Wikipedia Wikipedia is a free, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Wikipedia has 17 million articles (3.5 million in English)... Free Open Source Web Android iPhone Blackberry Android Tablet ... Kindle Fire MediaWiki Ad-free HTTPS Support IFTTT integration Multiple languages ... User generated Add a feature 1297 Like
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 Own wiki Add a feature 53 Like
Wikiwand Like you, we're huge Wikipedia fans! In fact, who isn't? Wikipedia is the greatest curator of human knowledge, allowing people all around the world to freely... Free Web iPhone Chrome Safari Firefox No features added Add a feature 13 Like
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 22 Like
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 No features added Add a feature 12 Like
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 OS X Windows Web No features added Add a feature 18 Like
Metacademy Metacademy - a free open source platform for efficient, personalized learning. Free Open Source Web Community based Knowledge base Add a feature 9 Like
Miraheze Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains, extensions and many other features. Free Open Source Web No features added Add a feature 7 Like
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 Add a feature 11 Like
Encyclopedia of Earth Expert-reviewed information about the Earth. For everyone. Free Web No features added Add a feature 5 Like
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 10 Like
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 OS X Windows Linux Web Self-Hosted No features added Add a feature 3 Like
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 3 Like
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 2 Like
