The main goal of this undergraduate thesis is the development of a web application that offers multiple possibilites and options regarding the courses for visitors. The application itself was developed using latest software tools such as React.js and Node.js, and the guiding idea is to provide its users with -easy to use options for viewing, hosting, buying and selling courses. The application is made of two main components; client and server side which are communicating at all time. Unregistered users (guests) are allowed to use only the basic option; to view available courses. In order to use full potential of the application, one must register an account or login. Apart from mentioned features, application gives its user the possibility to create their own courses, edit them and get paid. Buying courses from other uses is also available. To integrate those options Stripe payment processing software was used due to the fact that it provides simple and easy to use platform that requires minimum knowledge and effort from average user.