This project entitled "conception and development of a web car management application (fuel and insurance/visit management)", presents our work for the graduation project to obtain the bachelor’s degree in mathematics and computer science at the faculty of sciences Agadir. The application enables users to monitor informations about their cars, including fuel management and insurance/visit alerts. It was modelled using the UML formalism and developed using MERN technology (MongoDB, ExpressJS, ReactJS, NodeJS).