This paper presents the development of a web application for online clothing sales using Java, Postgre SQL, and AJAX. The web application includes an admin dashboard, product page, cart page, login and sign-up page, landing page, and orders page. The project aimed to provide a user-friendly interface and a secure, efficient system for buying and selling clothes online. The web application was developed using servlets, JSP, HTML, CSS, JavaScript, and Postgre SQL database management system. AJAX was also employed to enhance user experience by enabling dynamic updates of web pages. The study discusses the methodology used for the development of the web application, including system analysis and design, database design, user interface design, and implementation. The results demonstrate the successful development of a reliable, efficient, and secure web application for online clothing sales. The application can help clothing businesses improve their online presence and reach a broader audience. Key Word: E-Commerce Web Application; HTML,CSS,JS,JAVA