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OCPL Digital Library: Duolingo

This guide contains information about all of the online resources that the OCPL offers.

About Duolingo


About Duolingo

Duolingo is the most popular language-learning platform and the most downloaded education app in the world, with more than 170 million users. The company’s mission is to make education free, fun and accessible to all. Duolingo is designed to feel like a game and scientifically proven to be effective. In addition to its core platform, the company created the Duolingo English Test (DET), an affordable and convenient language certification option that is accepted by over 60 universities. In 2016, Duolingo expanded beyond language learning with Tinycards , a reinvention of flashcards designed to make studying fun. The company has raised more than $83.3 million in venture capital from investors including Google Capital, Kleiner Perkins Caufield Byers, Union Square Ventures, New Enterprise Associates, Ashton Kutcher and Tim Ferriss.

Get Duolingo's app for Apple iOS devices or Android devices!

Apple iTunes Store

Android/Google Play

Languages You Can Learn

Language Courses (for English speakers)

  • Arabic
  • Chinese
  • Czech
  • Danish
  • Dutch
  • Esperanto
  • French
  • German
  • Hawaiian
  • Hebrew
  • High Valerian
  • Hindi
  • Hungarian
  • Indonesian
  • Italian
  • Japanese
  • Klingon
  • Korean
  • Navajo
  • Norwegian
  • Polish
  • Portuguese (Brazil)
  • Punjabi
  • Romanian
  • Russian
  • Serbian
  • Spanish (Latin America)
  • Spanish (Spain)
  • Swahili
  • Swedish
  • Turkish
  • Ukrainian
  • Vietnamese
  • Welsh

Courses for Spanish speakers:

  • Catalan
  • English
  • Esperanto
  • French
  • German
  • Guarani
  • Italian
  • Portuguese
  • Russian

To Access Duolingo

Click on the logo below, or go to


Duo logo