Language Courses.png

When you create your Duolingo account, you must choose a language course that will teach you your target language in your base language.

Choosing a course[edit | edit source]

To start learning a course, click on the flag icon next to your username in the blue bar at the top of the screen or go directly to the courses page.

Base language[edit | edit source]

Please note that learning from a language means that the entire website will be in that language. This is your base language. If you switch from learning from one base language to another base language, the website will change to reflect the new base language, and will hide the progress belonging to any of your other base language courses. For example: if you are an English speaker learning German and you switch to learning French from Spanish, the language of the website will change to Spanish. You will not be able to see your progress on English to German until you switch your base language back to English.

Target language[edit | edit source]

The target language is the language you are trying to learn.

The courses page will give you quick links to all the languages available from your currently set base language. To change your base language and see what other learning options are available, use the "I speak:" pull-down menu.

Contents[edit | edit source]

A course is a language tree, and in the case of the English base language, four target languages have stories.

Creation[edit | edit source]

Duolingo's language courses are created and maintained in the Incubator by volunteers and language experts with the assistance of staff.[1] Some of these courses are also a result of a partnership between Duolingo and organizations such as the Peace Corps[2].

A listing of all available and in-development courses can be found at the Incubator website. Course information can also be found on the courses page and in the course list, though these may not include all courses or be completely up-to-date. 

Statistics[edit | edit source]

The following are statistics related to the courses currently in the incubator. A description of what each specific course phase means can be found here.

Number of courses per language
AvailableTo learn
(39 languages)
Korean(02)Japanese(02)Scottish Gaelic(01)Indonesian(01)Swahili(01)Romanian(01)Polish(01)Klingon(01)Catalan(01)Arabic(01)
Finnish(01)Hungarian(01)Vietnamese(01)Dutch (Netherlands)(01)Guarani(01)Norwegian (Bokmål)(01)Hawaiian(01)Latin(01)Hindi(01)Ukrainian(01)
Turkish(01)Navajo(01)Danish(01)Irish(01)Welsh(01)Czech(01)Greek (modern)(01)High Valyrian(01)Hebrew(01)
For speakers of
(23 languages)
English(36)Spanish(10)Portuguese(06)Chinese(06)French(06)Arabic(04)Italian(04)Russian(04)German(03)Dutch (Netherlands)(03)
Indonesian(01)Greek (modern)(01)Thai(01)
To learn
(9 languages)
English(05)German(02)Swedish(02)Spanish(01)Esperanto(01)Yiddish(01)French(01)Haitian Creole(01)Italian(01)
For speakers of
(12 languages)
Volunteer Courses Statistics
Phase 1Phase 2Phase 3
Number of courses (113)151088
One course entering the phase every (average days)232931
INCUBATION STATISTICSPhase 1Phase 2Phase 2Phase 3Phase 1Phase 3
Average duration329221545
Fastest original courseSpanishFrench (31)EnglishScottish Gaelic (14)EnglishScottish Gaelic (146)
Fastest reverse coursePortugueseSpanish (27)EnglishArabic (15)FrenchSpanish (238)
Fastest new target languageEnglishNavajo (43)EnglishScottish Gaelic (14)EnglishScottish Gaelic (146)
Fastest new source languageTurkishEnglish (44)ThaiEnglish (40)TurkishEnglish (181)
Languages entering per year
YearTarget languagesSource languages
2019LatinScottish GaelicArabic
2017JapaneseChineseKoreanCzechHigh ValyrianSwahiliThai
2016HungarianWelshGuaraniRomanianVietnameseGreek (modern)Hebrew
2015RussianTurkishUkrainianEsperantoNorwegian (Bokmål)PolishCatalan
2014IrishDanishSwedishDutch (Netherlands)CzechJapaneseChineseIndonesianPolishUkrainianHungarianVietnamese
HindiRomanianKoreanArabicGreek (modern)
2013FrenchRussianGermanDutch (Netherlands)Turkish
Languages entering the incubator per year
YearTarget languagesSource languages
2019LatinScottish GaelicFinnish
2017JapaneseChineseHaitian CreoleArabic
2016KoreanHigh ValyrianBengaliTagalogTeluguPunjabiTamil
2015HindiCzechYiddishWelshNorwegian (Bokmål)GuaraniSwahiliIndonesian
KlingonCatalanVietnameseGreek (modern)Hebrew
RomanianPolishDutch (Netherlands)
ArabicGreek (modern)
JapaneseChineseDutch (Netherlands)IndonesianTurkishHungarianRomanian

See also[edit | edit source]

References[edit | edit source]

  1. Incubator
  2. How the Peace Corps teamed up with Duolingo to create language courses.
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