Maxthon is a freeware web browser developed by the company Maxthon Ltd., based in Beijing, China. It is available for Windows, macOS, Linux, and as Maxthon Mobile for Android and iOS. On July 7, 2012, Maxthon released Maxthon for Mac, with Maxthon for iPhone and iPad released in August 2012. On December 10, 2012, Maxthon Cloud Browser, also named Maxthon 4, was released.

The current iteration, Maxthon v6, is based on the Chromium source code and was released November 30, 2020.