Open Source, Collaborative Rich-Text, Web-Based Editor Almost Available
johanneswilm writes: Open source web-based editors such as CKEditor and TinyMCE have been available for more than a decade, and some closed source collaborative editors such as Google Docs have been available since 2007. Creating open source, collaborative, rich-text, web-based editors has proven difficult due to lack of standardization of the lower-level browser features. Now Marijn Haverbeke, the developer behind the popular CodeMirror has started such an editor, called Prosemirror, financed through a crowd-funding campaign. Meanwhile the W3C has installed a task force to rapidly standardize and fix the features needed in browsers to easily create richtext and semantic editors.
And that is exactly what happened here. The software is mostly done (https://github.com/prosemirror/prosemirror), the author has a great track record of releasing and maintaining solid software, and there are demos on the project page (http://prosemirror.net).