Connecting people via the most comprehensive collection of Free, Libre and/or Open Source Software events happening in Europe and online. Unity in diversity!


If you know about an event that is not yet listed here and it matches the criteria, please contribute. For any questions get in contact.

Past events in 2021


28 Univention Summit online EN by Univention Gmbh


05 The EU Open Source Policy Summit online EN by OpenForum Europe, Linux Foundation
06-07 OFFDEM EN in Brussels, Belgium by Petites Singularités
06-07 FOSDEM online EN by Fosdem Team
10-11 FOSS Backstage online EN by Plain Schwarz (Germany)
14 I love Free Software Day online
18-20 online EN by Red Hat
22-25 preCICE2021 online EN by University of Stuttgart
26-27 Winterkongress DE in Zurich, Switzerland by Digitale Gesellschaft CH


06 Open Data Day
08-14 Mozilla Festival online EN by Mozilla Foundation
13-14 Chemnitzer Linux-Tage online DE by Individual Network Chemnitz e.V. (Germany)
13-15 DrupalCamp London online EN
30-01 Collaborations Workshop online EN by Software Sustainability Institute (United Kingdom)
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02-05 Reboot to Respawn online DE by Chaos Computer Club
09-10 Grazer Linuxtage online DE
23-24 Linuxwochen Eisenstadt online DE
24 Open Education Day DE in Bern, Switzerland by CH Open


06-08 Linuxwochen Wien DE in Vienna, Austria
12-13 Percona Live online EN
12-13 OSS2021 EN in Lahti, Finland
13-15 Linux App Summit online EN by KDE and GNOME
15 Erlanger Linuxtag DE in Erlangen, Germany by Erlanger Linux User Group
17-21 OpenTechSummit online EN
22 MERGE-it online IT
27-30 Libre Graphics Meeting EN/FR in Rennes, France
31-01 foss-north online EN


02-06 DjangoCon Europe online EN
02-06 DjangoCon Europe EN in Porto, Portugal by evolutio
05-06 esLibre online ES by LibreLabUCM
06-09 FOSSGIS-Konferenz DE in Rapperswil, Switzerland
07-10 WordCamp Europe online EN
10-13 DrupalCamping DE in Wolfsburg, Germany
12 DrupalCamp Kyiv EN in Kiev, Ukraine
14-17 Berlin Buzzwords online EN by plain Schwarz UG
15-17 stackconf online EN by NETWAYS Event Services GmbH
17-18 Open Source Lisbon online EN by Syone
18-20 openSUSE Summit Dublin online EN by OpenSUSE
18-25 Akademy online EN by KDE e.V.
23-24 OW2Con EN in Paris, France
24-26 European GNU Radio Days online EN in Poitier (France)
24-27 Hack in the woods EN in Tournai, Belgium (cancelled)
25-26 leHack EN in Paris, France by Same organisers as Nuit du Hack : )
28-11 THX 2021 FR in Ziordia, Spain by Petites Singularités


05-07 Pass the SALT online EN
09-11 State of the Map online EN by Openstreetmap Foundation
21-25 GUADEC online EN by GNOME in The Internet


06-10 May Contain Hackers EN in Zeewolde, the Netherlands by Volunteers (cancelled)
08 Global Mapping Party online EN by OpenStreetMap Foundation
14-15 OpenFest online BG by Open Projects Foundation (Bulgaria)
19-26 BornHack EN in Island of Funen, Denmark
21-22 FrOSCon online DE by FrOSCon e.V.
22-29 DebConf online EN by Debian Hackers
26-29 Camp++ EN in Komárom, Hungary


01-05 Hackmeeting 0x18 online IT in Casona di Ponticelli (Bologna) (Italy)
01-05 End Summer Camp in Venezia Tessera, Italy
07-09 CH Open Workshop Tage DE in Luzern, Switzerland by CH Open
09-12 Hacken Open Air DE in Gifhorn, Germany by Stratum 0
10-12 There is no Camp! DE in Decentralised, Germany by Chaos Computer Club
15-17 OpenSym EN in Madrid, Spain by OpenSym
16 Bitkom Forum Open Source DE in Erfurt, Germany by Bitkom
16 Practical Open Source Information online EN by Open Source Initiative
16-19 EuroBSDCon EN in Vienna, Austria
17-18 Kielux online DE by Kieler Linux Initiative
18 Software Freedom Day
19 Free/Libre Software and GNU/Linux EN in Kiev, Ukraine
21-23 ApacheCon online EN by Apache Foundation
23-25 LibreOffice Conference online EN
24-25 JoomlaDay Germany online DE
27-29 Open-Access-Tage online DE by
28-01 Open Source Summit Europe EN in Dublin, Ireland by The Linux Foundation (cancelled)
29-01 MiniDebCamp Regensburg EN in Regensburg, Germany by Debian Hackers


01-03 BalCCon2k21 online EN
02-03 PyConES online ES
02-03 MiniDebConf Regensburg EN in Regensburg, Germany by Debian Hackers
04-05 eLife Innovation Sprint online EN by Emmy Tsang (
04-06 Open Source Automation Days DE in Munich, Germany by ATIX
06-08 Workshop on Sustainable Software Sustainability online EN by WoSSS Partners
16 GNU/LinuxDay – Vorarlberg online DE by Linux User Group Vorarlberg in Dornbirn (Austria)
23 Linux Day across Italy online
25-28 EclipseCon online EN by Eclipse Foundation
29 DINAcon DE in Basel, Switzerland by Forschungsstelle Digitale Nachhaltigkeit
29-31 WikidataCon online


04-05 MatomoCamp online EN by MatomoCamp Team
12-13 SFScon online EN by NOI Techpark in Bozen (Italy)
12-14 FIfFKon online DE by FifF (Germany)
13-14 FOSSCOMM online EL by University of Macedonia
13-14 Tux-Tage online DE by Volunteers
18-21 Piksel EN in Bergen, Norway
19-21 Akademy-es online ES by KDE España
27-28 EmacsConf online EN by Emacs Hackers


10-11 GNU Health Con online EN by GNUSolidario
27-30 rC3 – remote Chaos Experience online DE by Chaos Computer Club


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