Encyclopedias

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.

MusicBrainz is a community music metadatabase that attempts to create a comprehensive music information site. You can use the MusicBrainz data either by browsing this web site, or you can access the data from a client program — for example, a CD player program can use...

Kiwix enables you to have the whole Wikipedia at hand wherever you go! You don't need Internet, everything is stored on your computer, USB flash drive or DVD!.

Ibis is a federated encyclopedia which uses the ActivityPub protocol, just like Mastodon or Lemmy. Users can create, browse, edit articles and use many other features. If you want to start a wiki for a TV series, a video game, or an open source project, then Ibis is for you!

The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica, Inc., a privately-held company. The articles in the Britannica are aimed at educated adult readers, and written by a staff of about 100 full-time editors and...

Wikiless is a free open source alternative Wikipedia front-end focused on privacy.

Scholarpedia is a peer-reviewed open-access encyclopedia written and maintained by scholarly experts from around the world. Scholarpedia is inspired by Wikipedia and aims to complement it by providing in-depth scholarly treatments of academic topics.

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.

IFDB is a Wiki-style community project: members can add new game listings, write reviews, exchange game recommendations, and more.

Metapedia is an electronic encyclopedia which focuses on culture, art, science, philosophy and politics.

Non-profit history encyclopedia with the mission to engage people with cultural heritage and to improve history education worldwide.

An Android app for browsing songs, artists, and anything related to them using the data from MusicBrainz.

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 editable content. Infogalactic's pages are interlinked in order to connect the user to related pages with...

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.

Dictionary and offline Wikipedia reader.

"Aard Dictionary is a free, fast, easy to use word lookup program that

looks up words fast even with huge dictionaries like English Wikipedia looks up words in multiple dictionaries in multiple languages without switching .