- jsfiddle.net

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

1,827   $ 7,809,480.00


- repl.it

Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 30+ programming languages: Clojure, Haskell, Kotlin (beta), QBasic, Forth,...

8,729   $ 1,634,040.00


- codewars.com

Codewars is where developers achieve code mastery through challenge. Train on kata in the dojo and reach your highest potential.

25,455   $ 527,760.00


- gulpjs.com.cn

Gulp.js 是一个自动化构建工具,开发者可以使用它在项目开发过程中自动执行常见任务。Gulp.js 是基于 Node.js 构建的,利用 Node.js 流的威力,你可以快速构建项目并减少频繁的 IO 操作。Gulp.js 源文件和你用来定义任务的 Gulp 文件都是通过 JavaScript(或者 CoffeeScript )源码来实现的。

67,122   $ 200,160.00


- koala-app.com

Koala is a gui for Less, Sass, Compass and CoffeeScript. Koala can run in windows, mac, and linux.

309,462   $ 26,460.00


- codacy.com

Codacy automates code reviews and monitors code quality over time. Static analysis, code coverage and metrics for Ruby, JavaScript, PHP, Scala, Java, Python, CoffeeScript and CSS.

142,298   $ 78,000.00


- wikitechy.com

Wikitechy a community of Developers and IT Professional,Tutorialspoint,Learn to Code — to teach people how to different technologies by way of clear and organized lessons

79,132   $ 169,920.00