This paper presents a comparative analysis of three programming technologies and their application in building a web application, taking into account the code on the server-side and the user interface side. Three equivalent applications Angular, Vue, and React were analyzed. The needs for web applications are described, the implementation of particular functionalities in all technologies is presented together with the programming of database functionalities. The article is aimed at helping students of computer science faculties to make an informed choice of a framework or library for a specific project, taking into account the differences between these popular solutions.