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About Modelio

Modelio is an open source modeling environment (UML2, BPMN2, ...). Based on a 20-year track record of high end commercial products, Modelio delivers a broad-focused range of standards-based functionalities for software developers, analysts, designers, business architects and system architects.

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Welcome to the community platform for users who utilize the Modelio open source modeling environment and developers who build extensions for it. This website provides valuable resources and everyone will be happy to help should you have questions.


Modelio 3.5.0 has been released

The Modelio development team is glad to announce the release of Modelio 3.5.0. Some evolutions, fixes and improvements have been made to the modeling tool.

Modelio 3.5.0 release note.

Download Modelio 3.5.0      

Discover Modelio Store extensions

Extend and adapt Modelio by adding modules which provide additional functionalities and services.

Go to the Modelio Store

Community contribution

Modelio for designing Cloud applications

Discover experimental tools for modelling Cloud applications

More information  

Open source Java code generation and reverse tool

With Java Designer, enjoy an open source module that provides Java code generation and reverse.

More information about Java code generation and reverse

Check out the Modelio Store for more open source or free extensions

Free Web Document Publisher

Get a free Web Document Publisher. From your model, generate HTML documentation containing both information on your model and your diagrams.

More information about Web Document Publisher

Check out the Modelio Store for more open source or free extensions


Recent activities

  • Feed type
    Each use case focuses on describing how to achieve a goal or a task. For most software projects, this means that multiple, perhaps dozens of use cases are needed to define the scope of the new system. The degree of formality of a particular software project and the stage of the project will influence the level of detail required in each use case
  • Feed type

    I have a problem with unmasking. If I want to change the order of the methods or attributes in a class diagram, I have to mask these first, then reorder the methods or attributes and then unmask the classes. But how can I unmask the classes with the same layout that they have before they were masked?
    Placing nicely the classes and their links after unmasking takes a lot of time, that's why am asking...
  • Feed type
    That's great, thank you.

    Just so I know, could you please detail the steps of the procedure ? I didn't find by myself.
  • Feed type

    can you recommend a clear setup to avoid the following troubles :

    1/ Modelio create a new workspace in each dir where it is launched from (CLI)

    2/ when double clicking on a class or whatever :
  • Feed type
    It's exactly what I thought the Modeler Module was missing. I added it and now it's OK.

    [File Attachment: Pandemie.zip]

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