The top-rated alternative to Wikipedia is Encyclopædia Britannica, which has a free version. People also recommend Kiwix, Scholarpedia, Wikiless and WikiReader. There's no shortage of Encyclopedias like Wikipedia, with more than 50 alternatives for the web, Android, iPad, iPhone and Linux.
Community-driven catalog of learning resources. Links to resources are organized by topics and rated/reviewed by users so you see which ones are the best. It's free and open for everyone.
Hypatia is a research tool for the Linux desktop. It's designed to provide at-a-glance information about the topics you're reading, or about things you're curious about. It lets you find definitions, explanations, and answers related to the text on your display...
Wikipedia is probably the single largest, most comprehensive and simply best information resource out there on the Internet - a really great resource.many people though would like to have access to this giant resource when they're not plugged into the Internet.
Germany
EU
Kiwix-serve is a ZIM compatible Web server. With its help you can deliver ZIM file content over your network. Designed to serve Wikipedia zim files over LAN in an offline setting.
Switzerland
WikiGenes is the first wiki system to combine the collaborative and largely altruistic possibilities of wikis with explicit authorship.
Okawix lets you download the whole content of Wikipedia, with or without images, so that you can browse it offline:
Conzept is an attempt to create an encyclopedia for the 21st century. A modern topic-exploration tool based on Wikipedia, Wikidata, Open Library, GBIF and other useful information sources.
User-editable encyclopedia for fans of anthropomorphic animals. Over 18,000 articles on furry community and culture in twenty-one languages.
Logopedia is a collaborative database for logos and corporate branding. It includes the history of successful company logos, popular branding, and more.
