Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
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.
Mate Translate - Ultimate translation app for Mac, iOS, Chrome and many more
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Crowdin - Localize your product in a seamless way
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 .