Charles University is a member of the European University Alliance (4EU+), a partnership of eight leading European universities: Heidelberg Universität, Paris-Panthéon-Assas University, Sorbonne Université, University of Copenhagen, Université de Genève, Università degli Studi di Milano, University of Warsaw and Charles University. This partnership allows students and staff to participate in a wide range of educational, scientific or leisure activities - courses or summer schools, both face-to-face and online.
The University also has agreements with many universities around the world. These allow students to participate in educational and research stays or internships, language courses, winter/summer schools, etc. The University has agreements with institutions in 28 countries around the world, including the United States, Japan and Israel.
Charles University has been paying attention to developing relations with a narrowly defined group of universities called strategic partnership.