Connecting people via the most comprehensive collection of Free, Libre
and/or Open Source Software events happening in Europe and online .
Unity in diversity!
Open Collective FOSDEM meetup nl/en/fr
in Brussels, Belgium
by Open Collective
OFFDEM en
in Brussels, Belgium
by Petites Singularités
FOSDEM en
in Brussels, Belgium
by Fosdem Team
Bytenight nl/en/fr
in Brussels, Belgium
by Hackerspace Brussels
Config Management Camp en
in Ghent, Belgium
by CfgMgmtCamp Team
State of Open Con 2025 en
in London, United Kingdom
by OpenUK
I love Free Software Day
Python Barcamp KA de
in Karlsruhe, Germany
by Python Software Verband e.V.
AlpOSS fr
in Echirolles, France
by City of Echirolles
International FOSS Hackathon en
in multiple cities, International
by OS-SCi, FOSSTECH Projects
Winterkongress de
in Winterthur, Switzerland
by Digitale Gesellschaft CH
Handycon 2025 online
en
by Handycon Team
in Online
(International)
Teckids-Campdays de
in Worms, Germany
by Teckids-Gemeinschaft
FOSS Backstage en
in Berlin, Germany
by Plain Schwarz UG
Open Source Job Fair nl/en
in Leuven, Belgium
by ULYSSIS VZW
Drupal Mountain Camp 2025 en
in Davos, Switzerland
by Drupal Switzerland
FOSS Backstage Design en
in Berlin, Germany
by Plain Schwarz UG
t3chfest es
in Madrid, Spain
by Volunteers
NLLGG Bijeenkomst online
nl/en
by NLLGG
in Utrecht
(Netherlands)
Hack in Socs
in Milano, Italy
by Hackers
Arduino Day Palermo online
en/it
in
Palermo ,
Italy
by Sputnix.it
Chemnitzer Linuxtage de
in Chemnitz, Germany
by Individual Network Chemnitz
Document Freedom Day online
FOSSGIS 2025 de
in Münster, Germany
by FOSSGIS e.V.
FOSSGIS-Konferenz de
in Hamburg, Germany
by FOSSGIS e.V.
OC3 online
en
in
Berlin ,
Germany
by Edgeless Systems
OC3 online
en/de
by Edgeless Systems
in Berlin
(Germany)
WMA Hackathon 2025 online
en/fr
by Wiki Mentor Africa
Linux-Install-Party de
in Bielefeld, Germany
by Hackerspace Bielefeld e.V.
International Open Hackerspace Day 2025
Linux Meeting Palermo online
en/it
in
Palermo ,
Italy
by Sputnix.it
Fediforum online
en
by Volunteers
DANTE Frühjahrstagung de
in Darmstadt, Germany
by DANTE e.V.
Drupal Iberia Cáceres es
in Cáceres, Spain
by Comunidad Drupal
Linuxwochen Eisenstadt online
de
in
Eisenstadt ,
Austria
19 Sesja Linuksowa online
pl
in
Wrocław ,
Poland
by Akademickie Stowarzyszenie Informatyczne
PyCon Austria en
in Eisenstadt, Austria
by Python Austria
sambaXP en
in Göttingen, Germany
by SerNet GmbH
4. Open Data Barcamp 2025
in Erfurt, Germany
by Bertelsmann Stiftung
foss-north en
in Gothenburg, Sweden
by Free Open Source Software North Conferences ek.för.
foss-north en
in Gothenburg, Sweden
by Free Open Source Software North Conferences ek.för.
Drupal Dev Days 2025 online
en
by Drupal User Group Belgium
in Leuven
(Belgium)
Easterhegg de
in Hamburg, Germany
by Chaos Computer Club Hamburg
Hardware Freedom Day online
GLT25 en/de
in Graz, Austria
by Verein der Grazer Linuxtage
Linux App Summit (LAS) online
en
in
Tirana ,
Albania
by KDE Community , GNOME Foundation
Augsburger Linux-Infotag de
in Augsburg, Germany
by Linux User Group Augsburg (LUGA)
Community Organiser Matrix Hackathon en
in London, United Kingdom
by Campaign Lab
Debian Bug Squashing Party en
in Tildonk, Belgium
by Ben Hutchings
stackconf 2025 en
in Munich, Germany
by NETWAYS Event Services GmbH
OpenSearchCon Europe 2025 en
in Amsterdam, Netherlands
by OpenSearch Project, The Linux Foundation
BachoTeX en/pl
in Brodnica, Poland
by GUST
ElaCon 2025 en/de
in Alte Hölle, Germany
by Ela
PyCamp España
in Sevilla, Spain
by Python España
Wikimedia Hackathon en
in Istanbul, Turkey
by Wikimedia Foundation
Congreso LliureX ca/es
in Sant Vicent del Raspeig, Spain
by LliureX
PGConf.BE en
in Haasrode (Leuven), Belgium
by https://pgconf.be/index.html#about
Salmorejo Tech es
in Cordoba, Spain
by Aula Software Libre
FSCK2025 de
in Backnang, Germany
by Chaostreff Backnang e.V.
LibreCan 2025 es
in Santa Cruz de Tenerife, Spain
by LibreCan - Comunidad de Software Libre y Cultura Libre de Canarias
German Perl/Raku Workshop en/de
in Munich, Germany
by Perl Community
Rencontres Professionnelles du Logiciel Libre fr
in Lyon, France
by Ploss-Ra
OpenEduDay en/de
in Bern, Switzerland
by CH Open
NLLGG Bijeenkomst nl
in Utrecht, Netherlands
DORS/CLUC en
in Zagreb, Croatia
by HrOpen & Hulk
Helvetic Ruby en
in Geneva, Switzerland
by Dimiter Petrov, Hana Harencarova
Newline en
in Gent, Belgium
by Gent hackerspace
JdLL fr
in Lyon, France
by JdLL Team
Libre Graphics Meeting online
en
in
Nuremberg ,
Germany
by Strong Type Systems GmbH
CoSin en/fr/de/it
in Biel, Switzerland
by CCC-CH
Hackmeeting 0x1C online
en/it
by Hackers
in Cagliari
(Italy)
Open Hardware Summit online
en
in
Edinburgh ,
United Kingdom
T-DOSE nl/en
in Geldrop, Netherlands
by T-DOSE Foundation
Chaos Feminist Convention de
in Hamburg, Germany
by Haecksen e.V.
Fediforum online
en
by Volunteers
Flock online
en
in
Prague ,
Czech Republic
by Fedora Project
P.I.W.O. online
pl
in
Poznań ,
Poland
by Knyfyrtel Hackerspace Poznań
APELL Conference en
in Warsaw, Poland
by APELL
Capital Series Poland en/pl
in Warsaw, Poland
by OpenForum Europe
DevConf online
en
in
Brno ,
Czech Republic
by Red Hat
AtlanticaConf es
in A Coruña, Spain
by Grupo de Programadores e Usuarios de Linux (GPUL)
Berlin Buzzwords en
in Berlin, Germany
by Plain Schwarz UG
OW2Con'25 en
in Paris, France
23. Gulaschprogrammiernacht online
en/de
in
Karlsruhe ,
Germany
by Entropia e.V. - CCC Karlsruhe
UbuCon Europe en/es
in Malaga, Spain
by Ubuntu Volunteers
Opensouthcode en/es
in Malaga, Spain
by Volunteers
Swiss PGDay en/de
in Rapperswil SG, Switzerland
by Swiss PostgreSQL Users Group
openSUSE Conference en
in Nürnberg, Germany
by openSUSE project
EndOf10 Installationsparty de
in Villingen-Schwenningen, Germany
by LUG-VS e.V.
Pass the SALT en
in Lille, France
HOA25 en/de
in Gifhorn, Germany
by Stratum 0 e.V.
Camp++ en
in Komárom, Hungary
by H.A.C.K.
FAT25 en/de
in Aalen, Germany
by Hackwerk Aalen
Tübix de
in Tübingen, Germany
by Tübix e.V.
FOSS4G Europe 2025 en
in Mostar, Bosnia and Herzegovina
by OSGeo, Ecoplan, University of Mostar
DebConf '25 en
in Brest, France
Fedicamp online
en/de
in
Gedelitz ,
Germany
by No OU.
Bornhack da/en
in Funen, Denmark
VVoid Camp en/de
in Perlesreut, Germany
by hinterVVoidler e. V.
SeeZeit 2025 de
in Mainhausen, Germany
by Chaos Computer Club Frankfurt e.V.
GUADEC en
in Brescia, Italy
by GNOME Foundation
TDF4 de
in Tübingen, Germany
by Chaostreff Tübingen (CTT)
Matrix Community Summit en/de
in Berlin, Germany
by Matrix Community Events
Camp CHATONS fr
in Chameyrat, France
by Groupe de Travail "Camp CHATONS" du collectif
why2025 nl/en
in Geestmerambacht, Netherlands
by IFCAT
GopherCon UK en
in London, United Kingdom
FrOSCon 20 de
in Sankt Augustin, Germany
by FrOSCon e.V.
Scaladays en
in Lausanne, Switzerland
Hack'n'Sun de
in Bonn, Germany
by Teckids-Gemeinschaft
ConTeXt meeting en
in Chmielno, Poland
by context group, Ryszard Kubiak
Nix Camp
in Liverpool, United Kingdom
by Matthew Croughan
ChaosZeltZone 2025 cs/en/de
in Pöhl, Germany
by Chaostreff Chemnitz e.V.
WAMP de
in Rotenhain, Germany
by Westwoodlabs e.V.
Cebulacamp en
in Wrocław, Poland
by Polish hackerspaces
End Summer Camp it
in San Dona' di Piave, Italy
by SM4X
End Summer Camp
in Venezia Tessera, Italy
NixCon online
en
in
Rapperswil ,
Switzerland
by Volunteers
InselChaos 2025 de
in Bergen auf Rügen, Germany
by Port39 e.V. Stralsund
KDE Akademy 2025 en
in Berlin, Germany
by KDE e.V.
preCICE Workshop en
in Hamburg, Germany
by preCICE team
pgDay UK
in London, United Kingdom
by PostgreSQL Europe
Workshop-Tage 2025 en/de
in Zürich, Switzerland
by Verein CH-Open
KiCon Europe en
in Bochum, Germany
MRMCD online
en/de
by MRMCD e.V.
in Darmstadt
(Germany)
ORConf en
in Valencia, Spain
by FOSSi Foundation
HackFest nl/en
in Enschede, Netherlands
by Dave Borghuis
Open-Access-Tage
in Konstanz, Germany
by Organisationsteam
DrupalCamp Spain 2025 es
in Santiago de Compostela, Spain
by Drupal Community
Kielux online
de
in
Kiel ,
Germany
by Kieler Linux-Initiave
Hacks on the Beach 2025 en/de
in Flensburg, Germany
by Chaos Computer Club Flensburg e.V.
Datenspuren online
en/de
in
Dresden ,
Germany
by Netzbiotop Dresden e. V.
BalCCon2k25 en
in Novi Sad, Serbia
by LUGoNS
Software Freedom Day
Software Freedom Day @HSBXL online
en
in
Brussels ,
Belgium
by Hackerspace Brussels
Mega-Knowledgecamp en/fr/de
in Saarbrücken, Germany
by AStA HTW Saar & Hacksaar/TKS e.V.
Open Tech Day en
in Nuremberg, Germany
by NETWAYS Event Services GmbH
SCS Summit 2025 en/de
in Berlin, Germany
by Forum SCS Standards
eLSA Symposium en
in Göttingen, Germany
by emlix GmbH
Hackmeeting 2025 en/es
in Zaragoza, Spain
by Hackers
Quellcode en/de
in Nuremberg, Germany
Freedom not Fear en
in Brussels, Belgium
LinuxDay de
in Dornbirn, Austria
by Linux User Group Vorarlberg
Ich sitze in dem Auto und die Logik liebt mich de
in Radebeul, Germany
by Mondstern
All Systems Go! online
en
in
Berlin ,
Germany
OSC Luxembourg en
in Belval, Esch-sur-Alzette, Luxembourg
by House of Cybersecurity and CLUSIL Open Source Working Group
FAIR in Action en
in Göttingen , Germany
by eResearch Alliance and IndiScale GmbH
Festa do Software Livre pt
in Porto, Portugal
by Associação Nacional para o Software Livre
Berliner Fediverse Tag online
en/de
in
Berlin ,
Germany
by Fediverse Stammtisch Berlin
Spätzlecoding Night en/de
in Stuttgart, Germany
by Klasse & Methode - IT Kollektiv Stuttgart
LinuxDays 2025 cs/en
in Prague, Czech Republic
by FIT ČVUT
NixOS Transylvania Sprint en
in Adrianu Mare, Romania
by Márton Boros, Paul Meyer
OpenSSL Conference
in Prague, Czech Republic
Penpot Fest online
en/es
in
Madrid ,
Spain
by Penpot Team
EuroRust online
en
in
Paris ,
France
by Mainmatter
Interfug 2025 de
in Chemnitz, Germany
by Chaostreff Chemnitz e.V.
OpenStreetMap Hackweekend Berlin en/de
in Berlin, Germany
by gislars, Christopher
The Matrix Conference en
in Strasbourg, France
by The Matrix.org Foundation
Open Transport Community Conference 2025 en
in Vienna, Austria
by Open Transport community
OpenFest online
bg/en
in
Sofia ,
Bulgaria
by Open Projects Foundation
CiviCamp en
in Lunteren, Netherlands
by CiviCooP
Ubuntu Summit 25.10 online
en
in
London ,
United Kingdom
by Canonical community team
Distribits 2025 online
en
in
Düsseldorf ,
Germany
Jesień Linuksowa 2025 online
pl
in
Rybnik ,
Poland
by Polish Linux Users Group (PLUG)
Software Freedom Kosova en
in Prishtina, Kosova
by FLOSSK
Linux Day online
en/it
in
Palermo ,
Italy
by Sputnix.it
Linux Day 2025
PyConFR 2025 en/fr
in Lyon, France
by AFPy
eth0 nl/en
in Someren, Netherlands
by Stichting eth0
DHCP 2025 en/de
in Heilbronn, Germany
by Code for Heilbronn e.V.
Hack the Difference de
in Kassel, Germany
by Aktion Agrar
OpenAlt online
cs
in
Brno ,
Czech Republic
ALASCA Summit 2025 en
in Dresden , Germany
by ALASCA - Association for Operational, Open Cloud Infrastructures e.V.
Mautic World Conference online
en
in
London ,
United Kingdom
by Mautic
SFSCON en
in Bozen, Italy
by NOI Techpark
Tux-Tage online
de
by linuxguides.de
(Germany)
DENOG17 online
en/de
in
Essen ,
Germany
by DENOG e.V.
Open Science Days online
in
Berlin ,
Germany
by Max Planck Digital Library
InnerSource Summit online
en
in
Berlin ,
Germany
by InnerSource Commons
ecoCompute conference en
in Berlin, Germany
by Multiple Organisers
State Of The Map EU en
in Dundee, United Kingdom
by OpenStreetMap UK
NooK de
in Lübeck, Germany
by Der Allgemeine Studierendenausschuss (AStA) der Universität zu Lübeck, Chaotikum e.V.
Capitole du Libre fr
in Toulouse, France
by Toulibre
OpenForum Academy Symposium 2025 en
in Rio de Janeiro, International
by OpenForum Europe
Open Source Monitoring Conference en/de
in Nuremberg, Germany
by NETWAYS Event Services GmbH
OERcamp.global online
en
by Agentur J&K
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