• Free German Lessons
  Website with free audio lessons

• Goethe Institut
  Practice German free of charge

• Young Germany
  Career, education and lifestyle guide

• German Academic Exchange Service
  Resources for learners interested in studying, doing research or teaching in Germany

• German Wikibook
  A free textbook for the learning German

• BBC Languages
  Talk German. An introduction to German

• E Language School
  German Words and Phrases, Grammar Lessons, Reading Practice, Video Tutorials

• ActiLingua Academy
  Free beginner and advanced German lessons

• ThoughtCo.
  Learning and teaching German guide

• MIT Open Courseware
  • German I
  • German II
  • German III
  • German IV