Your open-source toolkit for medical imaging!

About Us

Kaapana (from the hawaiian word kaʻāpana, meaning “distributor” or “part”) is an open source toolkit for state of the art platform provisioning in the field of medical data analysis. The applications comprise AI-based workflows and federated learning scenarios with a focus on radiological and radiotherapeutic imaging. Obtaining large amounts of medical data necessary for developing and training modern machine learning methods is an extremely challenging effort that often fails in a multi-center setting, e.g. due to technical, organizational and legal hurdles. A federated approach where the data remains under the authority of the individual institutions and is only processed on-site is, in contrast, a promising approach ideally suited to overcome these difficulties.

The Federated Concept

Following this federated concept, the goal of Kaapana is to provide a framework and a set of tools for sharing data processing algorithms, for standardized workflow design and execution as well as for performing distributed method development. This will facilitate data analysis in a compliant way enabling researchers and clinicians to perform large-scale multi-center studies.

Open Source Technologies

By adhering to established standards and by adopting widely used open technologies for private cloud development and containerized data processing, Kaapana integrates seamlessly with the existing clinical IT infrastructure, such as the Picture Archiving and Communication System (PACS), and ensures modularity and easy extensibility.

We too are standing on the shoulders of giants

Our Tech Stack amongst others builds on:

Kaapana Powered Projects

What We Do?

and we're proud

We have put together the best of our experience and the best of our talents to push Kaapana and, together with our partners, realize great projects. There are more great things to come - see some of current projects here:



Not only creativity

Our AI Modules

Tools And Workflows That Trigger Medical Image Computing
  • nnU-Net

    nnU-Net is an open-source tool that can effectively be used out-of-the-box, rendering state of the art segmentation and catalyzing scientific progress as a framework for automated method design. It provides an end-to-end automated pipeline, which can be trained and inferred on any medical dataset for segmentation.


  • Medical Imaging Interaction Toolkit

    The Medical Imaging Interaction Toolkit (MITK) is a free open-source software for the development of interactive medical image processing software. Based on MITK, we provide the MITK Workbench, a powerful and free application to view, process, and segment medical images.


Who are we anyway?

Our Team

Medical Image Computing @ DKFZ

We are a team of reseachers, students and software developers who very much enjoy solving tricky problems in the field of medical imaging. Reach out and get to know us!

Jonas Scherer

Jonas Scherer

Klaus Kades

Klaus Kades

Hanno Gao

Hanno Gao

Philipp Schader

Philipp Schader

Santhosh Parampottupadam

Santhosh Parampottupadam

Kaushal Parekh

Kaushal Parekh

Ünal Akünal

Ünal Akünal

Markus Bujotzek

Markus Bujotzek

Stefan Denner

Stefan Denner

Lorenz Feineis

Lorenz Feineis

Jonas Reinwald

Jonas Reinwald

Lisa Kausch

Lisa Kausch

Benjamin Hamm

Benjamin Hamm

Maximilian Fischer

Maximilian Fischer

Ralf Floca

Ralf Floca

Marco Nolden

Marco Nolden

Klaus Maier-Hein

Klaus Maier-Hein

Question not answered yet? We are here to help!

Check out our channels and get connected

And now

Contact us

reach out

German Cancer Research Center, Im Neunheimer Feld 280, 69120 Heidelberg, Germany

Do you have any idea in mind? Drop us a message!