Maxthon (originally known as MyIE2) is a freeware web browser for Windows, OS X and Linux that is developed in China by the company Maxthon Ltd.t has corporate offices in San Francisco, Beijing, Hong Kong and Shanghai. Most of Maxthon’s engineers live and work in the company's Beijing office, which develops and maintains versions of the Maxthon web browser for Windows, Mac, iOS, Windows Phone and Android.