菜鸟教程(www.runoob.com)提供了编程的基础技术教程, 介绍了HTML、CSS、Javascript、Python，Java，Ruby，C，PHP , MySQL等各种编程语言的基础知识。

10000+ latest Free jQuery plugins with examples and tutorials for web & mobile developers.

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全球最大的中文 Web 技术教程。

A live pastebin for HTML, CSS & JavaScript and a range of processors, including SCSS, CoffeeScript, Jade and more...

React 中文的论坛

Bootstrap是Twitter推出的一个用于前端开发的开源工具包。它由Twitter的设计师Mark Otto和Jacob Thornton合作开发，是一个CSS/HTML框架。

Plunker - Helping you build the web

TheCodePlayer plays code like a video helping people to learn front end technologies like HTML5, CSS3, Javascript, Jquery easily, quickly and interactively.

Vue.js - The Progressive JavaScript Framework

在线编码-CodePen

CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.

"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.