D&T Rent Car is a car rental for rent and also a travel agent who is currently engaged in rental and travel services. So far, D&T has only promoted through brochures or whatsapp. For the reservation or booking process, D&T still does it manually and writes on the book when making a reservation. So the purpose of making this website is to facilitate the customer booking process and also help D&T to have its own website. Making this booking website will use the programming language from Javascript library with the ReactJs, then for the Backend it will use ExpressJs, and database storage will use MongoDB. The data collection needed will use the observation method and also the study of literature, then for the development method of the website, the waterfall method will be used as the development method. The t est method that will be carried out is through black-box testing which will find out the website can run well. So that the website created will be efficient and effective. According to the results, the website that has been created is very suitable and can also make it easier to make reservations.