There are 2 major types of programs that are available for international students eyeing to study in Germany without IETLS i.e English and German. As per the German education system, the university courses are divided based on the medium of instruction:
International students who are not familiar with local languages of Germany can opt for a course which is taught in the English language. Almost all German universities offer a bunch of courses in English to attract international students. Candidates from English speaking countries can directly study these courses without giving any language proficiency test, however, other candidates need to take these tests.
Another option for international students is to study the same programs with the German language as the medium of instructions. Students must ensure that they are comfortable with the language before the admission process begins. The German language requirements might vary from university to university. Most of the institutions accept a certification ranging from level B1 to C1.