TikTok, known in China as Douyin (Chinese: 抖音; pinyin: Dǒuyīn), is a video-focused social networking service owned by Chinese company ByteDance Ltd. It hosts a variety of short-form user videos, from genres like pranks, stunts, tricks, jokes, dance, and entertainment with durations from 15 seconds to three minutes. TikTok is an international version of Douyin, which was originally released in the Chinese market in September 2016. TikTok was launched in 2017 for iOS and Android in most markets outside of mainland China; however, it became available worldwide only after merging with another Chinese social media service, Musical.ly, on 2 August 2018.
TikTok and Douyin have almost the same user interface but no access to each other’s content. Their servers are each based in the market where the respective app is available. The two products are similar, but their features are not identical. Douyin includes an in-video search feature that can search by people’s faces for more videos of them and other features such as buying, booking hotels and making geo-tagged reviews. Since its launch in 2016, TikTok/Douyin rapidly gained popularity in East Asia, South Asia, Southeast Asia, the United States, Turkey, Russia, and other parts of the world. As of October 2020, TikTok surpassed over 2 billion mobile downloads worldwide.
Morning Consult ranked TikTok as the third fastest-growing brand of 2020, after only Zoom and Peacock. Cloudflare ranked TikTok as the most popular website of 2021, leading Google.