Alternatives to Citizendium for all platforms with any license

  • 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

    No features added Add a feature

    FANDOM 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...

    • Warning The articles are not accurate, out of date and politically spun.

    Free Web

    No features added Add a feature

    Infogalactic 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

    No features added Add a feature

    Reference.com 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

    No features added Add a feature

    Encyclopædia Britannica 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

    Ad-free Multiple languages Add a feature

    Referata icon

  • Oppia

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

    Free Open Source Mac Windows Linux Web Self-Hosted

    Learn with Flashcards Add a feature

    Oppia 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

    No features added Add a feature

    Dixio icon

  • Stubia

    Stubia is a mobile encyclopedia that limits each article to 160 characters: this limitation makes each topic easy to understand.

    Free Web

    No features added Add a feature

    Stubia 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

    No features added Add a feature

    Viki - Wikipedia 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.

    Free Web

    CrowdSourced Add a feature

    Newslines icon

  • Wikifur

    User-editable encyclopedia for fans of anthropomorphic animals. Over 18,000 articles on furry community and culture in twenty-one languages.

    Free Web

    No features added Add a feature

    Wikifur icon

  • Encyclopedia.com

    Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our free, online library.

    Free Web Java Mobile

    No features added Add a feature

    Encyclopedia.com icon

Platforms

Show 18 less popular platforms

License

Citizendium Comments

Echo echo ... Feels empty in here

Maybe you want to be the first to submit a comment about Citizendium? Just click the button up to your right!