Free-content websites

Wikipedia is a free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki. Founded by Jimmy Wales and Larry Sanger in 2001, Wikipedia has been hosted since 2003 by the Wikimedia Foundation, an American nonprofit organization funded mainly by donations from readers. Wikipedia is the largest and most-read reference work in history. According to Jimmy Wales, its mission is to make the sum of all human knowledge available to every person in the world.

wiki hosting service and domain

MusicBrainz is a project by the MetaBrainz Foundation that aims to create a collaborative music database that is similar to the freedb project. MusicBrainz was founded due to the restrictions placed on the Compact Disc Database (CDDB), a database for software applications to look up audio CD information on the Internet. MusicBrainz has expanded its goals beyond serving as a CD metadata repository, evolving into a structured online database for music information, including details about artists, performers, and songwriters.

Conservapedia (; ) is an English-language, wiki-based, online encyclopedia written from a self-described American conservative and fundamentalist Christian point of view. The website was established in 2006 by American attorney and activist Andrew Schlafly, son of Phyllis Schlafly, to counter what he perceived as a liberal bias on Wikipedia. It uses editorials and a wiki-based system for content generation.

project for the creation of a virtual library of public domain music scores

Lichess (, ) is an Internet chess server that is free and open-source, run by a non-profit organization of the same name. Users of the site can play online chess anonymously and optionally register an account to play games to earn a rating on Lichess. Lichess is ad-free and all the features are available for free, as the site is funded by donations from patrons, who receive a special badge as thanks for their support. Features include chess puzzles, computer analysis, tournaments and chess variants.

Tatoeba is a free collection of example sentences with translations geared towards foreign language learners. It is available in more than 400 languages. Its name comes from the Japanese phrase , meaning 'for example'. It is written and maintained by a community of volunteers through a model of open collaboration. Individual contributors are known as "Tatoebans". It is run by Association Tatoeba, a French non-profit organization funded through donations.

multilingual online wiki-encyclopedia from Russia

RationalWiki is an online wiki which is written from a scientific skeptic, secular, and progressive perspective. Its stated goals are to "analyze and refute pseudoscience and the anti-science movement, document crank ideas, explore conspiracy theories, authoritarianism, and fundamentalism, and analyze how these subjects are handled in the media." It was created in 2007 as a counterpoint to Conservapedia, an American conservative and Christian fundamentalist website, after an incident in which some editors of Conservapedia were banned. RationalWiki has been described as liberal in contrast to C

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Musopen is an organization which creates, produces and disseminates Western classical music, via public domain recordings, sheet music and educational resources. It has been favorably compared to IMSLP and stands with ChoralWiki and the Wind Repertory Project as among the most prominent online music databases.

Freedb was a database of user-submitted compact disc track listings, where all the content was under the GNU General Public License. To look up CD information over the Internet, a client program calculated a hash function from the CD table of contents and used it as a disc ID to query the database. If the disc was in the database, the client was able to retrieve and display the artist, album title, track list and some additional information.

OpenSeaMap is a software project collecting freely usable nautical information and geospatial data to create a worldwide nautical chart. This chart is available on the OpenSeaMap website, and can also be downloaded for use as an electronic chart for offline applications.

open wiki to catalog food, nutrition facts and ingredients

Jmail is a browser-based archive of the Epstein files, which were released by the United States House Committee on Oversight and Government Reform under the Epstein Files Transparency Act (EFTA). The website was initially stylized in a Gmail-based interface, and later added the interfaces of other sites (Facebook, Google Drive, YouTube, Spotify, Google Photos, Google Flights, Amazon, Wikipedia), with the goal of making the EFTA releases easier to access and browse.

MicroWiki is a free online encyclopedia about micronations launched in 2005. It has since become the principal way in which Internet users document micronational matters, as most do not meet Wikipedia's notability requirements. It is maintained by volunteers using the same MediaWiki software as Wikipedia. MicroWiki describes itself as "the largest encyclopedia about micronations".

PanARMENIAN.net is the first Armenian online news agency, an internet portal based in Yerevan, Armenia. The PanARMENIAN.net information-analytical portal is one of the projects of the "PanArmenian Network" NGO. It was launched on April 2, 2000. PanARMENIAN.net provides information and analysis about the main events in the social and political life of Armenia, as well as events taking place all over the world that are connected with Armenia directly or indirectly. Topics covered: Politics, Armenia and the World, Society, Economics, Region, Sport, Culture, IT and Telecommunications.

Mapnik is an open-source mapping toolkit for desktop and server based map rendering, written in C++. Artem Pavlenko, the original developer of Mapnik, set out with the explicit goal of creating beautiful maps by employing the sub-pixel anti-aliasing of the Anti-Grain Geometry (AGG) library. Mapnik now also has a Cairo rendering backend. For handling common software tasks such as memory management, file system access, regular expressions, and XML parsing, Mapnik utilizes the Boost C++ libraries. An XML file can be used to define a collection of mapping objects that determine the appearance of a

Moegirlpedia, commonly shortened as Mengbai, is a Chinese wiki encyclopedia launched in October 11, 2010, and features anime, comics, and video games, commonly abbreviated in China as ACG, and mainly contains female characters, moe anthropomorphism works, and Chinese authors' original works.

the first online encyclopedia in Esperanto

Chinese internet encyclopedia

Langmaker is a website run by Jeffrey Henning that acts as a database of conlangs, neographies, and other resources related to conlanging and conworlding. Prominent articles and the conlang directory were collected published by Yannia Press as Langmaker: Celebrating Conlangs, with an introduction by David J. Peterson. As of June 4, 2009, the site was offline. An unknown source took control of the website, hosting malware. After the takeover of the website, the owner regained control in 2022 making the site available through a Tor network endpoint until 2023.