Glish

Practice foreign languages while you surf the web! Automatically translate words within your web page into a foreign language based on your vocabulary level. Use while surfing the web entirely in a foreign language is too difficult.

Familiarize yourself with the words you tend to see on a daily basis, and practice word recognition with words within a meaningful context, similar to flash card practice. Click on any word to flip through many possible translations! Check out the Quiz Mode to test your knowledge.

Choose from 35 languages. Practice up to 4,300 of the most common words. Private, fast and free. All computation local. While the app has access to every web page, the app does not send data anywhere.

Practice your knowledge with Quiz Mode.

I recommend giving the app permission to run on every page automatically.