TikTok is a short-form video hosting service owned by the Chinese company ByteDance. It launched in 2017 for iOS and Android in most markets outside of mainland China. It became available worldwide only after merging with another Chinese social media service, Musical.ly, on 2 August 2018.
See also: Censorship of TikTok, Libs of TikTok, Censorship by TikTok, List of most-followed TikTok accounts, Tik Tok (song), and List of most-liked TikTok videos.