# JanusGraph vs NebulaGraph

**Leader by vioscaleAI score:** JanusGraph

| Attribute | JanusGraph | NebulaGraph |
|---|---|---|
| **vioscaleAI score** | 54.1 (67% (medium)) | 40.8 (67% (medium)) |
| activity.commits_last_30d | 97 | 2 |
| adoption.dependent_repos | 250 | 5 |
| adoption.github_stars | 5,855 | 12,433 |
| 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":"NebulaGraph is a distributed graph database built for processing complex relationship data with millisecond latency. It enables fraud detection, recommendations, knowledge graphs, and real-time analytics across large interconnected datasets for enterprises. It is indexed under Graph Databases.","source":"https://nebula-graph.io/pricing","question":"What is NebulaGraph?","confidence":0.6},{"answer":"NebulaGraph is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. A commercial or hosted edition starts at $0.35. Pricing changes often, so verify at source before relying on it.","source":"https://nebula-graph.io/pricing","question":"Is NebulaGraph free to use?","confidence":0.6},{"answer":"NebulaGraph supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://nebula-graph.io/pricing","question":"What platforms does NebulaGraph support?","confidence":0.6},{"answer":"Yes. NebulaGraph can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://nebula-graph.io/pricing","question":"Can NebulaGraph be self-hosted?","confidence":0.6},{"answer":"We have confirmed 7 integrations for NebulaGraph, including Azure Marketplace, AWS (planned), Google Cloud Platform (planned), Nebula Studio, Nebula Explorer, Nebula Dashboard and ElasticSearch. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://nebula-graph.io/pricing","question":"What does NebulaGraph integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for NebulaGraph. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as NebulaGraph not holding them. Always confirm compliance directly before you rely on it.","source":"https://nebula-graph.io/posts/bridging-compliance-and-security-graph-technology-for-stablecoin-transaction-monitoring","question":"What security certifications does NebulaGraph have?","confidence":0.7},{"answer":"Yes. NebulaGraph is published under the Apache-2.0 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://github.com/vesoft-inc/nebula","question":"Is NebulaGraph open source?","confidence":0.95},{"answer":"NebulaGraph is available worldwide. Its primary market is the United States. The vendor is headquartered in the United States.","source":"https://nebula-graph.io/pricing","question":"Where is NebulaGraph available?","confidence":0.75}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":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. | An open-source, distributed graph database system designed to query large relationship networks with millisecond latency while supporting complex graph analytics and high availability across multiple nodes. |
| 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"}` | `{"storage":"pluggable","workload":"both","deployment":"self_hosted","consistency":"strong","distributed":"sharded","graph_model":"property_graph","licence_class":"permissive","vector_search":true,"query_language":"nGQL, OpenCypher, ISO-GQL","replication_ha":true,"full_text_search":"built_in","standard_support":true,"acid_transactions":"full"}` |
| integrations.count | 10 | 7 |
| 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":"Azure Marketplace"},{"name":"AWS (planned)"},{"name":"Google Cloud Platform (planned)"},{"name":"Nebula Studio"},{"name":"Nebula Explorer"},{"name":"Nebula Dashboard"},{"name":"ElasticSearch"},{"name":"HDFS","native":true}]` |
| language.primary | Java | C++ |
| license.spdx | - | Apache-2.0 |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true,"linux":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":true,"name":"Open-source Edition","summary":"Free, open-source","features":["Subset of core features","Graph query language support (nGQL/openCypher, ISO-GQL)","Graph algorithms and analytics","Community support"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Community-supported graph database for developers and experimental use cases","contactSales":false},{"free":false,"name":"Enterprise Edition","features":["Enhanced performance","Enterprise-grade stability and security","Premium support service","Multiple deployment methods","Advanced features: REST API, vector search, multi-graph queries, plugin management","Fine-grained permission management at multiple levels","SAML 2.0 and OIDC authentication","Audit logging and compliance tools"],"description":"Production-grade deployment with enterprise performance, security, and dedicated support","contactSales":true},{"free":false,"name":"NebulaGraph Cloud","summary":"From $0.35/hour (beta pricing with 70% discount); 14-day free trial","features":["One-click deployment and scaling","High availability with multi-data center replication","Automatic backup and restoration","Integrated visualization tools (Nebula Studio, Explorer, Dashboard)","Fine-grained access control"],"components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.35,"currency":"USD"}],"description":"Managed cloud database service with pay-as-you-go consumption pricing","contactSales":false}],"summary":"Free open-source edition; enterprise licensing and managed cloud options available","currency":"USD","freeTier":true,"sourceUrl":"https://nebula-graph.io/pricing","retrievedAt":"2026-08-14T16:42:25.955Z","freeTrialDays":14,"startingPrice":{"amount":0.35,"period":"month","currency":"USD"},"billingPeriods":["month","hour"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | no |
| release.cadence_days | 74 | 74 |
| 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/vesoft-inc/nebula/releases/tag/v3.8.0","date":"2024-05-17T10:33:59Z","type":"stable","version":"v3.8.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.6.0","date":"2023-08-11T03:55:34Z","type":"stable","version":"v3.6.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.5.0","date":"2023-05-23T10:06:24Z","type":"stable","version":"v3.5.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.4.1","date":"2023-03-08T03:14:19Z","type":"stable","version":"v3.4.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.4.0","date":"2023-02-09T10:19:49Z","type":"stable","version":"v3.4.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.3.0","date":"2022-10-31T06:06:15Z","type":"stable","version":"v3.3.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.2.1","date":"2022-09-16T02:52:30Z","type":"stable","version":"v3.2.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.2.0","date":"2022-07-18T02:31:18Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.1.0","date":"2022-04-24T09:53:58Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.0.2","date":"2022-03-29T02:15:07Z","type":"stable","version":"v3.0.2"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.0.1","date":"2022-03-15T04:17:00Z","type":"stable","version":"v3.0.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v3.0.0","date":"2022-02-16T02:11:49Z","type":"stable","version":"v3.0.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v2.6.2","date":"2022-01-26T02:14:57Z","type":"stable","version":"v2.6.2"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v2.6.1","date":"2021-11-03T11:04:45Z","type":"stable","version":"v2.6.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v2.6.0","date":"2021-10-25T11:06:57Z","type":"stable","version":"v2.6.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v1.2.1","date":"2021-04-15T02:49:45Z","type":"stable","version":"v1.2.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v1.2.0","date":"2020-12-08T03:19:25Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v1.1.0","date":"2020-09-21T04:29:17Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v1.0.1","date":"2020-07-09T03:34:01Z","type":"stable","version":"v1.0.1"},{"url":"https://github.com/vesoft-inc/nebula/releases/tag/v1.0.0","date":"2020-06-10T07:28:42Z","type":"stable","version":"v1.0.0"}]` |
| reliability.sla_pct | - | 99.999 |
| reliability.status_page | yes | - |
| security.gdpr | - | yes |
| security.scorecard | 6.4 | 5.7 |
| security.trust_center | - | https://nebula-graph.io/posts/bridging-compliance-and-security-graph-technology-for-stablecoin-transaction-monitoring |
| 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.vesoft%3Anebula-spark-connector&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Graph Databases)

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

*Source: vioscaleAI. Generated 2026-10-16T19:18:23.325Z. "-" = undocumented, not absent.*