What is Douyin? Douyin is a mobile-based 15-second video platform that’s gained massive popularity in China over the last year. It currently has over 100 million registered users and its 66 million daily active users rack up over 1 billion video views every day. Originally launched in 2016 by Chinese technology company Bytedance Inc. Douyin received a large investment from news platform Toutiao (also a ByteDance company) early in 2017 and has also been launched in other parts