All new documentation will be done via our readthedocs site, though some old documentation has yet to be moved from our wiki (also there is the neo4j-core wiki)

Code Quality Rank: L4
Monthly Downloads: 17,407
Programming language: Ruby
License: MIT License
Tags: ORM/ODM    
Latest version: v11.0.0

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Welcome to Active Graph (f.k.a. Neo4j.rb)

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All new documentation will be done via our readthedocs site, though some old documentation has yet to be moved from our wiki

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Neo4j.rb is an Active Model compliant Ruby/JRuby wrapper for the Neo4j graph database. It uses the neo4j-ruby-driver and active_attr gems.

Neo4j is a transactional, open-source graph database. A graph database manages data in a connected data structure, capable of representing any kind of data in a very accessible way. Information is stored in nodes and relationships connecting them, both of which can have arbitrary properties. To learn more visit What is a Graph Database?

With this gem you not only do you get a convenient higher level wrapper around Neo4j, but you have access to a powerful high-level query building interface which lets you take advantage of the power of Neo4j like this:

# Break down the top countries where friends' favorite beers come from
  order('count(country) DESC').
  pluck(:country, count: 'count(country)')

It can be installed in your Gemfile with a simple gem 'neo4j'

For a general overview see our website: http://neo4jrb.io/

Winner of a 2014 Graphie for "Best Community Contribution" at Neo4j's Graph Connect conference! 2014 Graphie

Neo4j.rb v4.1.0 was released in January of 2015. Its changes are outlined here and in the announcement message. It will take a little time before all documentation is updated to reflect the new release but unless otherwise noted, all 3.X documentation is totally valid for v4.

Neo4j version support

Neo4j Version v2.x v3.x >= v4.x >= 7.0.3 activegraph 10 activegraph 11 (jRuby only)
1.9.x Yes No No No No No
2.0.x No Yes No No No No
2.1.x No Yes Yes * Yes No No
2.2.x No No Yes Yes No No
2.3.x No No Yes Yes No No
3.0, 3.1, 3.3 No No No Yes No No
3.4 No No No Yes Yes No
3.5 No No No Yes Yes Yes
4.0 No No No No Yes Yes
4.1 No No No No No Yes
4.2 No No No No No Yes
4.3 No No No No No Yes

* Neo4j.rb >= 4.x doesn't support Neo4j versions before 2.1.5. To use 2.1.x you should upgrade to a version >= 2.1.5

Neo4j feature support

Neo4j Feature v2.x v3.x >= v4.x >= 8.x >= activegraph 10.0
Bolt Protocol No No No Yes Yes
Auth No No Yes Yes Yes
Remote Cypher Yes Yes Yes Yes No
Transactions Yes Yes Yes Yes Yes
High Availability No Yes Yes Yes Yes
Causal Cluster No No No No Yes
Embedded JVM support Yes Yes Yes Yes via bolt only


  • Website (for an introduction)
  • readthedocs
  • Note: Our GitHub Wiki pages have outdated information. We are in the process of moving all documentation to readthedocs

Legacy (<= 2.x) Documentation


Original Author

Previous Maintainers

Current Maintainers


Always welcome! Please review the [guidelines for contributing](CONTRIBUTING.md) to this repository.


Notice: There are different licenses for the neo4j-community, neo4j-advanced, and neo4j-enterprise jar gems. Only the neo4j-community gem is required by default.

*Note that all licence references and agreements mentioned in the Neo4j.rb README section above are relevant to that project's source code only.