This study investigates the adaptation of Croatian museums to digital communications with the onset of the Covid-19 pandemic, in the period from March 2020 to June 2024. The introduction emphasizes the importance of the museum's digital transformation, which enables wider interaction with the public and increased visibility through online platforms, social networks and museum websites. The paper analyzes the museum's digital activities on the Facebook social network, investigating changes in communication and interaction with visitors through three periods. The subject of the research includes the analysis of digital content on the websites and social networks of Croatian museums, with an emphasis on the number of followers, reactions and posts. The goal was to determine how museums used digital tools to adapt to new business conditions and how their digital presence changed compared to the period before the pandemic. The research question posed in the paper is: How did Croatian museums use digital communications to adapt to their visitors during and after the Covid-19 pandemic, and how did their digital presence change compared to the period before the pandemic? The methodology includes data analysis from existing studies, quantitative analysis of the museum's digital presence, and comparative analysis of activities before, during and after the pandemic. The paper also considers the wider context of the development of digital technology and its impact on the museum sector, including the application of new technologies and artificial intelligence. Finally, the paper provides an overview of key trends and challenges in the digitization of museum contents, analyzing how museums have managed to achieve significant engagement with the public in the new digital environment. The aforementioned research and analysis of the collected data in this paper can serve stakeholders in cultural tourism as information in defining the strategy of cultural tourism development.