I would like to use IntelliJ Idea 13 (community edition preferably, but I would also like to know if this is only available in the professional edition) instead of WebStorm. The
As Andrey mentioned, HTML+CSS+JS support is only provided in Idea Ultimate. No additional plugins have to be installed (unless you need Vue.js support or like to use Live Edit - these plugins, along with some others, are not bundled with Idea and have to be installed from the repository (Preferences | Plugins))