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, Practice a Language, Kana and LinguaCafe .

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 Linux + Free. 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.
Duolingo iconDuolingo
  346
  • ...

Gamify language learning with Duolingo, offering over 30 languages for free. Practice vital skills with intelligent chatbots and community rewards.

More about Duolingo
More about Duolingo
Duolingo alternatives page was last updated Apr 1, 2025
Copy a direct link to this comment to your clipboard
  1. AnkiDroid icon

    AnkiDroid

     131 likes
    Copy a direct link to this comment to your clipboard

    Anki flashcards on Android. Your secret trick to achieve superhuman information retention.

    102 AnkiDroid alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    AnkiDroid screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Educational
    4.  Customizable

    Features

    1.  Learn with Flashcards
    2.  Srs
    3.  Ad-free
    4.  Works Offline
    5.  Dark Mode
    6.  Automatic Backup
    7. LaTeX icon  Support for LaTeX
    8.  No Tracking
    9.  File Tagging
    10.  File Versioning
    11.  Cross-device syncing
    12.  Multiple languages

    AnkiDroid VS Duolingo

     

    • AnkiDroid is the most popular Open Source alternative to Duolingo.

    • AnkiDroid is Free and Open SourceDuolingo is Freemium and Proprietary
    • AnkiDroid is Privacy focused and LightweightDuolingo is not according to our users
  2. LibreLingo icon

    LibreLingo

     37 likes
    Copy a direct link to this comment to your clipboard

    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.

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    LibreLingo screenshot 1

    LibreLingo Features

    1.  Ad-free
    2.  Crowdsourced
    3.  Save progress

    LibreLingo VS Duolingo

     
    Comments about LibreLingo as an Alternative to Duolingo
    Most Recent Comment
    Douglas Joseph Leão Sales
    Negative Jul 5, 2021
    3

    To date, it only allows learning Spanish from English

    hundvd7
    Negative Nov 6, 2023
    2

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

    Guest
    Positive Jun 17, 2020
    5

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

    Show more comments
    3 of 4 comments
    Duolingo Icon
    LibreLingo icon

    • Most users think LibreLingo is a great Duolingo alternative.

    • LibreLingo is Free and Open SourceDuolingo is Freemium and Proprietary
  4. Practice a Language icon

    Practice a Language

     8 likes
    Copy a direct link to this comment to your clipboard

    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...

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    An example conversation

    Practice a Language Features

    1.  Multiple languages

    Practice a Language VS Duolingo

     
  5. Kana icon

    Kana

     6 likes
    Copy a direct link to this comment to your clipboard

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

    License model

    • Free • Open Source

    Application type

    Platforms

    • Linux
    • Flathub
    Kana screenshot 1
    Kana screenshot 2
    Kana screenshot 3

    Kana Features

    1.  Dark Mode

    Kana VS Duolingo

     

    • Kana is the most popular Linux alternative to Duolingo.

    • Kana is Free and Open SourceDuolingo is Freemium and Proprietary
  6. LinguaCafe icon

    LinguaCafe

     2 likes
    Copy a direct link to this comment to your clipboard

    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.

    License model

    • Free • Open Source

    Application type

    Platforms

    • Self-Hosted
    LinguaCafe screenshot 1

    LinguaCafe Features

    1.  Built-in Dictionary
    2.  Full-Text Search

    LinguaCafe VS Duolingo

     

    • LinguaCafe is the most popular Self-Hosted alternative to Duolingo.

    • LinguaCafe is Free and Open SourceDuolingo is Freemium and Proprietary
  7. 10,000 sentences icon

    10,000 sentences

     7 likes
    Copy a direct link to this comment to your clipboard

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

    License model

    • Free • Open Source

    Country of Origin

    • HR flagCroatia
    • European Union flagEU

    Platforms

    • Android
    • F-Droid
    10,000 sentences screenshot 1
    10,000 sentences screenshot 2
    10,000 sentences screenshot 3
    Discontinued

    Last release was in 2019 and last commit was in 2020

    10,000 sentences VS Duolingo

     
    Comments about 10,000 sentences as an Alternative to Duolingo
    Guest
    Positive Jun 1, 2018
    0

    Works offline, great for train journeys.

    Duolingo Icon
    10,000 sentences icon
    • 10,000 sentences is Free and Open SourceDuolingo is Freemium and Proprietary
  9. Kanji Dojo icon

    Kanji Dojo

     6 likes
    Copy a direct link to this comment to your clipboard

    Android application for practicing writing Japanese characters.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • F-Droid
    Kanji Dojo screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  Dark Mode
    3.  Works Offline
    4.  Gamification
    5.  Cloud Sync
    6.  No registration required
    7.  Offline

    Kanji Dojo VS Duolingo

     
  10. Aprelendo icon

    Aprelendo

     2 likes
    Copy a direct link to this comment to your clipboard

    Language learning platform designed to boost your reading, listening, speaking and writing skills.

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    Aprelendo screenshot 1

    Properties

    1.  Lightweight
    2.  Educational

    Features

    1.  Gamification
    2.  Ad-free
    3.  Text to Speech

    Aprelendo VS Duolingo

     
  11. Kakugo icon

    Kakugo

     2 likes
    Copy a direct link to this comment to your clipboard

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

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid
    Kakugo screenshot 1
    Kakugo screenshot 2
    Kakugo screenshot 3

    Kakugo Features

    1.  Gamification
    2.  Srs

    Kakugo VS Duolingo

     
9 of 20 Duolingo alternatives