Design and implementation of web components This thesis studies the design and implementation of web components within a React ecosystem, in which TypeScript is used for static type checking, Redux is used for state management, and Keycloak is used for secure authentication. Web applications in modern society are getting more complex and need robust and reusable components that cope with dynamic user interactions, secure user management, and efficient visualization of data. The research presented throughout the thesis was developed in order to face these challenges and create a set of interactive web components, which can improve the user experience and overall performance of an application.