JanusGraph/janusgraph

JanusGraph: an open-source, distributed graph database

Java

5,856

7,214 commits

updated Oct 12, 2026

See the code

README

JanusGraph logo

JanusGraph is a highly scalable graph database optimized for storing and querying large graphs with billions of vertices and edges distributed across a multi-machine cluster. JanusGraph is a transactional database that can support thousands of concurrent users, complex traversals, and analytic graph queries.

Downloads Docker pulls Maven Javadoc GitHub Workflow Status Codecov Mentioned in Awesome Bigtable CII Best Practices Codacy Badge DOI

Learn More

The project homepage contains more information on JanusGraph and provides links to documentation, getting-started guides and release downloads.

Visualization

JanusGraph has a web-based graph visualizer located in janusgraph-visualizer repository.

In additional to the web-based graph visualizer, JanusGraph supports a range of third party graph visualizers listed below:

Community

  • GitHub Discussions: see GitHub Discussions for all general discussions and questions about JanusGraph

  • Discord for interactive discussions and questions about JanusGraph: Join the server

  • Stack Overflow: see the janusgraph tag

  • Twitter: follow @JanusGraph for news and updates

  • LinkedIn: follow JanusGraph for news and updates

  • Mailing lists:

    • janusgraph-users (at) lists.lfaidata.foundation (archives) for questions about using JanusGraph, installation, configuration, integrations

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-users+subscribe (at) lists.lfaidata.foundation
      • janusgraph-users+unsubscribe (at) lists.lfaidata.foundation
    • janusgraph-dev (at) lists.lfaidata.foundation (archives) for internal implementation of JanusGraph itself

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-dev+subscribe (at) lists.lfaidata.foundation
      • janusgraph-dev+unsubscribe (at) lists.lfaidata.foundation
    • janusgraph-announce (at) lists.lfaidata.foundation (archives) for new releases and news announcements

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-announce+subscribe (at) lists.lfaidata.foundation
      • janusgraph-announce+unsubscribe (at) lists.lfaidata.foundation

Contributing

Please see CONTRIBUTING.md for more information, including CLAs and best practices for working with GitHub.

Powered by JanusGraph

  • Windup by RedHat - application migration and assessment tool (website)

Users

The following users have deployed JanusGraph in production.

Cite

If you use JanusGraph in your research, please cite it using this metadata:

@software{janusgraph_2024,
    title = {JanusGraph: an open-source, distributed graph database},
    author = {{JanusGraph Contributors}},
    year = {2024},
    version = {1.1.0},
    publisher = {Zenodo},
    doi = {10.5281/zenodo.14807604}
}
bigtable
cassandra
elasticsearch
graph
graph-database
graphdb
gremlin
hbase
solr
tinkerpop

JanusGraph/janusgraph

JanusGraph: an open-source, distributed graph database

Java

5,856

7,214 commits

updated Oct 12, 2026

See the code

README

JanusGraph logo

JanusGraph is a highly scalable graph database optimized for storing and querying large graphs with billions of vertices and edges distributed across a multi-machine cluster. JanusGraph is a transactional database that can support thousands of concurrent users, complex traversals, and analytic graph queries.

Downloads Docker pulls Maven Javadoc GitHub Workflow Status Codecov Mentioned in Awesome Bigtable CII Best Practices Codacy Badge DOI

Learn More

The project homepage contains more information on JanusGraph and provides links to documentation, getting-started guides and release downloads.

Visualization

JanusGraph has a web-based graph visualizer located in janusgraph-visualizer repository.

In additional to the web-based graph visualizer, JanusGraph supports a range of third party graph visualizers listed below:

Community

  • GitHub Discussions: see GitHub Discussions for all general discussions and questions about JanusGraph

  • Discord for interactive discussions and questions about JanusGraph: Join the server

  • Stack Overflow: see the janusgraph tag

  • Twitter: follow @JanusGraph for news and updates

  • LinkedIn: follow JanusGraph for news and updates

  • Mailing lists:

    • janusgraph-users (at) lists.lfaidata.foundation (archives) for questions about using JanusGraph, installation, configuration, integrations

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-users+subscribe (at) lists.lfaidata.foundation
      • janusgraph-users+unsubscribe (at) lists.lfaidata.foundation
    • janusgraph-dev (at) lists.lfaidata.foundation (archives) for internal implementation of JanusGraph itself

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-dev+subscribe (at) lists.lfaidata.foundation
      • janusgraph-dev+unsubscribe (at) lists.lfaidata.foundation
    • janusgraph-announce (at) lists.lfaidata.foundation (archives) for new releases and news announcements

      To join with a LF AI & Data account, use the web UI; to subscribe/unsubscribe with an arbitrary email address, send an email to:

      • janusgraph-announce+subscribe (at) lists.lfaidata.foundation
      • janusgraph-announce+unsubscribe (at) lists.lfaidata.foundation

Contributing

Please see CONTRIBUTING.md for more information, including CLAs and best practices for working with GitHub.

Powered by JanusGraph

  • Windup by RedHat - application migration and assessment tool (website)

Users

The following users have deployed JanusGraph in production.

Cite

If you use JanusGraph in your research, please cite it using this metadata:

@software{janusgraph_2024,
    title = {JanusGraph: an open-source, distributed graph database},
    author = {{JanusGraph Contributors}},
    year = {2024},
    version = {1.1.0},
    publisher = {Zenodo},
    doi = {10.5281/zenodo.14807604}
}
bigtable
cassandra
elasticsearch
graph
graph-database
graphdb
gremlin
hbase
solr
tinkerpop

Project health

Overall

6.2/10

Maintained

10/10

Code review

1/10
OpenSSF Scorecard

Significant stargazers

(top 24 of 53)

Chris Aniszczyk

827 followers · starred Dec 2019

Daniel Dunbar

787 followers · starred May 2017

Pekka Enberg

2,027 followers · starred Jan 2017

Cookie Engineer

608 followers · starred Jun 2018