This add-on provides an Ace code editor component where multiple people can edit the same document. NOTE! Requires add-ons: AceEditor, CollabTextArea. http://vaadin.com/addon/aceeditor http://vaadin.com/addon/diffsync That is, AceEditor-0.3.x.jar, diffsync-0.3.x.jar, and CollabAceEditor-0.3.x.jar should be in your WebContent/lib folder, or let Maven handle the dependency automatically (recommended). This add-on provides: - CollabAceEditor: allows multiple people to edit the same shared text using the features of Ace editor. - CollabDocAceEditor: like above + possible to add markers within the code. - SuggestibleCollabAceEditor: like above + possible to generate code snippets (= suggestions). This is an experimental add-on. Interfaces etc. are subject to change. Online demo: http://antti.virtuallypreinstalled.com/collabace/