when was tiktok made

TikTok was originally launched in China in September 2016 by the Chinese tech company ByteDance under the name Douyin. The international version of the app, known as TikTok, was launched in September 2017. The app gained significant global popularity after ByteDance bought the similar app Musical.ly in November 2017 and merged it with TikTok in August 2018, which helped TikTok explode in popularity worldwide.