Atom

Syntax highlighting and autocompletion for the language Elm

70,397

React.js (JSX) language support, indentation, snippets, auto completion, reformatting

957,059

A preview of the full source code.

7,435,112

Emmet – the essential tool for web developers

4,668,053

Beautify HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more in Atom

9,027,809

Haskell IDE

256,020

davidwatkins73