This add-on wraps Ace editor inside a TextArea-like Vaadin component. Ace is a code editor written in JavaScript. It supports a lot of languages and features including syntax highlighting, indenting, error checking, etc. Ace homepage: http://ace.ajax.org/ From version 0.8.15 onwards this add-on requires Vaadin 8. Versions 0.7.0 - 0.8.14 are for Vaadin 7, and versions before that are for Vaadin 6. See the Source Code link for some instructions --> This add-on is still in an experimental phase, interfaces etc. are subject to change.