Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Online


Alchetron is described as 'Com is a free social encyclopedia for world where you can create, organize and learn easily using topics' and is a Encyclopedia in the social & communications category. There are more than 25 alternatives to Alchetron, not only websites but also apps for a variety of platforms, including iPad, iPhone, Android and Self-Hosted apps. The best Alchetron alternative is Wikipedia, which is both free and Open Source. Other great sites and apps similar to Alchetron are Ibis Wiki, Encyclopædia Britannica, Miraheze and Wikiless.


Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our free, online library.
Citizendium, powered by MediaWiki, is "an open wiki project dedicated to creating a free, comprehensive, and reliable repository of structured knowledge". Unlike with Wikipedia, a contributor must register using their real name and verify their identity.

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


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.




Wikipedia, better than ever—on iPhone, iPad, and Apple Watch. Discover the world and enjoy beautiful typography with this sleek app.




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



Newslines lets people create shared timelines on any person, product or news event. Writers create news snippets that are combined into interactive multimedia timelines.



A premium wiki host with top-class quality, excellent support, and VisualEditor (a WYSIWYG application), that puts an individual touch to repetitive business.
Wikipedia is now available on your Windows 7 Phone! With this easy to use app, you can satisfy your thirst for information on-the-go. When you are short on time, bookmark your favorite articles - they stay just a finger tap away - anytime, anywhere.


