Encyclopedia of Earth Alternatives

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.

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Conzept is an attempt to create an encyclopedia for the 21st century. A modern topic-exploration tool based on Wikipedia, Wikidata, Open Library and many other information sources.

Kiwix enables you to have the whole Wikipedia at hand wherever you go!

WikiSpooks is a global alternative encyclopedia on politics, spy craft, deep state intelligence, and conspiracies, free of corporate influence, partisan politics, or government propaganda for historians and truth-seekers to read, edit, and share.

A wiki for providing free knowledge where authors use their real, verified names.

Oppia is a free, open-source learning platform.

Open Source

Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a...

Encyclopedia.

Mapping all human knowledge

A decentralized crowdsourced encyclopedia.

Download WikiExplorer for free. WikiExplorer is similar to the windowsExplorer. The filesystem is visualized within.

An open wiki and discussion platform where contributors get paid for helping expand the knowledge base