Alternatives to Citizendium for all platforms with any license

Platforms

Show 18 less popular platforms
  • Fandom icon

    Fandom

    Fandom is a community-based service that allows anyone to create a wiki on virtually any subject. Discover, share and add your knowledge! Wikia is financed by...

    Free Web

  • Encyclopædia Britannica icon

    Encyclopædia Britannica

    The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica, Inc., a privately-held company. The articles in...

    Commercial Mac Windows Web

  • Reference.com icon

    Reference.com

    Reference.com offers a massive online dictionary, thesaurus, encyclopedia, quote finder, and translator (powered by Google Translate)- all for free. For the...

    Free Web

  • Referata icon

    Referata

    Referata offers hosting of semantic wikis, allowing you to add, structure and store data so it can be managed, shared, browsed and analyzed in as many ways as you...

    Freemium Web Self-Hosted

  • Dixio icon

    Dixio

    Dixio is the solution for all those who care about their language Who want to learn more and enrich their vocabulary: when you receive a presentation or prepare a...

    Freemium Windows Web Android iPhone iPad

  • Miraheze icon

    Miraheze

    Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains, extensions and many other features.

    Open Source Web

  • Viki - Wikipedia icon

    Viki - Wikipedia

    Wikipedia, better than ever—on iPhone, iPad, and Apple Watch. Discover the world and enjoy beautiful typography with this sleek app. FEATURES NEARBY PLACES:...

    Commercial iPhone iPad

  • Newslines icon

    Newslines

    Newslines lets people create shared timelines on any person, product or news event. Writers create news snippets that are combined into interactive multimedia timelines.

  • Infogalactic icon

    Infogalactic

    Infogalactic is an Internet-based, free-content encyclopedia project that is a dynamic fork of Wikipedia and improves upon the online encyclopedia's model of openly...

    Free Web

  • Alchetron icon

    Alchetron

    Alchetron.com is a free social encyclopedia for world where you can create, organize and learn easily using topics. With Alchetron you can search & share...

    Free Mac Windows Linux Web Android ... Chrome OS Android Tablet

  • Encyclopedia.com icon

    Encyclopedia.com

    Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online...

    Free Web Java Mobile

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  • purple icon

    purple

    Dictionary from the Elementary project.

    Open Source Linux

    • Discontinued This project has been replaced by https://launchpad.net/lingo-dictionary. Lingo is fully backwards compatible and will be available in Luna.
  • Oppia icon

    Oppia

    Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.

    Open Source Mac Windows Linux Web Self-Hosted

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