The following is a list of computer conferences and other events focused on the development and usage of free and open-source software (FOSS).

General free-software events

Some events with "Linux" in their name are in fact general-purpose free-software events, often because they began as Linux-only events before broadening their focus.

North, Central and South America

* FLISOL – Latin American free software install fest held each year in all Latin America the same day, on the last Sunday of April *

LibrePlanet LibrePlanet (literally, "Free Planet") is a community project created and supported by the Free Software Foundation. Its objective is the promotion of free software around the world by bringing every year an international conference to local comm ...

– Organized annually by the

Free Software Foundation The Free Software Foundation (FSF) is a 501(c)(3) non-profit organization founded by Richard Stallman on October 4, 1985, to support the free software movement, with the organization's preference for software being distributed under copyleft (" ...

in or around Boston, Massachusetts since 2006 *

LinuxFest Northwest LinuxFest Northwest is an annual technology conference and expo held in Bellingham, Washington. It is a Saturday and Sunday weekend event held in late April or early May. The event is dedicated to discussion and development of the Linux operating ...

, held in

Bellingham, Washington Bellingham ( ) is the most populous city in, and county seat of Whatcom County in the U.S. state of Washington. It lies south of the U.S.–Canada border in between two major cities of the Pacific Northwest: Vancouver, British Columbia (loc ...

in the spring since 2000 * OLF Conference (formerly Ohio Linux Fest), held annually in

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

since 2003 * SouthEast LinuxFest, held annually in June since 2009. * Southern California Linux Expo (SCALE), held in

Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the List of municipalities in California, largest city in the U.S. state, state of California and the List of United States cities by population, sec ...

each year since 2002
Seattle GNU/Linux conference
(SeaGL), held each fall in

Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...

since 2013

Europe

Berlin Buzzwords
held annually in June in Berlin, Germany, since 2010 * Chemnitz Linux Days, held in Chemnitz,

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

since 1999 * DevConf.cz, held annually in Brno,

Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...

since 2009
FOSS Backstage
held annually in February in Berlin, Germany, since 2018 * Fosscomm, held annually in a different

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

city since 2008 *

FOSDEM Free and Open source Software Developers' European Meeting (FOSDEM) is a non-commercial, volunteer-organized European event centered on free and open-source software development. It is aimed at developers and anyone interested in the free and ...

, held in Brussels, Belgium every February since 2001 * FrOSCon, held in

Sankt Augustin Sankt Augustin ( Ripuarian: ''Sank Aujustin'') is a town in the Rhein-Sieg district, in North Rhine-Westphalia, Germany. It is named after the patron saint of the Divine Word Missionaries, Saint Augustine of Hippo (354-430). The Missionaries e ...

(near

Bonn The federal city of Bonn ( lat, Bonna) is a city on the banks of the Rhine in the German state of North Rhine-Westphalia, with a population of over 300,000. About south-southeast of Cologne, Bonn is in the southernmost part of the Rhine-Ru ...

since 2006 *

Linux Day Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which inc ...

, held in

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

since 2001 *

Linux Vacation / Eastern Europe Linux Vacation / Eastern Europe (LVEE) is an annual international conference of developers and users of free and open source software. It takes place in the end of June – beginning of July in Belarus, near the Grodno city. The event is aimed at ...

, held in

Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...

every summer since 2005
openSUSE Conference
held annually at a location in Europe since 2010
OpenFest
held annually in Sofia, Bulgaria, every November since 2003

Asia and Australia

* COSCUP, held annually in

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

since 2006
FOSSASIA Summit
held annually since 2009, normally in the Singapore hub.
IndiaFOSS
first held in 2020 a
IndiaOS
then held in July 2022 in

Bangalore Bangalore (), List of renamed places in India, officially Bengaluru (), is the Capital city, capital and largest city of the Indian state of Karnataka. It has a population of more than and a metropolitan area, metropolitan population of a ...

. * linux.conf.au, held in Australia or

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

in the (Southern Hemisphere) summer since 1999
openSUSE Asia Summit
held annually at a location in Asia since 2014

Africa

linuxconf.co.za
held in

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...

since 2018

International

* Open Source Summit, known before 2017 as "LinuxCon", held several times each year in various continents since 2009 * Software Freedom Day, international observance since 2004 *FOSS4G (Free and Open Source Software for Geospatial), since 2006. Held once a year in various continents. Organized by

OSGeo The Open Source Geospatial Foundation (OSGeo), is a non-profit non-governmental organization whose mission is to support and promote the collaborative development of open geospatial technologies and data. The foundation was formed in February 20 ...

Defunct

* Africa Source, held in 2004 and 2006 * Asia Source, held in 2005, 2007 and 2009 * August Penguin, held annually in

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

from 2004 to 2018 *FOSSAP, held in 2004 and 2005 * FOSS.IN, first known as "Linux Bangalore", held from 2001 to 2012 * Fórum Internacional Software Livre (FISL) – International Free Software Forum, held each year in

Porto Alegre Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1,488,252 inhabitants (2020) makes it the twelfth most populous city in the country and the center of Brazil's fif ...

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

(with 7000+ participants) from 2000 to 2018 * Free Software and Open Source Symposium (FSOSS), held at

Seneca College Seneca College of Applied Arts and Technology is a multiple-campus public college in the Greater Toronto Area, and Peterborough, Ontario, Canada regions. It offers full-time and part-time programs at the baccalaureate, diploma, certificate an ...

Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the anch ...

each October from 2001 to 2018 * FSCONS, held every autumn in Gothenburg, Sweden from 2007 to 2019 * GOSCON, held annually in the United States from 2005 to 2011 * Libre Software Meeting, French name "Rencontres mondiales du logiciel libre", held every July in France or surrounding countries from 2000 to 2018 * Linux Bier Wanderung, informal event held in a different European country every summer from 1999 to 2019
OggCamp
a BarCamp-style conference held annually in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

from 2009 to 2019 * Ontario Linux Fest, held in

, Ontario in the autumn from 2007 to 2009 * Open Source Day, conference held annually in

Warsaw Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is officia ...

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...

from 2008 to 2019 * Open Source Developers' Conference (OSDC), held annually in various countries from 2004 to 2015 *, a trade show and conference with 10,000 visitors held every year in

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma ...

from 1999 to 2014 *

O'Reilly Open Source Convention The O'Reilly Open Source Convention (OSCON) was an American annual convention for the discussion of free and open-source software. It was organized by publisher O'Reilly Media and was held each summer, mostly in Portland, Oregon, from 1999 ...

(OSCON), held each summer in the US from 1999 to 2019. * ÖzgürKon, online conference held in 2020 and 2021 *

LinuxWorld Conference and Expo LinuxWorld Conference and Expo (renamed to OpenSource World in its final year) was a conference and trade show that focused on open source and Linux solutions in the information technology sector. It ran from 1998 to 2009, in venues around th ...

, briefly also known as "OpenSource World", from 1998 to 2009 * Wizards of OS, held in Berlin every two years from 1999 to 2006 * LinuxTag, held in

every summer from 1996 to 2014

Events for specific free software

Operating systems

* DebConf – conference for the Debian operating system, held annually since 2000 * Linux Kernel Developers Summit, annual conference since 2001 * ROSCon, annual conference about ROS since 2012

Programming languages

PyCon The Python Conference (also called PyCon) is the largestpage 10 annual convention for the discussion and promotion of the Python programming language. It originated in the United States but is also held in more than 40 other countries. It was one ...

– conference for the

Python Python may refer to: Snakes * Pythonidae, a family of nonvenomous snakes found in Africa, Asia, and Australia ** ''Python'' (genus), a genus of Pythonidae found in Africa and Asia * Python (mythology), a mythical serpent Computing * Python (pro ...

programming language, held several times a year in different locations since 2003 * RubyConf – conference for the

Ruby A ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called ...

programming language, held once a year in different locations since 2002 * Yet Another Perl Conference – conference for the

Perl Perl is a family of two high-level, general-purpose, interpreted, dynamic programming languages. "Perl" refers to Perl 5, but from 2000 to 2019 it also referred to its redesigned "sister language", Perl 6, before the latter's name was offic ...

programming language, held several times a year since 1999 * ZendCon & OpenEnterprise –

PHP PHP is a general-purpose scripting language geared toward web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by The PHP Group. ...

and open source conferenceCloud computing underwhelms PHP developers
/ref>

Other

* Akademy – conference for the KDE desktop environment, held annually in Europe since 1997 *

ApacheCon ApacheCon is the official open source software convention of the Apache Software Foundation, focused on the software projects hosted at the ASF, as well as on the development and governance philosophies of the ASF. In the early years the event was ...

– conference for the Apache HTTP Server, held once or twice each year since 2000 * DjangoCon – conference for the Django web framework, held twice a year (once in Europe and once in the U.S.) since 2008 * DrupalCon – conference for the Drupal content management framework, held twice a year (once in Europe and once in North America) since 2007 * GNOME Users And Developers European Conference – conference for the GNOME desktop environment, held annually in Europe since 2000 * GNUHealthCon – conference for the

GNU Health GNU Health is a free/libre health and hospital information system with strong focus on public health and social medicine. Its functionality includes management of electronic health records and laboratory information management system. It is de ...

hospital management and digital health ecosystem, held annually since 2010 *

Libre Graphics Meeting The Libre Graphics Meeting (LGM) is an annual international convention for the discussion of free and open source software used with graphics; The first Libre Graphics Meeting was held in March 2006. Communities from Inkscape, GIMP, Krita, Scri ...

, held each year in May in Europe or Canada since 2006
LibreOffice Conference
conference for

LibreOffice LibreOffice () is a free and open-source office productivity software suite, a project of The Document Foundation (TDF). It was forked in 2010 from OpenOffice.org, an open-sourced version of the earlier StarOffice. The LibreOffice suite co ...

FOSS office suite, held each year since 2011 *Spinnaker Summit – summit for the Spinnaker

continuous delivery Continuous delivery (CD) is a software engineering approach in which teams produce software in short cycles, ensuring that the software can be reliably released at any time and, following a pipeline through a "production-like environment", withou ...

software, held annually in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

since 2017 * WordCamp – event for the

WordPress WordPress (WP or WordPress.org) is a free and open-source content management system (CMS) written in hypertext preprocessor language and paired with a MySQL or MariaDB database with supported HTTPS. Features include a plugin architecture ...

content management system, held frequently around the world since 2007 * X.Org Developers' Conference (XDC) and X Developers' Summit (XDS), annual events since 2005 organized by

X.Org Foundation The X.Org Foundation is a non-profit corporation chartered to research, develop, support, organize, administrate, standardize, promote, and defend a free and open accelerated graphics stack. This includes, but is not limited to, the following p ...

Defunct

* BeGeistert – conference for the

Haiku is a type of short form poetry originally from Japan. Traditional Japanese haiku consist of three phrases that contain a ''kireji'', or "cutting word", 17 '' on'' (phonetic units similar to syllables) in a 5, 7, 5 pattern, and a ''kigo'', or s ...

operating system, held annually in Europe from 2006 to 2016 (originally a BeOS conference, from 1998 to 2005) * Desktop Developers' Conference, held from 2004 to 2006 *Desktop Linux Summit, held in

San Diego San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United State ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

from 2003 to 2006 * GCC Summit, held in

Ottawa, Ontario Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...

, Canada from 2003 to 2010 * Gelato ICE, held each year in the US or Italy by the Gelato Federation from 2001 to 2007 * Joomla World Conference – event for the

Joomla Joomla (), also spelled Joomla! (with an exclamation mark) and sometimes abbreviated as J!, is a free and open-source content management system (CMS) for publishing web content on websites. Web content applications include discussion forums, ...

content management system, held frequently around the from 2011 to 2019 *

Linux Kongress The Linux Kongress was an annual conference of Linux developers from around the world, that took place every year from 1994 to 2010. It started as a two-day conference in 1994, when Linux was in the early stages of development, and by 2003 had becom ...

, held in

in the autumn from 1994 to 2010 *

Linux Symposium The Linux Symposium was a Linux and Open Source conference held annually in Canada from 1999 to 2014. The conference was initially named Ottawa Linux Symposium and was held only in Ottawa, but was renamed after being held in other cities in Canada. ...

, held in

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

in the summer from 1999 to 2014 * Ubuntu Developer Summit, held twice a year (timed with respect to

Ubuntu Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: '' Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All ...

releases), alternating between Europe and North America, from 2004 to 2015

References

External links

LWN.net Community Calendar
– lists upcoming Linux and free/open source software conferences
''Linux Magazin'' events calendar
– continuously updated list of Linux and Open Source conferences
// foss.events
– upcoming and past Free and Open Source Software events in Europe
FOSS Events in Europe
{{FOSS *

Free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, no ...