#1 – Duolingo
Topping our list of websites that will make you smarter is Duolingo. It is a free website and Android/iOS app that teaches you how to speak and write English, Spanish, French, German, Italian and Portuguese. If you are diligent, you will learn how to speak a new language in a matter of months. Duolingo authors claims you will learn more than 2,000 words using their website, which is equivalent to a first-year college semester.
Website: Duolingo