Project planning is very important for successful business in modern companies. Therefore project leaders need quality system, which helps them assess project's course, so they can take preliminary action. Today there exist many programs that offer functionalities like project planning, but mainly they offer many more features, which may not be needed by a company of a smaller scale. Planning system, developed for this thesis, offers a web application for planning that focuses only on project planning. Projects were divided in categories, which are shown in filterable table. For each project, user can add data for costs or profits or required effort. Updated data is sent form web application to backend server, which then saves it to database. Users differ by titles which are bound to editing permissions.