Climate change resulting from CO2 emissions has been an extremely important issue in recent years. Concern for the environment is becoming an increasingly important challenge facing modern society. One of the solutions to reduce greenhouse gas emissions is to develop the availability of public transportation. Encouraging city residents to leave their private cars and use public transportation can have a positive impact on the environment. However, the development of an accessible network is only one step in encouraging the use of public transportation. Nowadays, the vast majority of society makes conscious use of new technologies. Therefore, it is equally important to provide solutions that will allow a quick and easy way to check schedules, find an interesting connection and purchase a ticket. The article will present IT tools to support the process of traveling by public transport in Lublin. Keywords: public transport, passenger, Lublin, application