Introduction
OPENMODELICA is an open-source Modelica-based1 modeling and simulation environment intended for industrial and academic usage.Its long-term development is supported by a non-profit organization – theOpen Source Modelica Consortium (OSMC).An overview journalpaper is available andslides about Modelica and OpenModelica.
The goal with the OpenModelica effort is to create a comprehensive Open Source Modelica modeling, compilation and simulation environment based on free software distributed in binary and source code form for research, teaching, and industrial usage.We invite researchers and students, or any interested developer to participate in the project and cooperate around OpenModelica, tools, and applications.

Join the OpenModelicaInterestmailing list to get information about new releases.
Help us: get the latestsource code or nightly-build and reportbugs.
To learn about Modelica, read abook or atutorial aboutModelica.
Interactive step-by-step beginners Modelicaon-line spoken tutorialsInteractiveOMWebbook with examples of Modelica textual modeling andtextbook companions with application OpenModelica exercises.AJupyter notebook Modelica mode, available in OpenModelica.
To get advice how to make existing Modelica libraries work in OpenModelica, seePorting.
For systems engineering with requirement traceability and verification, seeModelicaML.
OpenModelica provideslibrary coverage reports of open-source Modelica libraries showing which libraries work well with OpenModelica and how the support improved over time.
This page references Modelica®, which is a registered trademark ofModelica Association. ↩︎
Latest news and events
- 2025-04-04Openmodelica v1.25.0 released!
- 2025-03-19Openmodelica v1.25.0-dev.beta.1 released!
- 2025-02-04Openmodelica v1.24.4 released!
- 2025-01-07OpenModelica 2025
- 2024-12-14Openmodelica v1.24.3 released!
- 2024-11-15Openmodelica v1.24.2 released!
- 2024-10-09Openmodelica v1.24.0 released!
- 2024-09-16Openmodelica v1.24.0-dev.beta.0 released!
- 2024-07-04Openmodelica v1.23.1 released!
- 2024-06-06Openmodelica v1.23.0 released!
- 2024-05-20Openmodelica v1.23.0-dev.beta.1 released!
- 2024-03-12American Modelica Conference 2024!
- 2024-03-11Openmodelica v1.22.3 released!
- 2024-02-21Openmodelica v1.22.2 released!
- 2024-02-05OpenModelica 2024
- 2023-12-13Openmodelica v1.22.1 released!
- 2023-11-08Openmodelica v1.22.0 released!
- 2023-04-18OpenModelica 1.21.0 released!
- 2023-02-07–2023-02-08MODPROD 2023
- 2023-02-06OpenModelica 2023