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English | <a href="README-CN.md">中文</a>

A distributed, scalable, lightning-fast graph database

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NebulaGraph

Introduction

NebulaGraph is a popular open-source graph database that can handle large volumes of data with milliseconds of latency, scale up quickly, and have the ability to perform fast graph analytics. NebulaGraph has been widely used for social media, recommendation systems, knowledge graphs, security, capital flows, AI, etc. See our users.

The following lists some of NebulaGraph features:

• Symmetrically distributed
• Storage and computing separation
• Horizontal scalability
• Strong data consistency by RAFT protocol
• OpenCypher-compatible query language
• Role-based access control for higher-level security
• Different types of graph analytics algorithms

The following figure shows the architecture of the NebulaGraph core.

Learn more on NebulaGraph website.

<!-- ## Notice of Release NebulaGraph used to be split into three repositories: [Nebula-Graph](https://github.com/vesoft-inc/nebula-graph), [Nebula-Storage,](https://github.com/vesoft-inc/nebula-storage) and [Nebula-Common](https://github.com/vesoft-inc/nebula-common) for versions between v2.0.0 and v2.5.x, which will be archived. The one and only codebase of NebulaGraph is now [github.com/vesoft-inc/nebula](https://github.com/vesoft-inc/nebula), as it's back to mono-repo since v2.6.0. Please check the latest release via the documentation: https://docs.nebula-graph.io/. NebulaGraph 1.x is not actively maintained. Please move to NebulaGraph 2.x. The data format, rpc protocols, clients, etc. are not compatible between NebulaGraph v1.x and v2.x, but we do offer [upgrade guide](https://docs.nebula-graph.io/2.5.0/4.deployment-and-installation/3.upgrade-nebula-graph/upgrade-nebula-graph-to-250/). To use the stable release, see [NebulaGraph 1.0](https://github.com/vesoft-inc/nebula). ## Roadmap See our [Roadmap](https://github.com/vesoft-inc/nebula/wiki/Nebula-Graph-Roadmap-2020) for what's coming soon in **NebulaGraph**. -->

Quick start

Read the getting started docs for a quick start.

Using NebulaGraph

NebulaGraph is a distributed graph database with multiple components. You can download or try in following ways:

• Build from source

• In the cloud: AWS

Getting help

In case you encounter any problems playing around NebulaGraph, please reach out for help:

• FAQ
• Discussions
• Documentation

DevTools

NebulaGraph comes with a set of tools to help you manage and monitor your graph database. See Ecosystem.

Contributing

Contributions are warmly welcomed and greatly appreciated. And here are a few ways you can contribute:

• Start by some issues
• Submit Pull Requests to us. See how-to-contribute.

Landscape

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NebulaGraph enriches the CNCF Database Landscape.

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Licensing

NebulaGraph is under Apache 2.0 license, so you can freely download, modify, and deploy the source code to meet your needs.

You can also freely deploy NebulaGraph as a back-end service to support your SaaS deployment.

Contact

• Community Chat
• Slack Channel
• Stack Overflow
• X(Twitter): @NebulaGraph
• LinkedIn Page
• Email: [email protected]

Community

Join NebulaGraph Community	Where to Find us
Asking Questions
Chat with Community Members
NebulaGraph Meetup
Chat, Asking, or Meeting in Chinese

If you find NebulaGraph interesting, please ⭐️ Star it at the top of the GitHub page.