FamilySearch is a nonprofit organization and website offering genealogical records, education, and software. It is operated by the Church of Jesus Christ of Latter-day Saints (LDS Church also known as the Mormon Church), and is closely connected with the church's Family History Department. The Family History Department was originally established in 1894 as the Genealogical Society of Utah (GSU); it is the largest genealogy organization in the world.
FamilySearch maintains a collection of records, resources, and services designed to help people learn more about their family history. Facilitating the performance of LDS ordinances for deceased relatives is another major aim of the organization. Although it requires user account registration, it offers free access to its resources and service online at FamilySearch.org.