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Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface.



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KRATOS Multiphysics ("Kratos") is a framework for building parallel, multi-disciplinary simulation software, aiming at modularity, extensibility, and high performance. Kratos is written in C++, and counts with an extensive Python interface. More in Overview

Kratos is free under BSD-4 license and can be used even in comercial softwares as it is. Many of its main applications are also free and BSD-4 licensed but each derived application can have its own propietary license.

Main Features

Kratos is multiplatform and available for Windows, Linux (several distros) and macOS.

Kratos is OpenMP and MPI parallel and scalable up to thousands of cores.

Kratos provides a core which defines the common framework and several application which work like plug-ins that can be extended in diverse fields.

Its main applications are:

Some main modules are:


Here you can find the basic documentation of the project:

Getting Started


More documentation


Examples of use

Kratos has been used for simulation of many different problems in a wide variety of disciplines ranging from wind over singular building to granular domain dynamics. Some examples and validation benchmarks simulated by Kratos can be found here

Barcelona Wind Simulation


Organizations contributing to Kratos:

International Center for Numerical Methods in Engineering

Chair of Structural Analysis
Technical University of Munich

Altair Engineering


Institute of Structural Analysis
Technische Universität Braunschweig

University of Padova, Italy

Our Users

Some users of the technologies developed in Kratos are:

Airbus Defence and Space
Stress Methods & Optimisation Department

Siemens AG
Corporate Technology

ONERA, The French Aerospace Lab
Applied Aerodynamics Department

🤗 Looking forward to seeing your logo here!

Special Thanks To

In Kratos Core:

  • Boost for ublas
  • pybind11 for exposing C++ to python
  • GidPost providing output to GiD
  • AMGCL for its highly scalable multigrid solver
  • JSON JSON for Modern C++
  • ZLib The compression library

In applications:

How to cite Kratos?

Please, use the following references when citing Kratos in your work.