Interactive maps are a digital tool that makes information available to people visually, in a single set. In addition, they offer the necessary flexibility so that each person can access the information of their interest. These features make these maps an optimal tool to encourage citizen participation. A successful example of the use of these maps (as a tool to promote citizen participation) is the "Mapa Infoparticipa" project which, through the use of these tools, socializes the levels of transparency of local governments in countries such as Spain, Ecuador, Colombia, Chile and Brazil. This article defines interactive maps and explains their constitution as a tool to promote citizen participation, based on the experience of the project "Mapa Infoparticipa" (Infoparticipa Map).