Sublime Text with Elm language support[1] does auto compilation and is plenty enough. It also comes with an extension to SublimeREPL[2] [1] https://github.com/

Sublime Text with Elm language support[1] does auto compilation and is plenty enough. It also comes with an extension to SublimeREPL[2] [1] https://github.com/deadfoxygrandpa/Elm.tmLanguage https://github.com/deadfoxygrandpa/Elm.tmLanguage [2] https://github.com/wuub/SublimeREPL https://github.com/wuub/SublimeREPL