This study investigates the enhancement of starch-based films with MXene nanoplatelets to improve their mechanical properties, water and oxygen barrier properties, and biodegradability. MXene, a two-dimensional material derived from transition metal carbides and nitrides, was incorporated into starch films at various loadings (2.5, 5, 7.5, and 10 wt%). The addition of MXene significantly improved the mechanical properties of the films, with the Young's modulus and tensile strength increasing by 321.4% and 92.9%, respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of the films were reduced by 92.9% and 74.0%, respectively, due to the formation of a dense network and the alignment of MXene nanoplatelets. The films retained their biodegradability, decomposing completely within 6 weeks in soil. These findings demonstrate the potential of starch/MXene nanocomposite films as a sustainable and eco-friendly alternative for packaging applications.This study investigates the enhancement of starch-based films with MXene nanoplatelets to improve their mechanical properties, water and oxygen barrier properties, and biodegradability. MXene, a two-dimensional material derived from transition metal carbides and nitrides, was incorporated into starch films at various loadings (2.5, 5, 7.5, and 10 wt%). The addition of MXene significantly improved the mechanical properties of the films, with the Young's modulus and tensile strength increasing by 321.4% and 92.9%, respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of the films were reduced by 92.9% and 74.0%, respectively, due to the formation of a dense network and the alignment of MXene nanoplatelets. The films retained their biodegradability, decomposing completely within 6 weeks in soil. These findings demonstrate the potential of starch/MXene nanocomposite films as a sustainable and eco-friendly alternative for packaging applications.