Site |
Language |
Description |
Access |
Baidu Baike |
Chinese |
Collaborative online encyclopedia hosted by the major Chinese search engine Baidu |
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 Wikipedia) |
Defunct |
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 |
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 Italiana di scienze, lettere ed arti |
Italian |
General interest. Published by the Istituto dell'Enciclopedia Italiana Treccani |
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 |
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 Soviet Encyclopedia |
Russian, English |
General interest, often from the former official Soviet viewpoint. |
Free |
Hudong |
Chinese |
General interest. China's largest wiki |
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) |
Keyinpedia |
Chinese |
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, 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 |
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 |
Store norske leksikon |
Norwegian (Bokmål) |
General interest |
Free |
Susning.nu |
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 |
Veropedia |
English, Dutch, Spanish |
Mirrors stable versions of selected English Wikipedia articles |
Defunct |
Vikidia |
English, French, Italian, Russian, Spanish |
Articles designed for children ages 8–13 |
Free |
WIEM Encyklopedia |
Polish |
General interest |
Free |
Wikipedia |
Various (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 |
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 |
Banglapedia |
Bengali, English |
Bangladesh-related topics |
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 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) |
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 |
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 |
Site |
Language |
Description |
Access |
Don Markstein's Toonopedia |
English |
Focuses on articles pertaining to print and animated cartoons |
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 |
Uncyclopedia |
Multilingual |
Humour encyclopedia |
Free |
The Vault |
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 |
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 |
Site |
Language |
Description |
Access |
Ballotpedia |
English |
American politics, elections, and public policy |
Free |
Cyclopaedia of Political Science |
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 |
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 |
Gapminder |
English |
Historical global trends in health, poverty, and demographics |
Free |
glbtq.com |
English |
Gay, lesbian, bisexual, trangender, 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 |
OurWorldInData |
English |
Global trends on economic growth, poverty, health, war, violence, education and demographics |
Free |
Site |
Language |
Description |
Access |
Appropedia |
English |
Collaborative systems for sustainability, poverty reduction and international development |
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 Laser Physics and Technology |
English |
Laser technology, photonics, and related areas such as optical fibers and ultrashort pulses. |
Free |
Encyclopedia of Science |
English |
A-to-Z of science (and technology, mathematics, philosophy, etc.) maintained and updated daily by astronomer/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 |
Javapedia |
English |
Coverage of all topics related to the Java platform |
Free |
ScienceWorld |
English |
Covers astronomy, scientific biography, chemistry, and physics. Like MathWorld, it is edited by Eric Weisstein. |
Free |
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 |
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 |
Ganfyd |
English |
Medical content |
Free |
King Abdullah Abdul Aziz Health Encyclopedia |
Arabic, English |
Health encyclopedia |
Free |
Palaeos |
English |
Covers palaeontology |
Free |
The Plant List |
English |
Covers Flora |
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 |