 9 | mediumsource · 2026-10-13 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 7 items | mediumsource · 2026-09-10 · 63% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Workload: both · Deployment: self_hosted · Graph model: rdf_triple · Licence class: source_available · Query language: SPARQL · Replication ha: Yes | mediumsource · 2026-10-13 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 6 | mediumsource · 2026-08-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C | mediumsource · 2026-10-13 · 63% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | BSD | highsource · 2026-10-13 · 90% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | mediumsource · 2026-10-13 · 50% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-03 · 60% |
Security
Is Virtuoso the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Virtuoso against the rest of the graph databases we index, using the same dated evidence weighted your way.
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