Here are some of the open source projects that I worked on.
A chat bot that speaks Chinese. Try it out at http://chat.lith.me!
Weixin-PC is the PC client software for Wechat (微信), the famous messaging App with half billion users. Weixin-PC is avaiable on both Windows and Mac OS X. With sweet functions such as push notifications, the client has earned quite a user base before Tencent rolled out their official version.
Clipoff is designed to help you easily capture your screen and save the screenshots in any major formats. Furthermore, you can easily share your screenshot to you social networks, currently including Facebook, Twitter, 新浪微博, and 人人网.
You can find more of my projects on Github.