This thesis documents the processes that are included in developing the Online Learning Management System. Its purpose is to eliminate repeated tasks from traditional learning by providing a more efficient way to manage and arrange the lessons. Its main features are User Management, Course Management, Quiz Management, Quiz Scheduling, and Automatic Grading System. These features are accessible by the associated authorized user roles such as admin, teacher, and student. The system is developed by using ReactJS for building the web interfaces and Java Spring Boot for building the backend system where we integrated the communication with the MySQL database system. In this document, not only user documentation but also developer documentation is included. Therefore, the reader will be able to get insights into what this web app is capable of and how the author developed the features.