Better data management starts here.
And we're open source.

Quickly build, manage, and leverage Knowledge Graphs using our web application, Python framework, and web services.

What is Blue Brain Nexus?

Blue Brain Nexus is an ecosystem that allows you to organize and better leverage your data through the use of a Knowledge Graph. In addition to the products listed here, you’ll find a rich ecosystem of libraries and tools.

Nexus Fusion

Enabling Collaborative Data and Knowledge Discovery

Fusion is our extensible web application. It hosts different apps to accommodate various use cases. It comes by default with Studios (where you work with data), Admin (for managing the Nexus instance), and will soon support Workflows to organise your data activities. It runs on top of the Delta web services, and integrates neatly with our Forge Python framework.

Nexus Forge

Building and Using Knowledge Graphs Made Easy

Knowledge Graphs are often built from heterogeneous data and knowledge (i.e. data models such as ontologies, schemas) coming from different sources and often with different formats (i.e. structured, unstructured). Nexus Forge enables data scientists, data and knowledge engineers to address these challenges by uniquely combining under a consistent and generic Python Framework all necessary components to build and search a Knowledge Graph.

Nexus Delta

Managing the Data and Knowledge Graph Lifecycle

A scalable and secure service to store and leverage all your data, neatly organised in a Knowledge Graph. It offers an API to perform all your data management operations, this way it can easily integrate with your software stack. Its advanced indexing capabilities automatically build views from your metadata.


We are open-source.
Check our repositories, report issues, and start contributing!

Why Blue Brain Nexus?

Nexus was born out of a need for better data management in the simulation neuroscience field, but built to cover any other use case. The data management needs of scientists is something that we value and aim to make as easy as possible.



Originally developed to handle data across all levels and scales of the brain, together with scientists and domain experts. Designed for any research applications.

Secure, Scalable, and Production-Ready

Secure, Scalable, and Production-Ready

A large organization needs a reliable data platform. That’s why we developed Nexus as an enterprise-grade system.

Rich Ecosystem

Rich Ecosystem

By being open-source, our users can access the full suite of libraries, packages, and products that support our ecosystem. In addition to our core products, check out our Javascript libraries, Python SDK, and CLI.



Evolve your data continuously by adopting the same technologies and standards that support the world wide web.

Make Data Computable

Make Data Computable

Nexus makes it possible to work with data at scale. Instantiate real computable objects directly from your data, to power your research and apps.



Develop your own visualization plugins, data mappers, and use server sent events to create your own integrations.

Get Started

From playing with our sandbox web interface, exploring Python notebooks, or reading more about technical aspects in the docs, you’re covered. You can also visit our code base on Github or contact us directly.

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