Hi vmassol, wiktor has commented on: "Where are the sources for CKBuilder?" ---- Apologies for taking so long to publish it. We had a plan to rewrite CKBuilder to node.js, but after realising that it would be a pretty time-consuming task, we've decided to postpone it till CKEditor 5. After cleaning up the code, documentation etc. the source files are finally available: https://github.com/ckeditor/ckbuilder [1] Thanks for your patience! ---- You can view the comment at the following url http://ckeditor.com/comment/132339#comment-132339