Until now, modeling tools have relied mostly on native technologies, and consequently the graphical modelers based on it are desktop applications. Today there are different initiatives to bring graphical modeling tools up to the cloud. The journey of building modeling tools has never been as exciting as it is right now. What would be the advantages of a cloud based modeling tool? What changes this requires in the architecture of such tools? At Obeo, we have been working on modeling tools in general, and on Eclipse Sirius in particular, for a long time now. During this session, we will discuss the future of development tooling, we will briefly review the progress made over the last years and where the open source community is moving towards. We will demonstrate the different levels of integration we currently have, in particular how we leverage projects like Sprotty, ELK, Theia and Che to move diagrams into the browser. We will discuss how "Server Protocols" allow to bring our tools on different platforms and environments and to run them on the cloud or locally. We will also present the Graphical Server Protocol initiative, which will define a platform-agnostic protocol between a diagram editor in the browser and a graphical server that manages the corresponding models in the cloud. Through this talk you will discover what could be the future of Eclipse Modeling on the web, discover how you can bring your own tools to the cloud thanks to Sirius, and participate in this exciting endeavour!