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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 3.1.2 has been released

The Modelio development team is glad to announce the release of Modelio 3.1.2. Modelio 3.1.2 is a maintenance release. It fixes in particular a refresh issue due to the Element view.

Modelio 3.1.2 release note.

Download Modelio 3.1.2

Discover Modelio Store extensions

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

Go to the Modelio Store

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
    The /.modelio directory is created when Modelio is started successfully for the first time.

    Have you tried to allocate different amounts of memory in your Modleio launcher/shortcut?

    Example (in green)
    .../modelio.sh -consoleLog -vmargs -Xms1024m -Xmx2048m

    (in red = another way to get feedback: the Modelio console)
  • Feed type

    This happen on the images, icons that are loaded from the overloading of from or

    I dont do any special use of this bitmap, this was working for the 2.2.2 Modelio version

    After the error occurs, even a new project will have the error...
  • Feed type
    Unfortunately, the .modelio directory and log file is not created on the Mac that displays the issue. I guess, it's because Modelio crashes before it has a chance to create the directory and log file. On our other Mac, the .modelio directory and log file(s) are there.
  • Feed type

    How do you use this MetamodelImageService? Could share your code?

    Which version of Modelio do you use? Could you give us a link to download your project?


  • Feed type
    Hi chm,

    Thanks for the reply

    I have actually used class diagrams (I wrote sequence in first post by mistake) and I've used unmask > child generalisations on root class but I've got just a few direct subclasses of root class (3 of more then 20)...

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