This study reports the fabrication of flexible Magneto-Mechano-Electric (MME) nanogenerators using PVDF/BCT-BZT composite films and Metglas. The 20 wt% BCT-BZT filler composites exhibited enhanced β-phase formation and dielectric properties. The devices yielded 11 V under mechanical force and 3.3 V under magnetic fields, with a power density of 85 μW/m2. The nanogenerators demonstrated potential in energy harvesting from body movement, water droplets, and stray magnetic fields, charging capacitors up to 1.6 V. These results suggest the devices are promising candidates for powering low-energy IoT devices.