TreasuryDirect is an online platform provided by the U.S. Department of the Treasury that allows individuals to buy and manage U.S. government securities, such as Treasury bonds, Treasury bills, and Treasury notes. It offers a secure and convenient way for investors to purchase these financial instruments directly without needing a broker. Users can create an account on TreasuryDirect to view their holdings, reinvest interest payments, and redeem securities when they mature. The platform is designed for both individual investors and institutions, making it easier to participate in the U.S. government's borrowing program.