OutSystems WebStudio?

OutSystems WebStudio?

  
WYMeditor's main concept is to leave details of the document's visual layout, and to concentrate on its structure and meaning, while trying to give the user as much comfort as possible (at least as WYSIWYG editors).

http://www.wymeditor.org/en/

It's just missing the 1CP ... and you get OutSystems Low End ...