[iyn]

There are some packages that provide support for flow in atom editor, like: https://atom.io/packages/ide-flow

I've been testing atom for front-end development in the last few days and it's pretty good, definitely worth checking out (I'm saying this as a vim-lover)

[girvo]

Atom with eslint, the react plugin and eslint-babel is just amazing for ES6/7 and React development. It's so much faster than it used to be, it's actually amazing.