The growth of the fashion industry in Indonesia, particularly in Bandung, has increased the demand for effective and efficient sewing courses. Bandung Vision Center, as one of the institutions offering sewing courses, faces challenges in managing registration and monitoring attendance of participants manually. This research aims to design and build a web-based application for registration and monitoring attendance of sewing course participants at Bandung Vision Center. The research method used is the Agile-based Software Development method, which allows flexible system development and is responsive to changing User needs. The results showed that the application built can improve registration efficiency, data accuracy, and monitoring of participant attendance. In addition, this application also provides practical benefits for course managers in managing real-time participant data and improving the quality of services provided. With the implementation of this application, it is expected to increase the competitiveness and reputation of Bandung Vision Center in the local fashion industry.