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
Everipedia Everipedia removed some of the more annoying aspects of Wikipedia and created a site that is much easier to use. Notability requirements are eliminated and citations /... Free Mac OS X Windows Linux Android iPhone ... iPad CrowdSourced User generated Add a feature 48 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
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
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
PCGamingWiki PCGamingWiki aims to list fixes and workarounds for every single PC game Free Web No features added Add a feature 3 Like
Wikidot Online collaborative wiki hosting for organizations,etc. Now it's easier than ever to build a website. Publish content, share your documents, collaborate with... Freemium Web Real time collaboration Add a feature 6 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
Gamepedia.com Gamepedia.com is the authoritative source for video game information on the internet. In addition to hosting the official wikis for over 200 titles such as Minecraft and... Free Mac OS X Windows Linux Web Android ... iPhone Chrome OS Android Tablet iPad User generated Add a feature 2 Like
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 4 Like
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 OS X Windows Linux Web Android ... Chrome OS Android Tablet Social media integration Add a feature 3 Like
UserPress Wiki knowledge management for WordPress. 100% open source GPL. Use any theme. No modifications required. Commercial Self-Hosted Wordpress Knowledge base Real time collaboration Add a feature 3 Like
Scholarpedia Scholarpedia is a peer-reviewed open-access encyclopedia written and maintained by scholarly experts from around the world. Scholarpedia is inspired by Wikipedia and... Free Open Source Web No features added Add a feature 3 Like
