# JanusGraph vs Virtuoso

**Leader by vioscaleAI score:** JanusGraph

| Attribute | JanusGraph | Virtuoso |
|---|---|---|
| **vioscaleAI score** | 54.1 (67% (medium)) | 36.7 (77% (high)) |
| activity.commits_last_30d | 97 | 9 |
| adoption.dependent_repos | 250 | 1 |
| adoption.github_stars | 5,855 | 975 |
| adoption.package_downloads_weekly | - | 22 |
| content.faq | `[{"answer":"A database system that stores and queries extremely large graphs spread across multiple machines, enabling many users to run complex lookups simultaneously with strong transaction guarantees and support for batch analytics. It is indexed under Graph Databases.","source":"https://janusgraph.org","question":"What is JanusGraph?","confidence":0.6},{"answer":"JanusGraph is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://janusgraph.org","question":"Is JanusGraph free to use?","confidence":0.6},{"answer":"JanusGraph supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://janusgraph.org","question":"What platforms does JanusGraph support?","confidence":0.6},{"answer":"Yes. JanusGraph can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://janusgraph.org","question":"Can JanusGraph be self-hosted?","confidence":0.6},{"answer":"We have confirmed 14 integrations for JanusGraph, including Apache Cassandra, Apache HBase, Google Cloud Bigtable, Oracle BerkeleyDB, ScyllaDB, Elasticsearch, Apache Solr and Apache Lucene, plus 6 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://janusgraph.org","question":"What does JanusGraph integrate with?","confidence":0.6}]` | `[{"answer":"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.","source":"https://virtuoso.openlinksw.com/pricing/","question":"What is Virtuoso?","confidence":0.6},{"answer":"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.","source":"https://virtuoso.openlinksw.com/pricing/","question":"How much does Virtuoso cost?","confidence":0.6},{"answer":"Virtuoso supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://virtuoso.openlinksw.com/pricing/","question":"What platforms does Virtuoso support?","confidence":0.6},{"answer":"Yes. Virtuoso can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://virtuoso.openlinksw.com/pricing/","question":"Can Virtuoso be self-hosted?","confidence":0.6},{"answer":"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.","source":"https://virtuoso.openlinksw.com/pricing/","question":"What does Virtuoso integrate with?","confidence":0.6},{"answer":"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.","source":"https://pypi.org/pypi/virtuoso/json","question":"Is Virtuoso open source?","confidence":0.9},{"answer":"Virtuoso is available worldwide. Its primary market is the United States.","source":"https://virtuoso.openlinksw.com/pricing/","question":"Where is Virtuoso available?","confidence":0.5}]` |
| deployment.options | `{"self_hosted":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | A database system that stores and queries extremely large graphs spread across multiple machines, enabling many users to run complex lookups simultaneously with strong transaction guarantees and support for batch analytics. | 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. |
| features.capabilities | `{"storage":"pluggable","workload":"both","deployment":"self_hosted","consistency":"tunable","distributed":"sharded","graph_model":"property_graph","licence_class":"permissive","query_language":"Gremlin","replication_ha":true,"full_text_search":"via_index","standard_support":true,"acid_transactions":"full"}` | `{"workload":"both","deployment":"self_hosted","graph_model":"rdf_triple","licence_class":"source_available","query_language":"SPARQL","replication_ha":true,"standard_support":true}` |
| integrations.count | 10 | 6 |
| integrations.list | `[{"name":"Apache Cassandra"},{"name":"Apache HBase"},{"name":"Google Cloud Bigtable"},{"name":"Oracle BerkeleyDB"},{"name":"ScyllaDB"},{"name":"Elasticsearch"},{"name":"Apache Solr"},{"name":"Apache Lucene"},{"name":"Apache Spark"},{"name":"Aerospike"},{"name":"DynamoDB"},{"name":"FoundationDB"},{"name":"Gremlin"},{"name":"Apache TinkerPop"},{"name":"Arcade Analytics"},{"name":"Graphexp"},{"name":"Graph Explorer"},{"name":"Graphlytic"},{"name":"ReGraph"},{"name":"Cassandra","native":true,"category":"storage"},{"name":"HBase","native":true,"category":"storage"},{"name":"Bigtable","native":true,"category":"storage"},{"name":"Amazon Managed KeySpace","native":true,"category":"storage"},{"name":"Solr","native":true,"category":"indexing"},{"name":"Lucene","native":true,"category":"indexing"}]` | `[{"name":"SQLAlchemy"},{"name":"RDFLib"},{"name":"SQL databases"},{"name":"NoSQL databases"},{"name":"Linked Data sources"},{"name":"APIs"}]` |
| language.primary | Java | C |
| license.spdx | - | BSD |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","summary":"Fully open source under Apache 2 license. No commercial licensing required.","freeTier":true,"sourceUrl":"https://janusgraph.org","retrievedAt":"2026-08-14T21:32:49.930Z"}` | `{"type":"hybrid","plans":[{"free":false,"name":"Personal","summary":"$99.99/year","features":["2 Concurrent Sessions","CPU Core Affinity","Linux, Windows, macOS","Workstation"],"commitment":"annual","components":[{"kind":"fixed","amount":99.99,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Developer","summary":"$199/year","features":["5 Concurrent Sessions","Application Development License"],"commitment":"annual","components":[{"kind":"fixed","amount":199,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Project","summary":"$499/year","features":["16 Concurrent Sessions","Unlimited CPU Cores","Server-Grade Operating Systems","Enterprise Support"],"commitment":"annual","components":[{"kind":"fixed","amount":499,"period":"year","currency":"USD"}],"contactSales":false}],"summary":"From $99.99/year for workstation licenses. Free open-source edition available under GPL. Perpetual enterprise licenses available on request.","currency":"USD","freeTier":true,"sourceUrl":"https://virtuoso.openlinksw.com/pricing","retrievedAt":"2026-10-13T15:16:38.643Z","startingPrice":{"amount":99.99,"period":"year","currency":"USD"},"billingPeriods":["year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | high |
| pricing.starting_price | - | `{"amount":99.99,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 74 | 143 |
| release.history | `[{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.1.0","date":"2024-11-09T01:29:58Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.1","date":"2024-11-08T21:41:28Z","type":"stable","version":"v1.0.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0","date":"2023-10-22T02:40:57Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.4","date":"2023-10-09T05:14:24Z","type":"stable","version":"v0.6.4"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0-rc2","date":"2023-02-26T14:20:07Z","type":"prerelease","version":"v1.0.0-rc2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.3","date":"2023-02-20T22:06:55Z","type":"stable","version":"v0.6.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0-rc1","date":"2022-12-08T09:15:08Z","type":"prerelease","version":"v1.0.0-rc1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.2","date":"2022-05-31T09:35:37Z","type":"stable","version":"v0.6.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.1","date":"2022-01-19T12:51:43Z","type":"stable","version":"v0.6.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.0","date":"2021-09-03T12:33:53Z","type":"stable","version":"v0.6.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.3","date":"2020-12-25T12:09:56Z","type":"stable","version":"v0.5.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.2","date":"2020-05-06T00:49:42Z","type":"stable","version":"v0.5.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.1","date":"2020-04-04T17:21:58Z","type":"stable","version":"v0.5.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.0","date":"2020-03-12T05:40:36Z","type":"stable","version":"v0.5.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.4.1","date":"2020-01-15T16:40:54Z","type":"stable","version":"v0.4.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.3.3","date":"2020-01-14T17:40:44Z","type":"stable","version":"v0.3.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.4.0","date":"2019-07-02T19:27:38Z","type":"stable","version":"v0.4.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.3.2","date":"2019-06-17T14:29:03Z","type":"stable","version":"v0.3.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.2.3","date":"2019-05-22T01:26:16Z","type":"stable","version":"v0.2.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.2.2","date":"2018-10-09T18:04:43Z","type":"stable","version":"v0.2.2"}]` | `[{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.17","date":"2026-05-07T16:19:38Z","type":"stable","version":"v7.2.17"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.16.1","date":"2025-10-15T19:19:08Z","type":"stable","version":"v7.2.16.1"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.16","date":"2025-10-14T16:23:00Z","type":"stable","version":"v7.2.16"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.15","date":"2025-05-21T14:32:44Z","type":"stable","version":"v7.2.15"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.14","date":"2024-11-11T16:10:53Z","type":"stable","version":"v7.2.14"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.13","date":"2024-06-12T08:08:55Z","type":"stable","version":"v7.2.13"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.12","date":"2024-02-13T17:03:29Z","type":"stable","version":"v7.2.12"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.11","date":"2023-09-26T16:53:27Z","type":"stable","version":"v7.2.11"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.10","date":"2023-06-07T14:13:02Z","type":"stable","version":"v7.2.10"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.9","date":"2023-02-28T09:52:41Z","type":"stable","version":"v7.2.9"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.8","date":"2022-10-19T13:39:51Z","type":"stable","version":"v7.2.8"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.7","date":"2022-05-18T15:53:34Z","type":"stable","version":"v7.2.7"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.6.1","date":"2021-06-22T17:26:01Z","type":"stable","version":"v7.2.6.1"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.5.1","date":"2018-08-15T18:41:17Z","type":"stable","version":"v7.2.5.1"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.5","date":"2018-08-16T11:00:56Z","type":"stable","version":"v7.2.5"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.4.2","date":"2016-04-25T16:40:01Z","type":"stable","version":"v7.2.4.2"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.2.1","date":"2015-12-09T21:59:50Z","type":"stable","version":"v7.2.2.1"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.1","date":"2015-06-24T19:38:34Z","type":"stable","version":"v7.2.1"},{"url":"https://github.com/openlink/virtuoso-opensource/releases/tag/v7.2.0.1","date":"2015-02-17T14:35:22Z","type":"stable","version":"v7.2.0.1"}]` |
| reliability.status_page | yes | yes |
| security.scorecard | 6.4 | 2.7 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.janusgraph%3Ajanusgraph-core&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.openlinksw%3Avirtjdbc4&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Graph Databases)

| Capability | JanusGraph | Virtuoso |
|---|:--:|:--:|
| **Model** |  |  |
| Graph model | Property graph | RDF / triple |
| Query language(s) | Gremlin | SPARQL |
| **Transactions** |  |  |
| ACID transactions | Full | - |
| Consistency model | Tunable | - |
| **Architecture** |  |  |
| Storage | Pluggable backend | - |
| Distributed / scale | Sharded | - |
| Replication / HA | ✓ | ✓ |
| OLTP vs OLAP | Both | Both |
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| **Search** |  |  |
| Full-text search | Via index | - |
| Built-in vector search | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Source-available |
| **Portability** |  |  |
| openCypher / TinkerPop standard | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T22:12:16.395Z. "-" = undocumented, not absent.*