Urban mobility has changed drastically in recent years with the emergence of new modes of transportation and technological advances. That is why this paper presents a tool called SimFleet that allows simulating and evaluating new urban mobility models. The main objective of SimFleet is to allow users to develop and test new mobility management models or policies in the urban environment, as well as to analyze possible new coordination strategies and vehicle fleet regulation mechanisms that can improve efficiency in the distribution of people or goods in urban environments. SimFleet is a simulation tool that provides a convenient environment in which to develop and test complex coordination and negotiation scenarios in the context of a city containing one or more fleets of transport vehicles. The tool can be used to simulate any type of fleet in which a group of vehicles transport items (goods or people) from one location to another within the city. Examples of fleets would be, among others, courier companies, cab services, freight transport (in trucks), bicycle rental services, etc.