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Free and Open source Software Developers' European Meeting
FOSDEM logo.svg
GenreFree and open-source software development conference
Inaugurated2000 (2000) (as OSDEM), 2001 (2001) (as FOSDEM)[1]
Previous event5–6 February 2022
Next event4–5 February 2023 Edit this at Wikidata
FOSDEM is well attended, nobody is allowed in once a talk is full

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 open-source software movement. It aims to enable developers to meet and to promote the awareness and use of free and open-source software.

FOSDEM is held annually, usually during the first weekend of February, at the Université Libre de Bruxelles Solbosch campus in the southeast of Brussels, Belgium.


FOSDEM was started in 2000[2] under the name Open Source Developers of Europe Meeting (OSDEM) by Raphael Bauduin. Bauduin said that since he felt he lacked the brains to properly contribute to the open-source community, he wanted to contribute by launching a European event in Brussels. Bauduin teamed up with Damien Sandras.[3] The team repeated the event. The F (of FOSDEM) was added at the request of Richard Stallman.[4]

The event has been annually in February since then, with growing numbers of visitors, talks and tracks. It is organized thanks to the help of many volunteers.

The meeting hosted about 4,000 visitors every year by 2011.[5]

Due to the COVID-19 pandemic, FOSDEM 2021 and 2022 were held entirely online.[6][7]

Conference history[edit]

  • 2001 – Event named OSDEM, started by a team of five people. Organized in two months.
  • 2002 – Event renamed to FOSDEM, at the request of Richard Stallman. Attendance grew to a few thousand.
  • 2003
    • Keynotes: The History of Free Software (Jon 'Maddog' Hall), FSF (Richard Stallman)
    • Tracks: databases, desktop, education, multimedia, security, toolkit, tutorials
    • Developer rooms: embedded software, gnome developers, GNUstep, KDE, Mozilla, PostgreSQL
  • 2004
    • Keynotes: The open source paradigm shift (Tim O'Reilly), FSF (Richard Stallman)
    • Tracks: accessibility, Java, Linux kernel, Scripting languages, security, X&Co
    • Developer rooms: Debian, Java, OpenMosix, MySQL, Embedded software, KDE, Mozilla, Tcl
    • Tutorials, unofficial talks served as a platform for ad hoc talks.
Jimmy Wales at FOSDEM, 2005
  • 2005
    • Keynotes: Wikipedia (Jimmy Wales), FSF (Richard Stallman)
    • Tracks: Desktop, Development tools, GRID/Clusters, Linux kernel, Packaging tools, security
    • Developer rooms: Calibre, Clustering, Dokeos, Embedded software, Gnome, GNU Hurd, KDE, Opengroupware, PHP/Pear, GNU Classpath, Debian, Drupal, Gentoo, GNUstep, Jabber, Mozilla, Perl, Tcl
    • Unofficial talks were again present.
  • 2006
    • Keynotes: Richard Stallman, GPLv3 discussion
    • Tracks: Desktop, Development, Security, Systems, Voice over IP, Web 2.0
    • Developer rooms: Ada, GNU Classpath, Embedded software, Gnome, Jabber, Linux on Laptops, Opengroupware, Tcl/Tk, Calibre, Debian, Gentoo, GNUstep, KDE, Mozilla, openSUSE,
  • 2007
    • Keynotes: OLPC (Jim Gettys), Liberating Java (Simon Phipps)
    • Tracks:
      • main tracks: Opening/closing talks, Security, Desktop applications, Development and languages, Kernel, Web, Internet Services
      • side tracks: Lightning Talks, Key signing party
    • Developer rooms: CrossDesktop, KDE, Gnome, openSUSE, Mozilla, GNU Classpath+OpenJDK DevJam, CentOS+Fedora, Jabber, OpenGroupware+GNUstep, Python, Research Room,, Gentoo, Debian, Embedded
  • 2008
    • Keynotes: "Tux with Shades, Linux in Hollywood" (Robin Rowe), How a large scale opensource project works (Robert Watson), Status update of Software Patents (Pieter Hintjens)
    • Tracks: Opening/Closing talks, Languages, Build Systems, Games, Packaging, Virtualization, Web
    • Developer rooms: BSD+PostgreSQL, CentOS+Fedora, CrossDesktop, Debian, Drupal, Embedded, Free Java, GNOME, JBoss, Mozilla,, openSUSE, Research Room, Ruby on Rails,
    • There were lightning talks about miscellaneous subjects.
  • 2009
    • Keynotes: "Free. Open. Future?" (Mark Surman), Debian (Bdale Garbee), Google Summer of Code: A behind the scenes look at a large scale community (Leslie Hawthorn)
    • Tracks: Distributions, Languages, Security, Systems, Collaboration, Kernel
    • Developer rooms: Ada, BSD+PostgreSQL, CentOS+Fedora, CrossDesktop, Debian, Drupal, Embedded, Free Java, GNOME, GNUStep+Groupware, Jabber+XMPP, KDE, Mozilla,, openSUSE, Ruby on Rails,
    • There were lightning talks about miscellaneous subjects.
    • Various activities: Key Signing Party, Open Source Initiative special session, etc.
  • 2011
    • Keynotes: "Why Political Liberty Depends on Software Freedom More Than Ever" (Eben Moglen), "LLVM and Clang" (Chris Lattner), "How kernel development goes wrong and why you should be a part of it anyway" (Jonathan Corbet)[8]
    • Tracks: Systems, Web browsing, Cloud, Languages, Office, Web frameworks[9]
    • Developer rooms: Crossdesktop, Data analytics, Cross distro, Embedded, Free Java, GNU, Jabber & XMPP, Mono, Mozilla, MySQL & friends, Security & hardware crypto, World of GNUstep, Accessibility, Configuration & Systems management, LibreOffice, New challenges in virtualization, Open source telephony, Perl, PostgreSQL[9]
    • There were lightning talks about miscellaneous subjects.[10]
    • Various activities: PGP key signing, certification exams,[11] beer drinking,[12] and other social events.
  • 2012
    • Keynotes: "Free Software: A viable model for Commercial Success" (Robert Dewar), "A new OSI for a new decade" (Simon Phipps), "Re-thinking system and distro development" (Lars Wirzenius), "Freedom, out of the box!" (Bdale Garbee)[13]
    • Tracks: Future of UI, Hypervisors, Network and IO, System, Community, Development[13]
    • Developer rooms: Ada, CrossDesktop, CrossDistribution, Embedded, Free Java, GNUstep, Hardware Cryptography,, Jabber and XMPP, Legal Issues, LibreOffice, Mono, Mozilla, Open Mobile Linux, PostgreSQL, Virtualization and Cloud, X.Org+OpenICC, Configuration and Systems Management, Graph Processing, Microkernel OS, MySQL and friends, Open Source Game Development, Perl, Security, Smalltalk, Telephony and Communications,[14]
    • There were lightning talks about miscellaneous subjects.[15]
  • 2013
    • Keynotes: "How we made the Jenkins community" (Kohsuke Kawaguchi), "The Devil is in the Details" (Amelia Andersdotter), "The Keeper of Secrets" (Leslie Hawthorn)[16]
    • Tracks: Graphics hardware and FOSS[17]
  • 2017[25]
    • Keynotes: "Kubernetes on the road to GIFEE" (Brandon Philips), "Software Heritage" (Stefano Zacchiroli, Roberto Di Cosmo), "Understanding The Complexity of Copyleft Defense" (Bradley M. Kuhn), "Using Linux in Air Traffic Control" (Gerolf Ziegenhain)[26]
    • DevRooms: BSD; Backup and Disaster Recovery; Community; Config management; Decentralised Internet; Desktops; Distributions; Electronic Design Automation (EDA); Embedded, mobile and automotive; Free Java; GNU Guile; Geospatial; Go; Graph; HPC, big data and data science; oT; LLVM toolchain; Legal and Policy Issues; Linux Containers and Microservices; Lua; Microkernels and Component-based OS, Monitoring and Cloud; Mozilla; MySQL and Friends; Open Document Editors; Open Game Development; Open Media; Open Source Design; PHP and Friends; Perl; PostgreSQL; Python; Real Time Communications; Ruby; SDN and NFV; Security; Software Defined Radio; Software Defined Storage; Testing and Automation; Valgrind; Virtualisation and IaaS.[27]
  • 2018[28]
    • Keynotes: "Consensus as a Service" (Simon Phipps), "Next Generation Internet Initiative" (Rob van Kranenburg, Michiel Leenaars, Marietje Schaake, Georgios Tselentis), "Exploiting modern microarchitectures" (Jon Masters).[29]
    • DevRooms: Ada; BSD; CAD and Open Hardware; Community; Config Management; Containers; DNS; Debugging tools; Decentralised Internet and Privacy; Distributions; Embedded, mobile and automotive; Free Java; Geospatial; Go; Graph Processing; Graphics; HPC, Big Data, and Data Science; Hardware Enablement; Identity and Access Management; Internet of Things; LLVM Toolchain; Legal and Policy Issues; Microkernels; Monitoring and Cloud; Mozilla; MySQL and Friends; Open Document Editors; Open Media; Open Source Design; Package Management; Perl Programming Languages; PostgreSQL; Real Time Communications; Retrocomputing; Rust; SDN and NFV; Software Defined Radio; Software Defined Storage; Source Code Analysis; Testing and automation; Tool the Docs; Virtualization and IaaS.[30]
  • 2019[31]
  • 2020[34]
    • Keynotes: "The Linux Kernel: We have to finish this thing one day ;) - Solving big problems in small steps for more than two decades" (Thorsten Leemhuis), "FOSSH - 2000 to 2020 and beyond! - maddog continues to pontificate" (Jon 'maddog' Hall), "FOSDEM@20 - A Celebration - The cliché of constant change" (Steven Goodwin)
    • DevRooms: Free Java; Software Defined Networking; DNS; Web Performance; Open Source Computer Aided Modeling and Design; Collaborative Information and Content Management Applications; Coding for Language Communities; Erlang, Elixir and Friends; Graph Processing; Ada; Open Research Tools and Technologies; Open Source Game Development; RISC-V; Retrocomputing; LLVM toolchain; X.Org/Graphics; Hardware-aided Trusted Computing; Confidential Consortium Framework; Open Source Firmware, BMC and Bootloader; Security; Quantum Computing; Legal and Policy Issues; Testing and Automation; Python; Open Document Editors; Backup and Recovery; Dependency Management; Infra Management; Containers; Embedded; JavaScript; Software Defined Storage; Virtualization and IaaS; Open Source Design; PostgreSQL; Software Defined Radio; BSD; Minimalistic Languages; Geospatial; Distributions; Rust; Debugging tools; Hardware Enablement; Microkernels and Component-based OS; Mozilla; MySQL, MariaDB and Friends; Kotlin; Decentralized Internet and Privacy; Open Media; Go; Continuous Integration and Continuous Deployment; HPC and computational science; Community Development; Free Tools and Editors; Monitoring and Observability; Real Time Communications; Internet of Things [35]
  • 2021[36]
    Due to the ongoing COVID-19 pandemic, this event was held online.
  • 2022[37]
    Due to the ongoing COVID-19 pandemic, this event was held online.
  • 2023
    Scheduled for 4–5 February 2023.


Entrance and participation in the event is entirely free. It is financed by sponsors who accept the non-commercial nature of the event, and by donors amongst the visitors. Donors receive an incentive in form of a token present and everything is organized and set up by volunteers.

FSF Award[edit]

The Free Software Foundation's ceremony for the Award for the Advancement of Free Software was held at FOSDEM from 2002 to 2006 (for the awards for 2001 to 2005).[38][39]

See also[edit]


  1. ^ "about FOSDEM".
  2. ^ "FOSDEM 2018 – About FOSDEM". Retrieved 2018-01-27.
  3. ^ "FOSDEM 2007 over".
  4. ^ "Fosdem 2002: Fosdem organiser interview". Retrieved 2011-03-16.
  5. ^ "About FOSDEM". FOSDEM. 2011. Archived from the original on 30 September 2011. Retrieved 16 March 2011.
  6. ^ "FOSDEM 2021 Online". Retrieved 2021-02-03.
  7. ^ "FOSDEM 2022 Online". Retrieved 2022-09-25.
  8. ^ "Keynotes". Archived from the original on 10 March 2011. Retrieved 21 March 2011.
  9. ^ a b "Tracks". Archived from the original on 5 April 2011. Retrieved 21 March 2011.
  10. ^ "Lightning talks". Archived from the original on 2 March 2011. Retrieved 21 March 2011.
  11. ^ "Certification Exams". Archived from the original on 3 March 2011. Retrieved 21 March 2011.
  12. ^ "Beer Event". Archived from the original on 27 February 2011. Retrieved 21 March 2011.
  13. ^ a b "Main Tracks 2012". Retrieved 14 December 2012.
  14. ^ "Devrooms 2012". Retrieved 14 December 2012.
  15. ^ "Lightning Talks 2012". Retrieved 14 December 2012.
  16. ^ FOSDEM 2013 – Keynotes. (2013-02-03). Retrieved on 2013-09-19.
  17. ^ "FOSDEM 2013 – Tracks". 2013-02-03. Retrieved 2014-01-27.
  18. ^ "FOSDEM 2014 – Home". Retrieved 2014-01-27.
  19. ^ "FOSDEM 2014 accepted developer rooms". Retrieved 2014-01-27.
  20. ^ "FOSDEM 2015 – Home".
  21. ^ "FOSDEM 2015 Keynote speakers".
  22. ^ "FOSDEM 2016".
  23. ^ "FOSDEM 2016 Keynote speakers".
  24. ^ "FOSDEM 2016 developer rooms".
  25. ^ "FOSDEM 2017".
  26. ^ "FOSDEM 2017 Keynote speakers".
  27. ^ "FOSDEM 2017 developer rooms".
  28. ^ "FOSDEM 2018".
  29. ^ "FOSDEM 2018 Keynote speakers".
  30. ^ "FOSDEM 2018 developer rooms".
  31. ^ "FOSDEM 2019".
  32. ^ "FOSDEM 2019 Keynote speakers".
  33. ^ "FOSDEM 2019 developer rooms".
  34. ^ "FOSDEM 2020".
  35. ^ "FOSDEM 2020 developer rooms".
  36. ^ "FOSDEM 2021".
  37. ^ "FOSDEM 2022 - Home".
  38. ^ GNU Project (26 September 2008). "Prior Years' Free Software Award". Free Software Foundation. Retrieved 16 March 2011.
  39. ^ Sullivan, John. "Award for the Advancement of Free Software". Free Software Foundation. Retrieved 16 March 2011.

External links[edit]

Media related to FOSDEM at Wikimedia Commons