List of online encyclopedias
This is alist of well-known online encyclopediasthat are accessible or formerly accessible on theInternet.
The largestonline encyclopediasare general reference works, though there are also many specialized ones. Some online encyclopedias are editions of a print encyclopedia, such asEncyclopædia Britannica,whereas others have always existed online, such asWikipedia.
General reference[edit]
| Name | Language | Description | Status | Access | Content license | Fork of | Merged with |
|---|---|---|---|---|---|---|---|
| Wikipedia | Various (see listhere) | General interest,wiki | Active | Free | CC BY-SA 4.0, GFDL | None | None |
| Nupedia | English | Combined with GNUpedia | Defunct | None | GFDL 1.1 or later | None | None |
| Interpedia | English | General interest, the first site to propose a free encyclopedia written by users | Defunct | None | Unknown | Free | None |
| Everipedia | English[1] | General interest | Read-only (archived) | Free[2] | CC BY 4.0 | Wikipedia | None |
| Citizendium | English | General interest,wiki | Active | Free,copyleft | CC BY NC SA 3.0 | None | None |
| Conservapedia[3][4] | English | American conservativeandChristianinterests | Active | Free | Unknown | None | None |
| Scholarpedia | English | Articles are written by scholars andpeer-reviewedfor accuracy | Active | Free | CC BY NC SA 3.0 | None | None |
| Encyclopædia Britannica | English | General interest | Active | Limited free access and features,subscriptionfor full access | Unknown | None | None |
| Baidu Baike | Chinese | Collaborative online encyclopedia hosted by the major Chinese search engine companyBaidu | Active | Free | Unknown | None | None |
| Enciklopedio Kalblanda | Esperanto | General interest. The first online encyclopedia inEsperanto | Defunct | None | CC BY SA 3.0, GFDL | None | Esperanto Wikipedia |
| EcuRed | Spanish | General interest. Cuban | Active | Free | None | None | None |
| Encyclopedia.com | English | General interest | Active | Free | None | None | None |
| Baike.com | Chinese | General interest. China's largest wiki | Active | Free | Unknown | None | None |
| Brockhaus Enzyklopädie | German | General interest | Active | Limited free access and features,subscriptionfor full access | Unknown | None | None |
| Columbia Encyclopedia | English | General interest | Active | Free[5] | Unknown | None | None |
| Crnogorska Enciklopedija | Montenegrin | General interest (hopes to encourage a Montenegrin language Wikipedia) | Defunct | None | Unknown | None | None |
| Croatian Encyclopedia | Croatian | General and national encyclopedia | Active | Free | Unknown | None | None |
| Den Store Danske Encyklopædi | Danish | General interest | Active | Free | Unknown | None | None |
| Digital Universe | English | Collection of articles on educational, cultural, and scientific topics | Defunct | Free | Unknown | None | None |
| Doosan Encyclopedia | Korean | General interest | Active | Free | Unknown | None | None |
| Ekşi Sözlük | Turkish | General interest | Active | Free | Unknown | None | None |
| Encarta(1993–2009) | English | General interest | Defunct | None | Unknown | None | None |
| Enciclonet | Spanish | General interest | Active | Limited free access and features,subscriptionfor full access | None | None | None |
| Encyclopædia Britannica11th Edition(1910–11) | English | General interest | Defunct | Public domain: completely free access from several online sources | None | None | None |
| Encyclopedia of China | Chinese | General interest | Active | Subscription | Unknown | None | None |
| Từ điển bách khoa Việt Nam | Vietnamese | General interest. State-sponsored encyclopedia. | Active | Free | Unknown | None | None |
| Encyklopedia Internautica | Polish | General interest | Active | Free | Unknown | None | None |
| Enciclopedia Libre Universal en Español | Spanish | Fork of the Spanish Wikipedia, usingwikisoftware, released under theGFDL | Active | Free,copyleft | Unknown | None | None |
| Encyclopædia Universalis | French | General interest encyclopedia published byEncyclopædia Britannica | Active | Subscription | Unknown | None | None |
| Everything2 | English | General interest, users can submit articles on the topic of essentially anything | Active | Free | None | None | None |
| The Free Dictionary | English, Spanish, German, French, Italian, Chinese, Portuguese, Dutch, Norwegian, Greek, Arabic, Polish, Turkish, Russian | TheFreeDictionary's Encyclopedia draws from various sources, includingThe Columbia Encyclopedia. | Active | Free | None | None | None |
| GNE | English | General interest articles are released under a GNU license. FormerlyGNUpedia. | Defunct | None | Unknown | None | None |
| Gran Enciclopèdia Catalana | Catalan | General interest | Active | Free | Unknown | None | None |
| Grand Larousse encyclopédique | French | General interest | Active | Free | None | None | None |
| Great Norwegian Encyclopedia | Norwegian (Bokmål) | General interest | Active | Free | Unknown | None | None |
| Great Russian Encyclopedia | Russian | General interest | Active | Free | Unknown | None | None |
| Great Soviet Encyclopedia | Russian, English | General interest, often from the former official Soviet viewpoint. | Active | Free | Unknown | None | None |
| Hamichlol | Hebrew, English | General interest, designed forHaredim | Active | Free.Copyleft:mirror of Wikipedia content; copyright: original content. | Unknown | Wikipedia | None |
| Internetowa encyklopedia PWN | Polish | General interest | Active | Free | Unknown | None | None |
| Krugosvet(Rus. Кругосвет) | Russian | General interest. | Active | Free | Unknown | None | None |
| Marathi Vishwakosh | Marathi | General Interest | Active | Free | Unknown | None | None |
| Marefa | Arabic | General interest | Active | Free | Unknown | None | None |
| Mawdoo3 | Arabic | General interest | Active | Free | Unknown | None | None |
| Metapedia | Hungarian,German, English, Spanish,Swedish,Romanian,Estonian,French,Slovenian,Czech,Portuguese,Norwegian,Danish,Greek,Dutch | Far right-wing,white nationalistandneo naziencyclopedia[6][7][8][9][10][11] | Active | Free | Unknown | None | None |
| Meyers Konversations-Lexikon 4. ed. 1888 - 1892 | German | General interest | Defunct | access from several online sources | Unknown | None | None |
| Namuwiki | Korean | General interest | Active | Free | CC-BY-NC-SA 2.0 KR | Rigveda Wiki | None |
| Nationalencyklopedin | Swedish | General interest, comprehensive | Active | Subscription | Unknown | None | None |
| New World Encyclopedia | English | Project of theUnification movement | Active | Free. Wikipediafork. | CC BY SA 3.0, GFDL | Wikipedia | None |
| Oeconomische Encyclopädie(1773-1858) | German | General interest | Defunct | Public domain: completely free access from several online sources | None | None | None |
| Oxford Bibliographies Online | English | Active | Free | Unknown | None | None | |
| Probert Encyclopaedia | English | General interest | Defunct | None | Unknown | None | None |
| Proleksis Encyclopedia | Croatian | General and national encyclopedia | Active | Free with registration | Unknown | None | None |
| Ruwiki | Russian | General interest, forked from Russian Wikipedia during theRusso-Ukrainian war | Active | Free | CC BY-SA 4.0 | Russian Wikipedia | None |
| Rigveda Wiki | Korean | General interest | Active | Free | CC-BY-NC-SA 2.0 KR | None | None |
| Sarvavijnanakosam | Malayalam | General interest | Active | Free | Unknown | None | None |
| Sogou Baike | Chinese | Collaborative online encyclopedia hosted by the major Chinese search engine companySogou | Active | Free | Unknown | None | None |
| Superpedia | Indonesian,Sundanese,Javanese | General interest | Active | Free | Unknown | None | None |
| Susning.nu(2001–09) | Swedish | A Swedish language wiki | Defunct | None | Unknown | None | None |
| Tamil Encyclopedia | Tamil | General Interest | Active | Free | Unknown | None | None |
| Treccani | Italian | General interest | Active | Free | None | None | None |
| Veropedia | English,Dutch,Spanish | Mirrors stable versions of selectedEnglish Wikipediaarticles | Defunct | None | Unknown | None | None |
| Visuotinė lietuvių enciklopedija | Lithuanian | General interest | Active | Free | Unknown | None | None |
| WIEM Encyklopedia | Polish | General interest | Active | Free | Unknown | None | None |
| Winkler Prins | Dutch | General interest, three different age levels | Active | Subscription | Unknown | None | None |
| World Book Encyclopedia | English | General interest | Active | Subscription | Unknown | None | None |
| Klexikon | German | General interest for children aged six to twelve years | Active | Free | CC BY-SA 3.0 | None | None |
Biography[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Afro-American Encyclopaedia | English | Classic historical encyclopedia (1895) | Free |
| 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 |
| American National Biography | English | Biographies of notable Americans | Subscription |
| Dictionary of Irish Architects | English | Biographical information on Irish architects from 1720 to 1940 | Free |
| Kdo byl kdo | Czech | Biographies on notableCzechandSlovak 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 theIstituto dell'Enciclopedia Italiana Treccani | Free |
Antiquities, arts, and literature[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Dictionary of Art Historians | English | Covers topics relating toart historians,art critics,and their dictionaries | Free |
| 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 andRomansignificance. | 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 topics relating to Greek and Roman geography | Free |
| Enciclopedia Dantesca | Italian | Devoted toDante Alighieriand his time, by theIstituto dell'Enciclopedia Italiana Treccani | Free |
| The Encyclopedia of Fantasy | English | [12] | Free |
| Encyclopedia Mythica | English | Covers folklore, mythology, and religion.[13] | 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 |
| Kindlers Literatur Lexikon | German | Online-only since 2009, covers works and writers ofworld literature | Subscription |
| The Literary Encyclopedia | English | Literature related articles | Subscription |
| Oxford Art Online | English | Visual art; formerlyGrove Art OnlineandThe Dictionary of Art.Originally published in 1996 as a 34-volume printed encyclopedia; offered online since 1998. | Subscription[14] |
| SIKART | English, German, French, Italian | Biographical dictionary and database of Swiss visual art | Free |
Regional interest[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Agropedia | Covers topics related toagriculture in India | ||
| Austria-Forum | German, English | Online database of Austrian culture | Free |
| Banglapedia | Bengali,English | Bangladesh-related topics | Free |
| The Canadian Encyclopedia | English, French | General interest regardingCanadaandCanadiana(original content of the hard copyCanadian Encyclopedia) | Free |
| Chalo Chatu | English | Collaborative online encyclopedia hosted by Chalo Chatu Foundation featuring comprehensive articles on Zambiancultureandhistory,etc. | Free |
| Culinary Heritage of Switzerland | German, French, Italian, Romansh | Online encyclopedia of traditionalSwiss cuisineand produce.[15] | Free |
| DEDI | English,Slovene | Online encyclopedia of the natural andcultural heritageofSlovenia,operated by theSlovenian Academy of Sciences and ArtsScientific Research Center.[16] | Free |
| Dictionary of Sydney | English | Articles on the history and culture ofSydney, Australia | Free |
| Encyclopaedia of Islam,3rd edition | English | About theIslamic world,not a Muslim encyclopedia | Subscription |
| Encyclopædia Iranica | English, plans for a futurePersianversion | Topics onIranologyand the influence of theIranian peoplesthroughout history | Free |
| The Encyclopaedia of Korea[17] | English | Korea-related topics[18] | Free |
| Encyclopedia of Korean Culture | Korean | Korea-related topics | Free |
| Encyclopedia Sindhiana | Sindhi | General interest regardingSindh | Limited free access and features |
| Internet Encyclopedia of Ukraine | English | Ukraine,its history, people, geography, society, economy, and cultural heritage, based on the five-volume printEncyclopedia of Ukraine | Free |
| Gazetteer for Scotland | English | Articles on the geography and locations ofScotland | 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 onJapanese arts,culture,history,andpolitics,etc. | Subscription |
| Oslo byleksikon | Bokmål(Norwegian) | Online encyclopedia ofOslo,operated by theSociety for Oslo Byes Vel,with an emphasis on places, buildings and historical events.[19] | Free |
| Panyathai | Thai,limited English | General interest. Designed to honor the Thai kingBhumibol Adulyadej | Free |
| Sahapedia | English | Open encyclopedic resource on the arts, cultures, and histories of India.[20] | Free |
| Te Ara: The Encyclopedia of New Zealand | English,Māori | Site operated by theNew Zealand governmentregarding information about the country | Free |
| Vienna History Wiki | German | Articles on the history of the city ofVienna, Austria.Includes 31,000 entries from the 2nd edition ofHistorisches Lexikon Wien. | Free |
| Turkpidya | English, German, Danish, Spanish, French, Italian, Hungarian, Dutch, Portuguese, Romanian, Turkish, Croatian, Polish, Czech, Greek, Bulgarian, Russian, Serbian, Hebrew, Arabic, Persian, Japanese, and Korean. | Online encyclopedia aboutTurkeyandTurkic Nations | Free |
| Unam Wiki | Korean | Wiki with statedSouth Korean conservativeleanings.[21] | Free |
US-specific[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| 64 Parishes | English | Online encyclopedia of Louisiana, run by theLouisiana Endowment for the Humanities.[22] | Free |
| Encyclopedia of Alabama | English | Encyclopedia covering the state ofAlabama,sponsored by theAlabama Humanities Foundation. | Free |
| Encyclopedia of Appalachia | English | Dedicated to the region, people, culture, history, and geography ofAppalachia. | Defunct |
| Encyclopedia of Arkansas | English | Project of theCentral Arkansas Library Systemand is the only U.S. state encyclopedia sponsored by a public library | Free |
| Encyclopedia of Chicago | English | Free | |
| Encyclopedia Virginia | English | Encyclopedia funded by theVirginia Foundation for the HumanitiesandLibrary of Virginia,covering topics onVirginia | Free |
| Handbook of Texas | English | Articles on the U.S. State ofTexas | Free |
| HistoryLink | English | Articles aboutWashington statehistory | Free |
| MNopedia | English | Online encyclopedia aboutMinnesota,published by theMinnesota Historical Society.[23] | Free |
| NCPedia | English | Encyclopedia coordinated and managed by theNorth Carolina GovernmentandState Library of North Carolina,covering a broad spectrum of topics and resources aboutNorth Carolina.[24] | Free |
| New Georgia Encyclopedia | English | Articles on the U.S. stateGeorgia | Free |
| The Oregon Encyclopedia | English | Articles aboutOregon | Free |
| Tennessee Encyclopedia | English | Covers the state ofTennessee | Free |
Pop culture and fiction[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Don Markstein's Toonopedia | English | Focuses on articles about print and animated cartoons | Free |
| The Encyclopedia of Science Fiction | English | Authors, books, films of sci-fi. | Free |
| Emojipedia | English | Emoji | Free |
| Fringepedia | English | Contains articles about the American television dramaFringe. | Free |
| h2g2 | English | Collection of sometimes humorous encyclopedia articles, based on Douglas Adams'sThe 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 dramaHeroes. | Free |
| Know Your Meme | English | A website and video series which uses wiki software to document variousInternet memesand other online phenomena, such asviral videos,image macros,catchphrases,andinternet celebrities.[25][26] | Free |
| Lostpedia | English, German, Spanish, French, Italian, Japanese,Dutch,Polish,Portuguese,Russian, Chinese | Contains articles pertaining to the hit dramaLost | Free |
| Memory Alpha | English,Bulgarian,Chinese,Czech,Dutch,Esperanto,French, German,Polish,Portuguese,Russian,Serbian,Spanish,Swedish | Articles aboutStar Trek | Free |
| LyricWiki(2006–20) | Multilingual | Wiki-basedlyrics databaseand encyclopedia | Defunct |
| The Rocklopedia Fakebandica | English | Articles on fake bands from popular entertainment | Free |
| Supernatural Wiki | English | Contains articles about the American television dramaSupernatural. | 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 |
| 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, Turkish, Chinese | Star Wars-related articles | Free |
| Wowpedia/Warcraft Wiki | 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 | Warcraft-related articles | Free |
Mathematics[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Encyclopedia of Mathematics | English | Encompasses articles on the topic ofmathematics | Free |
| Encyclopedia of Triangle Centers | English | Information about ten thousands oftriangle centers,includingcoordinates,operations,incidence,equations,etc. | Free |
| EqWorld | English, Russian | Articles on mathematicalequations | Free |
| MathWorld | English | Articles on a wide variety ofmathematicsrelated topics | Free |
| On-Line Encyclopedia of Integer Sequences | English | Information about hundred thousands ofintegersequences,includingformulas,relatedsequences,programs,etc. | Free/CC BY-NC 3.0 |
| PlanetMath | English | Mathematicsrelated topics and articles | Free/GNU |
| Stacks Project | English | A mathematics textbook writing project with the aim to cover "algebraic stacksand thealgebraic geometryneeded to define them " | Free |
| nLab | English | Category theoryand related topics | Free |
Media[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Bulgarian Rock Archives | Bulgarian | Archives of Bulgarianrockbands. | Free |
| Canadian Pop Music Encyclopedia | English | Encyclopedia of Canadian pop music | Free[27] |
| Encyclopaedia Metallum | English | Archives ofheavy metalbands | Free |
| Grove Music Online | English | Mostly on historic and classical music worldwide. It is the online version ofThe New Grove Dictionary of Music and Musicians,which has 20 printed volumes and was first published in 1980. | Subscription[14] |
| IMDb | English, German, French, Hungarian, Italian, Polish, Portuguese, Romanian, Turkish, and Spanish | Information related to worldfilms,television programs,home videos,video games,and internetstreams | Free |
| MusicBrainz | English, German, French, Italian, Dutch | An open music encyclopedia that collects musicmetadata.[28] | Free |
| MOOMA | Hebrew | Articles onIsraeli musicand musical artists | Free |
| PCGamingWiki | English | CoversPC gaming | Free |
| Rock in China | English | Documents and archives contemporaryChinese music,ranging fromrock musictopunk,metal,electro, jazz andhip-hop | Free |
Philosophy[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Stanford Encyclopedia of Philosophy | English | Philosophy subjects | Free |
| Routledge Encyclopedia of Philosophy | English | Philosophy articles | Subscription |
| Internet Encyclopedia of Philosophy | English | Philosophy related articles | Free |
| Marxists Internet Archive | Multilingual | Topics related to the study ofMarxism | Free |
Politics, law, and history[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Ballotpedia | English | American politics, elections, and public policy | Free |
| The Concise Encyclopedia of Economics | English | Economics – part of theLibrary of Economics and Liberty.Edited byDavid R. Henderson | Free |
| Cyclopaedia of Political Science, Political Economy, and the Political History of the United States | English | Articles about science, economics, and American authors. The 1899 edition is available online | Free |
| Diplopedia | English | US State Departmentinternal encyclopedic wiki, available for diplomats and overseas US agents to use | Access only through the State Department |
| dKosopedia | English | Political encyclopedia written from aprogressive/liberal Democraticpoint of view | Free |
| Encyclopedia Titanica | English | Encyclopedia related to the building and sinking of the RMSTitanic | 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, transgender, and queer culture. | Free |
| HistoryLink | English | Articles on the history ofWashington 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 |
| Max Planck Encyclopedia of Public International Law | English | Encyclopedia onpublic International Law | Free |
| Online Encyclopedia of Mass Violence | French | Electronic database focusing onmassacresandgenocidesof the 20th century.[29] | Free |
| Our World in Data | English | Global trends on economic growth, poverty, health, war, violence, education, and demographics | Free |
| Spartacus Educational | English | Free | |
| World History Encyclopedia | English | The world's most-read history encyclopedia, coveringworld historyfrom all time periods; reviewed by an editorial team, not a Wiki.[30] | Free |
Religion and theology[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| AhmadiPedia | English | Dedicated to the study of the WorldwideAhmadiyya Muslim Community. | Free, public domain |
| Catholic Encyclopedia | English | Topics relating toCatholicism,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 about "the Literary, Political and Religious History, the Archaeology, Geography, and Natural History of the Bible" | Free |
| Encyclopedia of Mormonism | English | Articles byMormon academicsonhistoryanddoctrineofthe Church of Jesus Christ of Latter-day Saints(LDS Church). | Free |
| Global Anabaptist Mennonite Encyclopedia Online | English | Topics relating toAnabaptismandMennonites | Free |
| İslâm Ansiklopedisi | Turkish | Articles on topics concerningIslamic studies. | Free |
| The Jewish Encyclopedia | English | Topics relating toJudaism | Free |
| Jewish Virtual Library | English | Portals to essentialJewishtopics | Free |
| Encyclopedia Mythica | English | Covers folklore, mythology, and religion.[13] | Free |
| Punjabipedia | Punjabi | Entries on Sikhism | Subscription |
| Schaff–Herzog Encyclopedia of Religious Knowledge | English | Christian, published 1908–1914 | Free, public domain |
| WikiShia | Various (see listhere) | Shia Islam, published since 2013 | Free |
Science and technology[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Encyclopedia Astronautica | English | Contains articles on the subject ofspace explorationandastronomy,no longer updated since 2019 | Free |
| Encyclopedia of Earth | English | Articles on the Earth and its ecosystems | Free |
| Engineering and Technology History Wiki | English | The history of technology, a partnership between the United Engineering Foundation, and theAIChE,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 theJava Platform | Free |
| Omniglot | English | Covers languages and writing systems. | Free |
| Proteopedia | English | Wiki-based 3D encyclopedia ofproteinsand othermolecules. | Free |
| RP Photonics Encyclopedia | English | Lasertechnology,photonics,and various other areas ofphotonicssuch asnonlinear optics,non-laser light sources,fiber optics,andultrashort pulsesof light. | Free |
| ScienceWorld | English | Covers astronomy, scientific biography, chemistry, and physics. LikeMathWorld,it is edited byEric Weisstein. | Free |
Life sciences[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Animal Diversity Web | English | Student wiki-type database at theUniversity of Michiganof animal natural history, distribution, classification, and conservation biology. | Free |
| APpedia | Chinese | Contains articles on the subject of generalanimal 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 | Biologyrelated articles | Subscription |
| Encyclopedia of Life Support Systems | English | Articles about thenaturalandsocial sciences | Subscription |
| Erowid | English | Information aboutpsychoactivesubstances | 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 |
| King Abdullah Bin Abdulaziz Arabic Health Encyclopedia | Arabic,English | Health encyclopedia | Free |
| Palaeos | English | Coverspalaeontology | Free |
| World Flora Online | English | Covers the world's plant species | Free |
| Wikispecies | English | Seeks to create a catalog of all living things | Free |
| ZipcodeZoo | English | Encyclopedia of all living things | Defunct |
Medical[edit]
| Site | Language | Description | Access |
|---|---|---|---|
| Ganfyd | English | Onlinemedical wiki | Defunct |
| Radiopaedia | English | Articles onmedical imagingused inradiologyandradiography | Free |
| WikEM | English | Anemergency medicineopen-access source[31] | Free |
See also[edit]
- Chinese encyclopedia
- List of academic databases and search engines
- List of blogs
- List of Danish online encyclopedic resources
- List of encyclopedias by branch of knowledge
- List of online databases
- List of online dictionaries
- List of multilingual MediaWiki sites
- List of wikis
- List of Wikipedias
References[edit]
- ^James, Andrea (12 June 2017)."Can Everipedia remake collaborative encyclopedias to be inclusive and enjoyable?".Boing Boing.
- ^Lee, Elaine (22 March 2016)."Wharton dropout creates Wikipedia alternative alongside Rap Genius co-founder".The Daily Pennsylvanian.
- ^Anderson, Nate (2007-03-05)."Conservapedia hopes to" fix "Wikipedia's" liberal bias "".Retrieved2019-04-05.
- ^Stöcker, Christian (2007-03-06)."The Lord's Encyclopedia".Retrieved2019-06-08.
- ^Seeword search
- ^Perrine Signoret (27 June 2017)."Infogalactic, Metapedia, Conservapedia: l'extrême droite aussi a ses" Wikipédia "".LExpansion.com(in French).Retrieved13 November2019.
- ^Adam G. Klein (June 2010).A Space for Hate: The White Power Movement's Adaptation Into Cyberspace.pp. 93, 104–105.ISBN978-1-936117-07-9.
- ^Haines, Lester (2007-07-23)."Conservapedia too pinko? Try Metapedia - Aryans battle 'Cultural Marxism'".The Register.Situation Publishing. Archived fromthe originalon 28 June 2011.Retrieved9 March2011.
- ^Schweyer, Cléo (2009-07-15)."L'extrême droite s'offre une seconde jeunesse sur le web".cafebabel.fr(in French). Babel International. Archived fromthe originalon 20 July 2011.Retrieved9 March2011.
- ^"Metapedia" als nationales Pendant zu "Wikipedia"Archived15 May 2013 at theWayback Machine(i.e "Metapedia" as a nationalist counterpart to "Wikipedia" ) from: "Report by the NRW Office for the Protection of the Constitution for the year 2008" by theMinistry of InteriorofNorth Rhine-Westphalia.pp. 59f.(in German)
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- ^"SF Encyclopedia Editorial Home".
- ^ab"About | Encyclopedia Mythica".pantheon.org.Retrieved 2021-03-01.
- ^abIn UK, can normally be accessed free via a local library
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