📚 Freely available programming books

Style guides for Google-originated open-source projects

A UI library by WeChat official design team, includes the most useful widgets/modules in mobile web applications.

CSS is powerful, you can do a lot of things without JS.

Zepto.js is a minimalist JavaScript library for modern browsers, with a jQuery-compatible API

Convert PDF to HTML without losing text or format.

现代 JavaScript 教程（The Modern JavaScript Tutorial），以最新的 ECMAScript 规范为基准，通过简单但足够详细的内容，为你讲解从基础到高阶的 JavaScript 相关知识。

The most trusted Go module proxy in China.

WebCodecs is a flexible web API for encoding and decoding audio and video.

Official site of the Bonfire! 2D game engine made on top of Flame