Smart City is a relatively new idea developed by many business entities, organizations and residents. The world’s population migrates to cities. Experts estimate that more than 65% of the global GDP will be produced by the 600 largest cities in the world in 2025. It definitely motivates to increase the intensification of activities aimed at development of urban systems which improve the efficiency of the residents and entrepreneurs working there. The author focused on a characterization and theoretical creation of the Internet Platform which will synchronize all the processes occurring in the smart city and support the development of a new ideas related with improving life in the city. The main goal of this article is to find a common ground between smart city and CMSes based on GNU GPL license which through the properties are open to development by thousands of users, fully flexible and customized for any urban area. The author suggested 10 areas of smart city which may be reflected in the portal. Usage and integration all of them may revolutionize the look on development of cities in the world.