The easiest way to get your own Modeling Tool

Eclipse Sirius dramatically reduces the time for creating domain-specific modeling workbenches.

Read More

Sirius Day
24th of April 2018 | Eindhoven

Sirius Day Eindhoven is over :(
Thanks to the attendees, speakers, and partners, Altran Netherlands and the Eclipse Foundation.
You were more than 60 to enjoy this intensive day about Eclipse Sirius.
No debate: the Sirius community and the interest for this open source modeling tool is growing!

Enjoy the slides and photos of this special day!

We are already looking forward to meeting you at the next event about Sirius.

Stay tuned! Follow the Sirius Twitter account and its hashtag #EclipseSirius

Sign Up for News + Updates

Why Sirius?

Reduce the Tooling Learning Curve

By using a modeling tool which natively supports their own vocabulary, users don't have to learn concepts which are external to their business domain. They just have to learn the views provided by the tool and how to navigate between them. With Sirius, they can rapidly master a new tool and start industrializing their modeling activities.

Decrease the Cost of your Tools

Don't pay for overkill tools providing unnecessary functionalities! Sirius is fully Open Source, but most of all, as it is completely customizable, a modeling workbench created with Sirius is natively based on your own business domain and provides the representations and features which really correspond to your different user's needs.

Complexity Management

Managing complexity requires breaking down a problem into simpler parts. With its multi-viewpoints approach, Sirius allows the user to easily manipulate sub-parts of a model in order to focus on what really matters. In addition, Sirius provides conditional styles, layers and filters to automatically simplify the graphical representations and highlight the elements of interest.

Sirius Rocks


Diagrams, tables and trees


No code generation


Your modeling workbench in hours

Need Support?


Learn how to use Sirius, thanks to online complete user guides and reference manuals


Find relevant posts/answers. No solution yet to your concern? Come and ask your question

Professional Support

Obeo, co-leader of Sirius, provides training, expertise, custom development and support plans