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
Europe
- Berlin Buzzwords, held annually in June in Berlin, Germany, since 2010[4]
- Chemnitz Linux Days, held in Chemnitz, Germany since 1999
- DevConf.cz, held annually in Brno, Czech Republic since 2009
- FOSS Backstage, held annually in February in Berlin, Germany, since 2018[5]
- Fosscomm, held annually in a different Greek city since 2008
- FOSDEM, held in Brussels, Belgium every February since 2001
- FrOSCon, held in Sankt Augustin (near Bonn), Germany since 2006
- Linux Day, held in Italy since 2001
- Linux Vacation / Eastern Europe, held in Belarus 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
Africa
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.[6]
Defunct
- Africa Source, held in 2004 and 2006
- Asia Source, held in 2005, 2007 and 2009
- August Penguin, held annually in Israel from 2004 to 2018
- FOSSAP, held in 2004 and 2005
- FOSS.IN, first known as "Linux Bangalore", held from 2001 to 2012[citation needed]
- Fórum Internacional Software Livre (FISL) – International Free Software Forum, held each year in Porto Alegre, Brazil (with 7000+ participants) from 2000 to 2018
- Free Software and Open Source Symposium (FSOSS), held at Seneca College, Toronto 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 from 2009 to 2019
- Ontario Linux Fest, held in Toronto, Ontario in the autumn from 2007 to 2009
- Open Source Day, conference held annually in Warsaw, Poland from 2008 to 2019
- Open Source Developers' Conference (OSDC), held annually in various countries from 2004 to 2015[citation needed]
- Solutions Linux [fr], a trade show and conference with 10,000 visitors held every year in Paris from 1999 to 2014[7]
- O'Reilly Open Source Convention (OSCON), held each summer in the US from 1999 to 2019.
- ÖzgürKon, online conference held in 2020 and 2021
- LinuxWorld Conference and Expo, briefly also known as "OpenSource World", from 1998 to 2009[citation needed]
- Wizards of OS, held in Berlin every two years from 1999 to 2006
- LinuxTag, held in Germany every summer from 1996 to 2014