List of free-software events

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

General free-software events

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

Festival Latinoamericano de Instalación de Software Libre (FLISOL) – Latin American free software install fest held yearly in all Latin America the same day, on the last Sunday of April
LibrePlanet – Organized yearly by the Free Software Foundation in or around Boston, Massachusetts since 2006
LinuxFest Northwest, held in Bellingham, Washington in the spring since 2000
SouthEast LinuxFest, held yearly in June since 2009.
Southern California Linux Expo (SCALE), held in Los Angeles yearly since 2002
All Things Open, held in Raleigh, N.C., since 2013

Chaos Communication Congress, held in Germany in the week between Christmas and New Year since 1984
Chemnitz Linux Days, held in Chemnitz, Germany since 1999
DevConf.cz, held yearly in Brno, Czech Republic since 2009
Fosscomm, held yearly 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 across Italy since 2001
Linux Vacation / Eastern Europe, held in Belarus every summer since 2005
OpenFest, held in Sofia, Bulgaria every autumn since 2003
SFSCON, held in Bolzano, Italy since 2004

FOSS for All Conference, held in Seoul, South Korea, every autumn since 2025
FOSSASIA, held yearly in Singapore, Vietnam, Thailand, India or China since 2009
COSCUP, held yearly in Taiwan since 2006
linux.conf.au, held in Australia or New Zealand in the (Southern Hemisphere) summer since 1999

Open Source Summit, known before 2017 as "LinuxCon", held several times yearly on various continents since 2009
Software Freedom Day, international observance since 2004
Open Forum Academy Symposium, academic conference covering questions related to the social, political and economic impact of Open Source

Africa Source, held in 2004 and 2006
Asia Source, held in 2005, 2007 and 2009
August Penguin, held yearly in Israel from 2004–2018
FOSS.IN, first known as "Linux Bangalore", from 2001–2012^{[citation needed]}
Fórum Internacional Software Livre (FISL) – International Free Software Forum, held yearly in Porto Alegre, Brazil (with 7000+ visitors) from 2000–2018
Free Software and Open Source Symposium (FSOSS), held at Seneca College, Toronto each October from 2001–2018
FSCONS, held every autumn in Gothenburg, Sweden from 2007–2019
Libre Software Meeting, French name "Rencontres mondiales du logiciel libre", held every July in France or surrounding countries from 2000–2018
Linux Bier Wanderung, informal event held in a different European country every summer from 1999–2019
Ontario Linux Fest, held in Toronto, Ontario in the autumn from 2007–2009
Open Source Day, conference held yearly in Warsaw, Poland from 2008–2019
Open Source Developers' Conference (OSDC), held yearly in various countries from 2004–2015^{[citation needed]}
Solutions Linux [fr], a trade show and conference with 10,000 visitors held every year in Paris from 1999–2014
O'Reilly Open Source Convention (OSCON), held each summer in the US from 1999–2019.
LinuxWorld Conference and Expo, briefly also known as "OpenSource World", from 1998–2009^{[citation needed]}
Wizards of OS, held in Berlin every two years from 1999–2006
LinuxTag, held in Germany every summer from 1996–2014

Debian Conference (DebConf) – conference for the Debian operating system, held yearly since 2000
Linux Kernel Developers Summit, annual conference since 2001
Ubuntu Developer Summit, held twice yearly (timed to fit Ubuntu releases), alternating between Europe and North America, from 2004–2015
Berkeley Software Distribution (BSD) operating system (DragonFly BSD, FreeBSD, NetBSD, OpenBSD) conferences:
- EuroBSDCon, held yearly since 2001 in different European cities
- BSDCan, held yearly since 2004 in Ottawa, Canada, North America

PyCon – conference for the Python language, held several times yearly in various locations since 2003
RubyConf – conference for the Ruby language, held once yearly in various locations since 2002
Yet Another Perl Conference – conference for the Perl language, held several times yearly since 1999

Akademy – conference for the KDE desktop environment, held yearly in Europe since 1997
Community Over Code – conference for the Apache Software Foundation and previously named ApacheCon, held once or twice yearly since 2000
DjangoCon – conference for the Django web framework, held twice yearly (once each in Europe or the U.S.) since 2008
DrupalCon – conference for the Drupal content management framework, held twice yearly (once each in Europe or North America) since 2007
GNOME Users And Developers European Conference (GUADEC) – conference for the GNOME desktop environment, held yearly in Europe since 2000
GNUHealthCon – conference for the GNU Health hospital management and digital health ecosystem, held yearly since 2010
WordCamp – event for the WordPress content management system, held often around the world since 2007
X.Org Developers' Conference (XDC) and X Developers' Summit (XDS), annual events since 2005 organized by X.Org Foundation
Libre Graphics Meeting, held yearly in May in Europe or Canada since 2006

BeGeistert – conference for the Haiku operating system, held yearly in Europe from 2006–2016 (originally a BeOS conference, from 1998–2005)
GCC Summit, held in Ottawa, Ontario, Canada from 2003–2010^{[citation needed]}
Gelato ICE, held yearly in the US or Italy by the Gelato Federation from 2001–2007^{[citation needed]}
Joomla World Conference – event for the Joomla content management system, held often around the world from 2011–2019
Linux Kongress, held in Germany in the autumn from 1994–2010
Linux Symposium, held in Canada in the summer from 1999–2014

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
All Things Open - Annual open source conference held in Raleigh, NC.
EuroBSDCon - Annual BSD operating systems conference in Europe
BSDCan - Annual BSD operating systems conference in Ottawa, Canada