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List of online encyclopedias

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Title: List of online encyclopedias  
Author: World Heritage Encyclopedia
Language: English
Subject: Lists of websites, Tip of the day/August 18, Boston Collaborative Encyclopedia of Western Theology, ProQuest NewsStand, Macroscopic Observatory
Collection: Internet Encyclopedias, Lists of Websites, Wiki Communities
Publisher: World Heritage Encyclopedia

List of online encyclopedias

This is a list of notable online encyclopedias that are accessible on the Internet.


  • General references 1
  • Biography 2
  • Antiquities, arts, and literature 3
  • Culture and country-specific 4
  • Pop culture and fiction 5
  • Mathematics 6
  • Music 7
  • Philosophy 8
  • Politics and history 9
  • Religion and theology 10
  • Science 11
    • Biology-Life science 11.1
    • Computer 11.2
    • Medicine and surgery 11.3
  • See also 12
  • References 13
  • External links 14

General references

Site Language Description


Appropedia English Collaborative systems for sustainability, poverty reduction and international development Free
Baidu Baike Chinese Collaborative online encyclopedia hosted by the major Chinese search engine Baidu Free
Banglapedia Bengali, English General interest Free
The Canadian Encyclopedia English, French General interest (original content of the hard copy Canadian Encyclopedia) Free
Citizendium English General interest, wiki Free
Columbia Encyclopedia English General interest Free
Conservapedia English American conservative and Christian interests Free
Crnogorska Enciklopedija Montenegrin General interest (hopes to encourage a Montenegrin language WorldHeritage) Defunct
Den Store Danske Encyklopædi Danish General interest Free
Digital Universe English Collection of articles on educational, cultural, and scientific topics Free
Diplopedia English US State Department internal encyclopedic wiki, available for diplomats and overseas US agents to use Access only through the State Department
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 –1911 Edition English General interest Public domain: completely free access from several online sources
Encyclopedia of China Chinese General interest Subscription
Encyklopedia Internautica Polish General interest Free
Enciclopedia Libre Spanish Fork of the Spanish WorldHeritage, using wiki software, released under the GFDL Free
Enciclopedia Italiana di scienze, lettere ed arti Italian General interest. Published by the Istituto dell'Enciclopedia Italiana Treccani Free
Encyclopedia Sindhiana Sindhi General interest Limited free access and features
Encyclopædia Universalis French General interest encyclopedia published by Encyclopædia Britannica Subscription
Everything2 English General interest, users can submit articles on the topic of essentially anything Free
GNUPedia English General interest articles are released under a GNU license Defunct
Gran Enciclopèdia Catalana Catalan General interest Free
Grand Larousse encyclopédique French General interest Free
Great Soviet Encyclopedia Russian, English General interest, often from the former official Soviet viewpoint. Free
Grolier Multimedia Encyclopedia English Targeted at the younger researcher, it contains the text of the Academic American Encyclopedia Subscription
Holocaust Encyclopedia English, Arabic, Persian, French, Spanish Holocaust-related articles Free
Hudong Chinese General interest. China's largest wiki Free
Infoplease English General interest 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 WorldHeritage)
Kdo byl kdo Czech Biographies on notable Czech and Slovak people Free
Keyinpedia Chinese General interest Free
King Abdulllah Abdul Aziz Health Encyclopedia Arabic, English Health encyclopedia Free
Knol English General interest Defunct
Wes Kussmaul English General interest with emphasis on science and the arts. First commercial online encyclopedia (1981–93). Subscription
Marathi Vishwakosh Marathi General Interest Free
Marefa Arabic General interest Free
Metapedia Hungarian, German, English, Spanish, Swedish, Romanian, Estonian, French, Slovenian, Czech, Portuguese, Norwegian, Croatian, Danish, Greek, Dutch Far right-wing, white nationalist and neo nazi encyclopedia Free
Meyers Konversations-Lexikon 4. ed. 1888 - 1892 German General interest Free
Nationalencyklopedin Swedish General interest, comprehensive Subscription
New World Encyclopedia English General interest - Affiliated with Unification Church; in part, selects and rewrites certain WorldHeritage articles to reflect Unification Church values. Free
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 Free
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
Store norske leksikon Norwegian (Bokmål) General interest Free Swedish A Swedish language wiki 2001–2009 Defunct
Tamil Encyclopedia Tamil General Interest Free
Từ điển Bách khoa toàn thư Việt Nam Vietnamese General interest. State-sponsored encyclopedia. Free
Uncyclopedia Multilingual Humour encyclopedia Free
Veropedia English, Dutch, Spanish Mirrors stable versions of selected English WorldHeritage articles Defunct
Vikidia French, Spanish Articles designed for children ages 8–13 Free
WIEM Encyklopedia Polish General interest Free
WorldHeritage See list here General interest, wiki Free, copyleft
Winkler Prins Dutch General interest, three different age levels Subscription
World Book Encyclopedia English General interest Subscription
Wikinfo English Holds multiple articles on subjects from different points of view Defunct


Site Language Description Access
Australian Dictionary of Biography English Entries on notable Australians who have died Free
Dictionary of Canadian Biography English, French Entries on notable Canadians Free
Dictionary of Greek and Roman Biography and Mythology English Focuses on topics dealing with Greek and Roman mythology and people Free
Oxford Dictionary of National Biography English Comprehensive 66-volume reference work on notable dead figures from British history in every profession from politics to art Subscription[1]
Dictionary of National Biography English The original 19th century version of the above. Available free in a variety of places, either as transcriptions or images of the printed volumes Free (see left)
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 English Entries on notable homosexuals Free
MacTutor History of Mathematics archive English Biographies of mathematicians Free
MyWikiBiz English A wiki encyclopedia that allows people and enterprises to write about themselves Free
Who's Who English General biographies, mainly of British people Subscription

Antiquities, arts, and literature

Site Language Description Access
A 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
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
Grove Art Online English Visual art; formerly the "The Dictionary of Art" but usually known as The Grove Dictionary of Art, which had 34 printed volumes, published in 1996 Subscription[2]
Harpers Dictionary of Classical Antiquities English Covers subjects of classical antiquity Free
The Literary Encyclopedia English Literature related articles Subscription
SIKART English, German, French, Italian Biographical dictionary and database of Swiss visual art Free

Culture and country-specific

Site Language Description Access
Aeiou Encyclopedia German, English Online database of Austrian culture Free
Encyclopedia of Alabama English Articles on the state of Alabama Free
Encyclopedia of Arkansas English A project of the Central Arkansas Library System and is the only U.S. state encyclopedia sponsored by a public library Free
Dictionary of Sydney English Articles on the history and culture of Sydney, Australia Free
Dictionary of Greek and Roman Geography English Focuses on topic relating to Greek and Roman geography Free
Encyclopædia Iranica English, plans for a future Persian version Topics on the influence of the Iranian peoples throughout history Free
Encyclopedia of Korean Culture Korean Korea-related topics Free
Gazetteer for Scotland English Articles on the geography and locations of Scotland Free
Jewish Encyclopedia English The state of Judaism and the Jews (as of 1901) Free, Public domain
Jewish Virtual Library English Portals to essential Jewish topics Free
Kodansha Encyclopedia of Japan English Comprehensive articles on Japanese arts and culture, history and politics, etc. Subscription
Looklex Encyclopaedia English (based in Norway) Middle East and North African topics (known as CiAS 1996-1999) Free
New Georgia Encyclopedia English Articles on the U.S. state Georgia Free
Oregon Blue Book English Articles pertaining to Oregon 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
Encyclopedia of Ukraine English and Ukrainian Ukraine related articles Free
Encyclopedia Virginia English Articles on Virginia's history and culture Free
Yeminlisozluk Turkish English-Turkish sentence-based corpus-encyclopedia of general interest (Sözlük) Free

Pop culture and fiction

Site Language Description Access
Bulbapedia English Focuses on articles pertaining to Pokémon, including the Pokémon moves, TV shows and movies. Free
Don Markstein's Toonopedia English Focuses on articles pertaining to print and animated cartoons Free
Encyclopedia Dramatica English Satirical NSFW wiki mostly covering Internet memes; claims to be based on the Devil's Dictionary. 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
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
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
The Vault English, German, Spanish, Bulgarian, 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 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
Wowpedia English, Spanish, French, Czech, Russian World of Warcraft and Warcraft Universe -related articles Free


Site Language Description Access
Cut-the-knot English Mathematics related topics Free
Encyclopedia of Mathematics English Encompasses articles on the topic of mathematics Free
EqWorld English, Russian Articles on mathematical equations Free
MathWorld English Articles on a wide variety of math related topics Free
On-Line Encyclopedia of Integer Sequences English Encyclopedia of number sequences (what is next term after 1,2,4,9,20,48,115, ..., say?) Free
PlanetMath English Math related topics and articles Free/GNU
The QED Project English A project to establish a "distributed, computerized repository that rigorously represents all important, established mathematical knowledge." Free


Site Language Description Access
Allmusic English Music-related topics Retail sites
Discogs English Database of audio releases Free
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[3]
LyricWiki English Encyclopedic database of song lyrics Free
MOOMA Hebrew Articles on Israeli music and musical artists Free
MusicBrainz English Database of audio albums Free
MusicMight English Bio- and discographies of rock bands Free
New Gibraltar Encyclopedia of Progressive Rock English Vast progressive rock database of bios, news and reviews Free
Rock in China English Encyclopedia on Chinese contemporary underground music (rock, punk, metal, jazz, hiphop, etc.) Free


Site Language Description Access
Encyclopedia of Marxism multi-lingual Topics related to the study of Marxism Free
Internet Encyclopedia of Philosophy English Philosophy related articles Free
Routledge Encyclopedia of Philosophy English Philosophy articles Subscription
Stanford Encyclopedia of Philosophy English Philosophy subjects Free

Politics and history

Site Language Description Access
Campaigns Wikia English Political issues and campaigns Free
Congresspedia English Seeks to improve on public information through articles about US Congress specifics Free
Cyclopaedia of Political Science English Articles pertaining to science, economics, and American authors. The 1899 edition is available online Free
dKosopedia English A political encyclopedia written from a left/progressive/liberal/Democratic point of view Free
Encyclopedia of World Problems and Human Potential English Presents articles on perceived human problems Free
HistoryLink English Articles on the history of Washington State Free
JurisPedia Arabic, English, Chinese, French, German, Spanish, Dutch An academic encyclopedia on the concepts of law 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 Free, Public domain
Christian Cyclopedia English A 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
Jewish Encyclopedia English Topics relating to Judaism Free
New Advent English Articles on Catholicism and apologetics Free
Punjabipedia Punjabi Entries on Sikhism


Site Language Description Access
APpedia Chinese Contains articles on the subject of general animal protection Free
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 on a daily basis by astronomer/author David Darling Free
ScienceWorld English Covers astronomy, scientific biography, chemistry, and physics. Like MathWorld, it is edited by Eric Weisstein. Free
Navipedia English The reference for Global Navigation Satellite Systems. Free

Biology-Life science

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
ARKive English Visual and audio recordings of the world's species Free
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
Macroscopic Observatory English Covers Flora and Fauna Free
Palaeos English Covers palaeontology Free
The Plant List English Covers Flora Free
Wikispecies English Seeks to create a catalogue of all living things Free


Site Language Description Access
Javapedia English Coverage of all topics related to the Java platform Free

Medicine and surgery

At least 70 online medical wiki encyclopedias have been created.[4] Some include:
Site Language Description Access
Ganfyd English Medical content Free
Medpedia (defunct) English Medical content Free
Radiopaedia English Articles on medical imaging used in radiology and radiography Free
WikEM English Emergency medicine content Free

See also


  1. ^ In UK, can normally be accessed free via a local library
  2. ^ In UK, can normally be accessed free via a local library
  3. ^ In UK, can normally be accessed free via a local library
  4. ^ Heilman JM, Kemmann E, Bonert M, et al. (2011). "WorldHeritage: a key tool for global public health promotion". Journal of Medical Internet Research 13 (1): e14.  

External links

  • , May 3, 2009The New York Times"Encyclopedic Knowledge, Then vs. Now",
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