Developed a backend application for generating andmanaging QR code images of URLs, including URLshortening,interactive local fi le system operations, andseamless user redirection. Utilized Node.js fi le system module with read/writemethods for dynamic QR code creation, integrated npmpackages to enhance performance, and optimized codehandling for faster generation. Optimized QR code generation to achieve responsetimes under 300ms, signifi cantly enhancing effi ciencyand improving the overall user experience.