Rocket Mortgage is the largest retail mortgage lender in the U.S., offering fully digital home loans for purchasing or refinancing. As a pioneer in online lending, it allows users to apply, upload documents, get approved, and close on their mortgage entirely online—without visiting a branch. A key part of Rocket Companies, it operates alongside services like Rocket Homes and Rocket Loans, aiming to create a seamless, all-in-one home-buying and financing experience.