# JanusGraph vs Virtuoso

**Leader by Vioscale score:** JanusGraph

| Attribute | JanusGraph | Virtuoso |
|---|---|---|
| **Vioscale score** | 52.7 (70% (medium)) | 34.5 (62% (medium)) |
| activity.commits_last_30d | 9 | 16 |
| adoption.dependent_repos | 250 | 1 |
| adoption.github_stars | 5,829 | 973 |
| adoption.package_downloads_weekly | - | 22 |
| deployment.options | `{"on_prem":true,"self_hosted":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. | 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. |
| 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","query_language":"SPARQL"}` |
| integrations.count | 14 | 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":"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}` | `{"cli":true,"mac":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":"perpetual","plans":[{"free":false,"name":"Personal","summary":"$99.99 one-time","components":[{"kind":"one_time","amount":99.99,"currency":"USD"}],"description":"Individual workstation license for single-user development","contactSales":false,"includedLimits":{"cores":"2","users":"1"}},{"free":false,"name":"Developer","summary":"$199 one-time","components":[{"kind":"one_time","amount":199,"currency":"USD"}],"description":"Development workstation license for small teams","contactSales":false,"includedLimits":{"cores":"8","users":"5"}},{"free":false,"name":"Project","summary":"$499 one-time","components":[{"kind":"one_time","amount":499,"currency":"USD"}],"description":"Project-focused workstation license with expanded resources","contactSales":false,"includedLimits":{"cores":"16","users":"5"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, contact sales","features":["Unlimited Concurrent Sessions","Unlimited CPU Cores","Server-Grade Operating Systems","Enterprise Support","Custom Licensing Terms"],"description":"Custom license for production server deployment","contactSales":true}],"summary":"From $99.99 perpetual license, Enterprise custom pricing","currency":"USD","freeTier":false,"sourceUrl":"https://virtuoso.openlinksw.com/pricing/","retrievedAt":"2026-08-14T08:36:04.886Z","startingPrice":{"amount":99.99,"period":"month","currency":"USD"}}` |
| pricing.free_tier | yes | no |
| pricing.model | commercial | commercial |
| pricing.price_level | free | high |
| 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 | 6.5 | 2.6 |
| 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 | - |
| **Portability** |  |  |
| openCypher / TinkerPop standard | ✓ | - |

*Source: Vioscale. Generated 2026-09-01T16:48:17.112Z. "-" = undocumented, not absent.*