Several free alternatives to FL Studio are available for beat making. Popular options include LMMS, which offers a range of tools for creating beats and electronic music, and Cakewalk by BandLab, known for its professional features and user-friendly interface. Additionally, GarageBand is a great option for Mac users, providing a comprehensive suite of music production tools. Each of these programs has unique features, so you might want to try a few to find the one that best fits your needs.