Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.
- - Wikipedia is the most popular Web-based, Android, iPhone & iPad alternative to WikiGalaxy.
- - Wikipedia is the most popular Open Source & free alternative to WikiGalaxy.
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 access over 30 million articles.
Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.
- - Oppia is the most popular Windows, Mac, Linux & Self-Hosted alternative to WikiGalaxy.
Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a 'work in progress' founded in 2006. This is part of a continued effort to self-organize information collaboratively, started by Ward Cunningham a decade ago.
HandWiki is a wiki encyclopedia dedicated to scientific computing and science. This wiki can be used for collaborative editing of articles about applications of computers and software programs in different areas of science, finance and engineering.
Lunyr is a decentralized crowdsourced encyclopedia and knowledge base, on the Ethereum blockchain. It rewards users with app tokens for peer-reviewing and contributing information.
WikiLinks provides a fun and engaging experience of Wikipedia content through a brilliantly designed, mind-mapping interface. Browse articles with full video content and see linked articles in a navigable mind-map, tapping and holding for a quick preview.
- - WikiLinks is the most popular commercial alternative to WikiGalaxy.
The underlying idea is organizing millions of contributors to collect and organize all of human knowledge into a vast library and at the same time paying the contributors an increasing share of the revenues earned through advertising
Leftypedia is an aspiring online encyclopaedia dedicated to providing a coherent platform about leftist politics. We want to demystify what we believe to be one of the most misunderstood ideologies, either for people who believe left-wing theoretical texts are too dense to read...
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 thousands of organized topics which can be biographies, free courses for students etc.