The purpose of this final work is to design and create software solution i.e. web application that would enable farmers to better cooperate and easier access to its customers. The application is divided into two modules. The first module is a marketplace in which the farmer can add his products by posting essential information about them. The product can then be found in the marketplace by searching or filtering. By clicking on the product, more detailed information is obtained and from where the buyer can contact the farmer directly via messages. The customer can add the product to the cart and order the desired products by going to the cart itself. Farmers receive the order and when it is executed, they mark it as ordered, then the customer can then see the order as completed and give each product a rating and comment. The second module is messages where customer and farmer can have conversations in real time. Selected technologies for creating the system are: Blazor that uses C # and Web Assembly, SignalR, MudBlazor, and Entity Framework Core with Microsoft SQL Server to create and work with the database. The first part of this final work describes the selected technologies that were used to create the system, the second part describes the architecture of the system and the database, and the third part describes the main functionality of the system.