What is the name of Facebook's internal search engine launched in 2013?

Facebook’s internal search engine launched in 2013 was called Graph Search. Unlike a conventional keyword search engine, it was designed to answer natural-language questions by using relationships in Facebook’s social graph, such as friends, pages, places, photos, and interests.

Facebook announced Graph Search on January 15, 2013, presenting it as one of the company’s major product pillars. Early examples included searches such as friends who liked particular films or photos taken by friends at national parks. Microsoft’s Bing supplied additional web-search results, but Graph Search’s central focus was information available within Facebook.

The feature raised privacy concerns because it made existing social connections and shared content easier to discover. Facebook said results respected users’ existing privacy settings. “Facebook Search” and “Keyword Search” are understandable descriptions, but Graph Search is the specific product name. The original feature became less visible after 2014 and was largely deprecated by June 2019.