This thesis discusses the development of a hotel booking web application. I got the motivation for it from the daily struggle people in my country "Yemen" face when they try to secure an appropriate accommodation. I thoroughly analyzed the existing problem and realized the exact needs, I then engineered the application using technology that is user friendly and also modern, most important tools where React , CSS, HTML for the frontend and Spring for a robust backend. The thesis text details the entire development lifecycle, covering system implementation, testing and also an analysis of the various technologies that were used. Finally, the thesis concludes with an evaluation of the system's performance and proposes future enhancements to further improve the application functionality and user experience.