This capstone project explores the critical importance of web accessibility in front-end development, emphasizing inclusivity for users with diverse abilities. With over 1 billion individuals globally experiencing some form of disability, this study focuses on creating a web accessibility analysis and optimization web app. The research identifies gaps in existing tools like Lighthouse, which often miss nuanced accessibility issues. Using WCAG standards, the app analyzes HTML code to detect violations, such as missing alt text, improper ARIA roles, and low contrast ratios. Featuring visualization, recommendations, and downloadable reports, the app aids developers in achieving WCAG AA compliance. The project underscores the value of inclusive digital design, offering practical implications for developers, businesses, and educators, while setting a foundation for future enhancements, including AI integration and internationalization.