Tubi is an American streaming service based in San Francisco, California, United States, that launched in 2014. It is a free, ad-supported service, with advertisements shown during unskippable commercial breaks during programming. It is the largest independently owned video service in the United States, with over 15,000 movies and television series currently available.
Tubi was founded by Farhad Massoudi and Thomas Ahn Hicks of AdRise in San Francisco, launching in 2014 as a free service. In June 2019, Tubi announced it had over 20 million active monthly users, and in September 2019, the company reported that users had streamed 132 million hours of content.
Tubi became inaccessible throughout Europe as a result of the GDPR entering into force on May 25, 2018.
In 2019, CEO Farhad Massoud announced Tubi would nearly double their 2018 spend on licensed content, close to 100 million. 
On September 25, 2019, Tubi became available on Vizio Smartcast.
On October 21, 2019, Tubi launched "Tubi Kids", a dedicated hub for the streamer's children-centric content via Roku and supported devices. It was also announced that Tubi would launch in the United Kingdom by early 2020.