Cost / License
- Free
- Proprietary
Application type
Platforms
- Online

Apps similar to Encyclopædia Britannica include Wikipedia, which is free and open source. Other options are Wikiversity, Grokipedia, Scholarpedia and Encyclopedia.com. You're spoiled for choice with Encyclopedias like Encyclopædia Britannica: we list more than 25 alternatives for the web, Android, iPhone, iPad and Mac.

EncycloSearch is an ad-free, open source encyclopedia search engine and reader, supported by the Knowledge Standards Foundation. It searches over a dozen encyclopedias at once.


Golden is a self-constructing knowledge database built by artificial and human intelligence with the goal of mapping all human knowledge.

Protopedia is a wiki style database containing information on a wide array of biological macromolecules. The site offers generalized information about the molecule of interest in addition to providing 3D visuals on the structure of the molecule and information on its...
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.







WikiPathways was established to facilitate the contribution and maintenance of pathway information by the biology community. WikiPathways is an open, collaborative platform dedicated to the curation of biological pathways.

Priam, Ancient History Resources is a growing collection of resources about the ancient world. Texts, online magazines, databases, tools and communities are complemented by a section of highlights and a gallery with images from and about antiquity.



The Encyclopedia of Mathematics wiki is an open access resource designed specifically for the mathematics community. The original articles are from the online Encyclopaedia of Mathematics, published by Kluwer Academic Publishers in 2002.

WikiGenes is the first wiki system to combine the collaborative and largely altruistic possibilities of wikis with explicit authorship.


In the history of our species, access to information has never been easier. That is, for sure, an advantage we should cherish.



Small Whale is a free online encyclopedia for children. It adapts Wikipedia and other reputable sources into clear, age-appropriate articles at elementary, middle, and high-school reading levels.
