MarvinSketch, a few years ago. The web-based sketcher does not have all the features that an advanced desktop technology already has, but that was not our goal. We wanted to create a light-weight, fast and easy-to-use web application. For delicate and complex issues the desktop based MarvinSketch is still a better choice. We also created (and we are continuously improving) a cookbook to show some examples to ease the pain of migration from Marvin Applet to Marvin JS. We still welcome any feedback and suggestion on
our forum - and also in the comment field below this post.