The CellML project

The CellML language is an open standard based on the XML markup language. CellML is being developed by the Auckland Bioengineering Institute at the University of Auckland and affiliated research groups.

The purpose of CellML is to store and exchange computer-based mathematical models. CellML allows scientists to share models even if they are using different modelling tools. It also enables them to reuse components from one model in another, thus accelerating model development. Read more...

About CellML

Find out about the CellML language; what it can be used for, its history, and future directions.

Getting started

New to CellML? This section collates information about CellML and tutorials that will help get you up and running with CellML.

Tools and API

The CellML community is committed to providing freely available tools for creating, editing, and using CellML models.

Model repository

The model repository is a resource where modellers can collaborate with each other to build and share models with the rest of the world.


Read the CellML specifications - core language and a variety of metadata specifications are available.


CellML is built around open source science and software. The website is a community hub for all things CellML.

2023 International CellML Workshop

June 6

Waiheke Island Resort

The 16th International CellML Workshop was held at the Waiheke Island Resort, Waiheke Island, Auckland, New Zealand.


HARMONY is a hackathon-type meeting, with a focus on development of the standards, interoperability and infrastructure. The HARMONY 2022 meeting was a hybrid in-person meeting in Washington DC and online event held April 26-30.


COMBINE 2021 was an online (virtual) meeting from October 11 to 15.

Funding agencies

Thanks to our funding partners: VPH NoE, aneurIST, euHeart, Foundation for Research, Science and Technology, Maurice Wilkins Centre for Molecular Biodiscovery, New Zealand Institute of Mathematics and its Applications, Wellcome Trust.