Language tandem exchanges offer students valuable opportunities for autonomous learning and authentic intercultural communication encounters. This paper will discuss the key principles of tandem language exchange, and in particular online ones, and then present the EU-funded European University Tandem (EUniTa) project which was developed by colleagues from seven European partner universities to create an integrated online platform, with audio/video and chat interfaces. EUniTa allows an innovative automatic matching and meets the learning needs of university students by providing them with materials to develop their Basic Interpersonal Communication Skills (BICS) as well as their Cognitive Academic Language Proficiency (CALP). In the conclusion, areas for future research are identified to measure the success of the project and its longevity. [For the complete volume, "Professional Competencies in Language Learning and Teaching," see ED595297.]