With an International Baccalaureate (IB), you must apply via www.uni-assist.de, an institution which will check to see whether your IB is recognized as an equivalent to the Abitur. Your application can then be forwarded to Freie Universität Berlin.
Proof of German language proficiency is expected of all applicants. For a number of programs, knowledge of English too must be demonstrated (min. TOEFL IBT 80 p). Some programs require a higher level of English proficiency and/or a knowledge of other languages.
As a rule, programs begin in winter semester (mid-October). Only Biochemistry, Biology, Chemistry, Computer Science, and Pharmacy currently begin in both summer (starting in mid-April) and winter semesters. The application deadline for winter semester is usually the 15th of July, and the 15th of January for summer semester.
The following links – especially those to “Kompass International” – will facilitate your start of studies at Freie Universität Berlin.