List of online encyclopedias

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This is an incomplete list of encyclopedias accessible on the Internet or formerly accessible on the Internet. The largest online encyclopedias are general reference works. There are also many specialized ones. Some online encyclopedia are an online copy of a paper encyclopedia, or an online version. Some, such as Wikipedia, are a separate enterprise.

General reference

Site Language Description Access
Baidu Baike Chinese Collaborative online encyclopedia hosted by the major Chinese search engine Baidu Free Chinese General interest. China's largest wiki Free
The Canadian Encyclopedia English, French General interest (original content of the hard copy Canadian Encyclopedia) Free
Citizendium English General interest, wiki Free, copyleft
Columbia Encyclopedia English General interest Free
Conservapedia[1][2] English American conservative and Christian interests Free
Crnogorska Enciklopedija Montenegrin General interest (hopes to encourage a Montenegrin language Wikipedia) Defunct
Croatian Encyclopedia Croatian General and national encyclopedia Free
Den Store Danske Encyklopædi Danish General interest Free
Digital Universe English Collection of articles on educational, cultural, and scientific topics Free
Doosan Encyclopedia Korean General interest Free
EcuRed Spanish General interest. Cuban Free
Ekşi Sözlük Turkish General interest Free
Encarta English General interest Defunct
Enciclonet Spanish General interest Limited free access and features, subscription for full access
Encyclopædia Britannica English General interest Limited free access and features, subscription for full access
Encyclopædia Britannica 11th Edition (1910–11) English General interest Public domain: completely free access from several online sources English General interest Free
Encyclopedia of China Chinese General interest Subscription
Encyclopedic Dictionary of Vietnam Vietnamese General interest. State-sponsored encyclopedia. Free
Encyklopedia Internautica Polish General interest Free
Enciclopedia Libre Universal en Español Spanish Fork of the Spanish Wikipedia, using wiki software, released under the GFDL Free, copyleft
Encyclopedia Sindhiana Sindhi General interest Limited free access and features
Encyclopædia Universalis French General interest encyclopedia published by Encyclopædia Britannica Subscription
Everipedia English[3] The site lets editors create any page on any topic[3] and anyone can edit a page by creating a free account.[4] Free[4]
Everything2 English General interest, users can submit articles on the topic of essentially anything Free
GNE English General interest articles are released under a GNU license. Formerly GNUpedia. Defunct
Gran Enciclopèdia Catalana Catalan General interest Free
Grand Larousse encyclopédique French General interest Free
Great Norwegian Encyclopedia Norwegian (Bokmål) General interest Free
Great Russian Encyclopedia Russian General interest Free
Great Soviet Encyclopedia Russian, English General interest, often from the former official Soviet viewpoint. Free
Hamichlol Hebrew, English General interest, designed for Haredim Free. Copyleft: mirror of Wikipedia content; copyright: original content.
Infogalactic English An encyclopedia created in response to the "SJW convergence" of Wikipedia. Free
Internetowa encyklopedia PWN Polish General interest Free
Interpedia English General interest, the first site to propose a free encyclopedia written by users Defunct
Enciklopedio Kalblanda Esperanto General interest. The first online Esperanto encyclopedia Defunct (merged into Esperanto Wikipedia)
Krugosvet (Rus. Кругосвет) Russian General interest. Free
Marathi Vishwakosh Marathi General Interest Free
Marefa Arabic General interest Free
Mawdoo3 Arabic General interest Free
Metapedia Hungarian, German, English, Spanish, Swedish, Romanian, Estonian, French, Slovenian, Czech, Portuguese, Norwegian, Danish, Greek, Dutch White nationalist encyclopedia written from a Eurocentric point of view. Controversial due to the highly politically incorrect content of many of its articles. Free
Meyers Konversations-Lexikon 4. ed. 1888 - 1892 German General interest Free
Nationalencyklopedin Swedish General interest, comprehensive Subscription
New World Encyclopedia English Project of the Unification movement Free. Wikipedia fork.
Nupedia English Combined with GNUpedia Defunct
Open Site English Categorized community-built encyclopedia, inspired by the Open Directory Project No longer an encyclopedia
Probert Encyclopaedia English General interest Defunct
Proleksis Encyclopedia Croatian General and national encyclopedia Free with registration
Sarvavijnanakosam Malayalam General interest Free
Scholarpedia English Articles are written by scholars and peer-reviewed for accuracy Free
Superpedia Bahasa Indonesia, Sundanese, Javanese General interest Free Swedish A Swedish language wiki 2001–2009 Defunct
Tamil Encyclopedia Tamil General Interest Free
Treccani Italian General interest Free
Veropedia English, Dutch, Spanish Mirrors stable versions of selected English Wikipedia articles Defunct
WIEM Encyklopedia Polish General interest Free
WikiIslam Multilingual A wiki that is highly critical of Islam (politically correct: Islamophobic). Free
Wikipedia Various (see list here) General interest, wiki Free, copyleft
WikiSpooks English A wiki written from a truther and generally libertarian-leaning perspective. Free
Winkler Prins Dutch General interest, three different age levels Subscription
World Book Encyclopedia English General interest Subscription


Site Language Description Access
Australian Dictionary of Biography English Entries on notable Australians who have died Free
Croatian Biographical Lexicon Croatian Multi-volume biographical reference work on notable figures from Croatian history Free
Deutsche Biographie German Biographies on notable German speaking people Free
Dictionary of Canadian Biography English, French Entries on notable Canadians Free
Dictionary of Irish Architects English Biographical information on Irish architects from 1720 to 1940 Free
Kdo byl kdo Czech Biographies on notable Czech and Slovak people Free
Österreichisches Biographisches Lexikon 1815–1950 German Biographies on notable Austrians Free
Oxford Dictionary of National Biography English Comprehensive 66-volume reference work on notable figures from British history Subscription
Dictionary of New Zealand Biography English, Māori Entries on notable New Zealanders who have died Free
Dizionario Biografico degli Italiani Italian Biographical Dictionary of Italian People, published by the Istituto dell'Enciclopedia Italiana Treccani Free

Antiquities, arts, and literature

Site Language Description Access
Dictionary of Greek and Roman Antiquities English Incorporates text from the 19th century encyclopedia of the same name. Focuses on topics of cultural and historical Greek and Roman significance. Free
Dictionary of Greek and Roman Biography and Mythology English Focuses on topics dealing with Greek and Roman mythology and people Free
Dictionary of Greek and Roman Geography English Focuses on topic relating to Greek and Roman geography Free
Enciclopedia Dantesca Italian Devoted to Dante Alighieri and his time, by the Istituto dell'Enciclopedia Italiana Treccani Free
Encyclopedia Mythica English Contains articles on mythology, folklore, and religion Free
Harper's Dictionary of Classical Literature and Antiquities English Covers subjects of classical antiquity; text from 1898 Free
The History of Nordic Women's Literature English, Danish, Swedish Searchable online English-language version including many biographies Free
The Literary Encyclopedia English Literature related articles Subscription
Oxford Art Online English Visual art; formerly Grove Art Online and The Dictionary of Art. Originally published in 1996 as a 34-volume printed encyclopedia; offered online since 1998. Subscription[5]
SIKART English, German, French, Italian Biographical dictionary and database of Swiss visual art Free

Regional interest

Site Language Description Access
Austria-Forum German, English Online database of Austrian culture Free
Encyclopedia of Alabama English Articles on the state of Alabama Free
Encyclopedia of Arkansas English Project of the Central Arkansas Library System and is the only U.S. state encyclopedia sponsored by a public library Free
Banglapedia Bengali, English Bangladesh-related topics Free
Chalo Chatu English Collaborative online encyclopedia hosted by Chalochatu Foundation. Features comprehensive articles on Zambian culture and history, etc. Free
Dictionary of Sydney English Articles on the history and culture of Sydney, Australia Free
Encyclopaedia of Islam, 3rd edition English About the Islamic world, not a Muslim encyclopaedia Subscription
Encyclopædia Iranica English, plans for a future Persian version Topics on Iranology and the influence of the Iranian peoples throughout history Free
Encyclopedia of Korean Culture Korean Korea-related topics Free
Encyclopedia of Ukraine English and Ukrainian Ukraine related articles Free
Gazetteer for Scotland English Articles on the geography and locations of Scotland Free
Handbook of Texas English Articles on the U.S. State of Texas Free
Historical Dictionary of Switzerland French, German and Italian Articles on the history of Switzerland. Free (without illustrations)
HistoryLink English Articles pertaining to Washington state history Free
Kodansha Encyclopedia of Japan English Comprehensive articles on Japanese arts and culture, history and politics, etc. Subscription
MNopedia English Published by the Minnesota Historical Society Free
New Georgia Encyclopedia English Articles on the U.S. state Georgia Free
The Oregon Encyclopedia English Articles pertaining to Oregon Free
Panyathai Thai, limited English General interest. Designed to honor the Thai king Bhumibol Adulyadej Free
Te Ara: The Encyclopedia of New Zealand English, Māori The New Zealand government site with content on the country Free
Vienna History Wiki German Articles on the history of the city of Vienna, Austria. Includes 31,000 entries from the 2nd edition of Historisches Lexikon Wien. Free

Pop culture and fiction

Site Language Description Access
A Wiki of Ice and Fire Multilingual A wiki about George R. R. Martin's A Song of Ice and Fire and HBO's Game of Thrones Free
Don Markstein's Toonopedia English Focuses on articles pertaining to print and animated cartoons Free
Encyclopedia Dramatica English Contains humorous articles, especially those related or relevant to contemporary Internet culture. Free
Emojipedia English Emoji Free
Fringepedia English Contains articles pertaining to the American television drama Fringe. Free
h2g2 English Collection of sometimes humorous encyclopedia articles, based on Douglas Adams's The Hitchhiker's Guide to the Galaxy. Free
Heroes Wiki English, Dutch, French, German, Hebrew, Italian, Portuguese, Spanish, Swedish, Turkish Contains articles pertaining to the American television drama Heroes. Free
Know Your Meme English A website and video series which uses wiki software to document various Internet memes and other online phenomena, such as viral videos, image macros, catchphrases, and internet celebrities.[6][7] Free
Lostpedia English, German, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Chinese Contains articles pertaining to the hit drama Lost Free
Memory Alpha English, Bulgarian, Chinese, Czech, Dutch, Esperanto, French, German, Polish, Portuguese, Russian, Serbian, Spanish, Swedish Articles about Star Trek Free
The Encyclopedia of Science Fiction English Authors, books, films of SF Free
The Rocklopedia Fakebandica English Articles on fake bands from popular entertainment Free
Supernatural Wiki English Contains articles pertaining to the American television drama Supernatural. Free
TV Tropes English, German, Esperanto, Spanish, French, Norwegian, Finnish, Swedish, Al Bhed, Quenya Articles related to the devices and conventions that a fiction writer can reasonably rely on as being present in the audience members' minds and expectations Free
Uncyclopedia Multilingual Humour encyclopedia Free
Fallout Wiki English, German, Spanish, Bulgarian, Finnish, French, Georgian, Hungarian, Italian, Japanese, Korean, Lithuanian, Dutch, Norwegian, Polish, Portuguese, Russian, Swedish, Turkish, Chinese Fallout-related articles Free
Wookieepedia English, German, Spanish, Bulgarian, Danish, Finnish, French, Croatian, Hungarian, Italian, Japanese, Dutch, Norwegian, Polish, Portuguese, Russian, Romanian, Slovak, Slovene, Swedish, Chinese Star Wars-related articles Free
WoWWiki / Wowpedia English, German, Spanish, French, Czech, Danish, Greek, Persian, Finnish, Hebrew, Hungarian, Icelandic, Italian, Lithuanian, Latvian, Dutch, Nynorsk, Bokmål, Polish, Portuguese, Brazilian Portuguese, Russian, Slovak, Korean, Japanese, Chinese World of Warcraft-related articles Free
Stargate fandom/Stargate Wiki[8] English Stargate-related articles Free


Site Language Description Access
Encyclopedia of Mathematics English Encompasses articles on the topic of mathematics Free
Encyclopedia of Triangle Centers English Information about ten thousands of triangle centers, including coordinates, operations, incidence, equations, etc. Free
EqWorld English, Russian Articles on mathematical equations Free
MathWorld English Articles on a wide variety of mathematics related topics Free
On-Line Encyclopedia of Integer Sequences English Information about hundred thousands of integer sequences, including formulas, related sequences, programs, etc. Free/CC BY-NC 3.0
PlanetMath English Mathematics related topics and articles Free/GNU
nLab English Category theory and related topics Free


Site Language Description Access
IMDb English, German, French, Hungarian,
Italian, Polish, Portuguese,
Romanian, Turkish and Spanish
Information related to world films, television programs,
home videos and video games,
and internet streams


Site Language Description Access
Bulgarian Rock Archives Bulgarian Archives of Bulgarian rock bands
Encyclopaedia Metallum English Archives of heavy metal bands Free
Grove Music Online English Mostly on historic and classical music worldwide; in print form is The New Grove Dictionary of Music and Musicians, which has 20 printed volumes, and was first published in 1980 Subscription[5]
MOOMA Hebrew Articles on Israeli music and musical artists Free


Site Language Description Access Founder
Internet Encyclopedia of Philosophy English Philosophy related articles Free James Fieser
Marxists Internet Archive multi-lingual Topics related to the study of Marxism Free Zodiac (internet user)
RationalWiki[9] English Skeptical interests[10] Free RationalMedia Foundation
Routledge Encyclopedia of Philosophy English Philosophy articles Subscription Edward Craig
Stanford Encyclopedia of Philosophy English Philosophy subjects Free Edward Zalta

Politics and history

Site Language Description Access
Ancient History Encyclopedia English Historical encyclopedia targeted at students and the general public. Reviewed by editorial team, not a Wiki. Free
Ballotpedia English American politics, elections, and public policy Free
The Concise Encyclopedia of Economics English Economics – part of the Library of Economics and Liberty. Edited by David R. Henderson Free
Cyclopaedia of Political Science, Political Economy, and the Political History of the United States English Articles pertaining to science, economics, and American authors. The 1899 edition is available online Free
Diplopedia English US State Department internal encyclopedic wiki, available for diplomats and overseas US agents to use Access only through the State Department
dKosopedia English Political encyclopedia written from a progressive/liberal Democratic point of view Free
Encyclopedia Titanica English Encyclopedia related to the building and sinking of the RMS Titanic Free
Encyclopedia of World Problems and Human Potential English Presents articles on perceived human problems Free
Gapminder English Historical global trends in health, poverty, and demographics Free English Gay, lesbian, bisexual, transgender, and queer culture. Free
HistoryLink English Articles on the history of Washington state Free
Holocaust Encyclopedia English, Arabic, Persian, French, Spanish Holocaust-related articles, published by the United States Holocaust Memorial Museum Free
JurisPedia Arabic, English, Chinese, French, German, Spanish, Dutch An academic encyclopedia on the concepts of law Free
Our World in Data English Global trends on economic growth, poverty, health, war, violence, education and demographics Free

Religion and theology

Site Language Description Access
Boston Collaborative Encyclopedia of Western Theology English Articles on Western Christian theology Free, public domain
Catholic Encyclopedia English Topics relating to Catholicism, text from 1913 and 1922 Free, public domain
Christian Cyclopedia English Collection of historical and theological information Free
Easton's Bible Dictionary English Articles on Christianity and theology Free, public domain
Encyclopaedia Biblica English Contains articles pertaining to "the Literary, Political and Religious History, the Archaeology, Geography, and Natural History of the Bible" Free
Encyclopedia of Mormonism English Articles by Mormon academics on history and doctrine of The Church of Jesus Christ of Latter-day Saints (LDS Church). Free
Global Anabaptist Mennonite Encyclopedia Online English Topics relating to Anabaptism and Mennonites Free
The Jewish Encyclopedia English Topics relating to Judaism Free
Jewish Virtual Library English Portals to essential Jewish topics Free
Punjabipedia Punjabi Entries on Sikhism Subscription
Schaff–Herzog Encyclopedia of Religious Knowledge English Christian, published 1908–1914 Free, public domain

Science and technology

Site Language Description Access
Encyclopedia Astronautica English Contains articles on the subject of space exploration and astronomy Free
Encyclopedia of Earth English Articles on the Earth and its ecosystems Free
Encyclopedia of Science English A-to-Z of science (and technology, mathematics, philosophy, etc.) maintained and updated daily by astronomer and author David Darling Free
Engineering and Technology History Wiki English The history of technology, a partnership between the United Engineering Foundation, and the AIChE, AIME, ASCE, ASME, IEEE, SPE, and SWE Free
Free On-line Dictionary of Computing English Computing and related subjects Free
Glottopedia English Linguistics Free
Javapedia English Coverage of all topics related to the Java platform Free
Omniglot English Covers languages and writing systems. Free
RP Photonics Encyclopedia English Laser technology, photonics, and related areas such as optical fibers and ultrashort pulses. Free
ScienceWorld English Covers astronomy, scientific biography, chemistry, and physics. Like MathWorld, it is edited by Eric Weisstein. Free

Life sciences

Site Language Description Access
Animal Diversity Web English Student wiki-type database at the University of Michigan of animal natural history, distribution, classification, and conservation biology. Free
APpedia Chinese Contains articles on the subject of general animal protection Free
ARKive English Visual and audio recordings of the world's species Defunct
Encyclopedia of Life English, French Seeks to categorize all 1.8 million known species on the planet Free
Encyclopedia of Life Sciences English Biology related articles Subscription
Encyclopedia of Life Support Systems English Articles about the natural and social sciences Subscription
Erowid English Information about psychoactive substances Free
FishBase English, Spanish, Portuguese, French, German, Italian, Dutch,
Chinese (Simplified Han), Chinese (Traditional Han), Greek,
Swedish, Russian, Persian, Vietnamese, Thai, Lao, Hindi, Bengali
Articles on fish species Free
Flora Europaea English Covers different plant species Free
Ganfyd English Medical content Defunct
King Abdullah Bin Abdulaziz Arabic Health Encyclopedia Arabic, English Health encyclopedia Free
Palaeos English Covers palaeontology Free
World Flora Online English Covers the world's plant species Free
Radiopaedia English Articles on medical imaging used in radiology and radiography Free
Wikispecies English Seeks to create a catalogue of all living things Free
ZipcodeZoo English Encyclopedia of all living things Free

See also


  1. Anderson, Nate (2007-03-05). "Conservapedia hopes to "fix" Wikipedia's "liberal bias"". Retrieved 2019-04-05.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. Stöcker, Christian (2007-03-06). "The Lord's Encyclopedia". Retrieved 2019-06-08.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. 3.0 3.1 James, Andrea (12 June 2017). "Can Everipedia remake collaborative encyclopedias to be inclusive and enjoyable?". Boing Boing.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. 4.0 4.1 Lee, Elaine (22 March 2016). "Wharton dropout creates Wikipedia alternative alongside Rap Genius co-founder". The Daily Pennsylvanian.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  5. 5.0 5.1 In UK, can normally be accessed free via a local library
  6. Bruenig, Elizabeth (11 August 2017). "Why is millennial humor so weird?". Washington Post.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  7. Manning, Allee (31 December 2016). "The Darkest, Dankest Year In Memes". Vocativ.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. Stargate Wiki
  9. Charles Davis (May 30, 2018). "Sloppy Sourcing Plagues". The Newsweek Daily Beast Company. Retrieved June 24, 2019.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  10. Keeler, Mary; Johnson, Josh; Majumdar, Arun. "Crowdsourced Knowledge: Peril and Promise for Complex Knowledge Systems" (PDF). p. 4. Archived from the original (PDF) on April 13, 2015. Retrieved January 17, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

External links