There is a wide variety of content management systems (CMS) available on the market, each with its characteristics, advantages and disadvantages, but the open source, such as Joomla, WordPress and Drupal are the ones who stand out, not only because they are free, but also because of their versatility and contemporaneity, in issues such as: ease of use, possibility of customization, support, security, adaptability and amount of resources available (modules, components and plugins). These solutions have an extremely relevant aspect for public organizations, bringing citizens and businesses closer to their governments, by providing a more direct and intuitive access to government information and services (Fang, 2002). To achieve the benefits of its implementation, it is necessary an analysis of the solutions available on the market and which ones are best suited to certain management objectives. Through a comparison of data and information collected, it is highlighted the advantages and disadvantages of each of the three CMS mentioned, especially which one is most indicated for a specific context of application and project typology in public administration, using for these rankings of use and popularity on platforms such as W3Techs and BuiltWith, as well as a set of supporting documentation.