This wiki is an unofficial, volunteer-created resource made for the benefit of users of the free language-learning service Duolingo. It aims to document each of Duolingo's features and also hosts several user-created guides. This wiki is not limited to information about the Duolingo website, but also facts about Duolingo's mobile applications such as the Android and iOS apps.

If you'd like to help add to or edit this wiki, please first check out our general policies and Wikia's help pages. Also feel free to drop a message in the forum if you have any questions.

Community content is available under CC-BY-SA unless otherwise noted.