This paper presents the design and implementation of a web-based application for an advertising system. There are many places in our country where billboard advertising has not become popular yet. Also, there are many companies that don't prefer to promote their services or products through billboards for not having a proper advertising system. There is also no such platform where vehicles can be used for advertisement purposes. While researching on these issues, there was found no connecting bridge between the vendors and the customers, which is one of the main reasons for not utilizing the billboards properly and kept them empty. To solve the mentioned problem, we came up with an idea to develop a website to allow the vendors to showcase their empty billboards and vehicles which can be used for advertising purposes and it allows the customer to choose any of the available billboards/vehicles for advertising without hassle. The main purpose of this research work is to create a web-based common platform for companies who want to rent advertising space on billboards and on the walls of vehicles, and also for the owners of the billboards and vehicles. The main contribution of this paper is to develop an online web application for companies who want to rent empty space on billboards and the walls of vehicles. In order to maintain the advertising system, the admin of the website has made appropriate rules and regulations which will fulfill the demands of the vendors and customers. Here, the system has discussed all the details, such as the connection between the vendors and customers, the efficiency of the website, transaction method, etc. The proposed web application developed in this paper has been tested and it is found to be user-friendly and very efficient.