Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Discovery FlashCards - Discovery FlashCards is a unique free program that can help you study.
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
Memcode - Flashcards: for coders and scientists. Open-source, free for all.