In this final thesis, web application for an animal shelter with content management support for both administrators and users was developed. The application is built using Next.js and React technologies, utilizing Prisma as the database for data storage. The administrator is granted permissions to edit, add, and delete content, while users can read the content and submit adoption requests for animals. This application facilitates communication between users and administrators, streamlining the adoption process and ensuring transparency in the shelter's operations. The aim of this study is to investigate the capabilities of Next.js and React technologies in developing web applications for animal shelters and to deliver a user-friendly and efficient user experience. Through examples of CRUD operations and user-administrator communication, this thesis provides insights into the functionalities and advantages of a web application for an animal shelter.