There are a few ways to sign in to your FamilySearch account.
FamilySearch Account
You can create a FamilySearch account at the bottom of the Sign In page by selecting the Sign-Up link. An account gets you full and free access to all the features and tools on FamilySearch.org.
If you already have an account but have forgotten your username or password, simply select the appropriate link—username or password—under the password input box.
Apple, Facebook, or Google
It may be more convenient to use an account you already have with Apple, Facebook, or Google. If you currently have a FamilySearch account, you will be given an opportunity to link to it the first time you sign in. Once the account is linked, you won’t need to remember a FamilySearch password anymore.
Church Account
It isn’t necessary for members of The Church of Jesus Christ of Latter-day Saints to create a FamilySearch account to sign in. A Church account can be used to access FamilySearch in the same way it can be used to access other Church sites and apps, like Gospel Library.