Line Corporation, located in Tokyo, is a Japanese subsidiary of the South Korean internet search giant Naver Corporation. The company's business is mainly associated with the development of mobile applications and Internet services.

Line Corporation was founded on September 4, 2000, as Hangame Japan Corporation, a South Korean game company owned by Naver. On August 24, 2003, the company was renamed as NHN Japan Corporation. From April 1, 2013, the company is traded as Line Corporation.

Line is a smartphone PC and Mac app which allows users to make calls and messaging with other Line users, both nationally and internationally. The service was launched in June 2011, and it is being used in 230 countries around the world.

Line Webtoon is a major global webtoon syndicate.

Livedoor is a Japanese web portal. It also operates a blogging service, Livedoor Blog, as well as a news portal Livedoor News.

Line Music is a music streaming service that is available in Japan and Thailand.

Line also publishes mobile video games, including LINE Cookie Run and the Disney Tsum Tsum mobile game, based on the Disney Tsum Tsum line of collectible plushies. It is the ninth top mobile game by revenue of 2015, grossing $326 million in 2015.