The Best Open Source Duolingo AlternativesTop Language & Flashcard Learning Tools like Duolingo

The best open source alternative to Duolingo is AnkiDroid. If that doesn't suit you, our users have ranked more than 100 alternatives to Duolingo and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Duolingo are LibreLingo, LinguaCafe , Practice a Language and Kana.

filter to find the best alternatives

Duolingo alternatives are mainly Language Learning Tools, but if you're looking for Flashcard Learning Tools or Dictionaries you can filter on that. Other popular filters include Open Source, Free, EU, Linux + Free, Android + Free and Android. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Duolingo.
Copy a direct link to this comment to your clipboard
Duolingo alternatives page was last updated

Alternatives list

  1. LibreLingo icon
     42 likes

    My goal is to start a community-driven language-learning platform that gives its users and contributors a way to influence its future and adapt it to special requirements.

    68 LibreLingo alternatives

    Cost / License

    Application type

    Platforms

    • Online
     
    |
    4
    13
    Comments about LibreLingo as an Alternative to Duolingo
    DeeJayLSP
    Negative
    3

    To date, it only allows learning Spanish from English

    Guest
    Positive
    5

    It is completely Free Open Source Software and everyone can use it.

    Review by a new / low-activity user.
    hundvd7
    Negative
    2

    Absolutely not even close. Only Spanish from English, and 0 community features

    3 of 4 comments
    LibreLingo icon
    LibreLingo icon
    • Most users think LibreLingo is a great Duolingo alternative.

    • LibreLingo is Free and Open SourceDuolingo is Freemium and Proprietary
  2. LinguaCafe  icon
     5 likes

    LinguaCafe is a free, web-based and self-hosted platform that helps language learners read in foreign languages. It allows users to import texts from different sources, and provides a set of tools that helps them easily acquire vocabulary.

    Cost / License

    Platforms

    • Self-Hosted
     
  3. Practice having a conversation in the language that you want to learn by speaking and writing with OpenAI's GPT-3.5. If you're still learning the language, then you can write your response in your native language and it will be translated to the language that you want to...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
     
  4. Kana icon
     9 likes

    Hone your Japanese skills by matching romanized characters to their correct hiragana and katakana counterparts.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • Flathub
     
  5. 10,000 sentences is an Android app that will help you learn new words in foreign languages.

    Cost / License

    Alerts

    • Discontinued

    Platforms

    • Android
    • F-Droid
     
    |
    1
    Comments about 10,000 sentences as an Alternative to Duolingo
    Guest
    Positive
    0

    Works offline, great for train journeys.

    Review by a new / low-activity user.
    10,000 sentences icon
    10,000 sentences icon
    • Most users think 10,000 sentences is a great Duolingo alternative.

    • 10,000 sentences is Free and Open SourceDuolingo is Freemium and Proprietary
  6. Kakugo icon
     2 likes

    Learn Hiragana, Katakana and Kanji through spaced repetition system for free.

    Cost / License

    Platforms

    • Android
    • F-Droid
     
  7. Kanji Dojo icon
     6 likes

    Android application for practicing writing Japanese characters.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • F-Droid
     
  8. LangX icon
     1 like

    LangX functions similarly to Tandem but has is more focused on language practice and is community-driven, free and open sourced! We are open for every contributions which is even a single line or image, we will be super happy about it.

    Cost / License

    Application type

    Platforms

    • Online
    • iPhone
    • iPad
    • Android
     
  9. Yokatta icon
     1 like

    Yokatta© is an open-source flashcards based language learning app using spaced repetition. The algorithm is heavily influenced by SuperMemo's SM-2 and follows best practices using Android Architecture Components provided by Google.

    Cost / License

    Platforms

    • Android
    • F-Droid
     
  10. Japachar icon
     Like

    This application helps you to learn Japanese characters using a gradual learning algorithm which makes you test-like questions.

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • Flatpak
     
12 of 21 Duolingo alternatives