| 🗓 | January 17, 2025 | CERN PGDay 2025 |
| | CERN, CH | The CERN PGDay builds on the experience of past PostgreSQL events at CERN and a newly establish collaboration with SwissPUG. |
| 🗓 | January 24-25, 2025 | PyCon+Web 2025 |
| | Cambridge Innovation Center, Berlin, DE | Where Python meets Web |
| 🗓 | January 28-29, 2025 | Prague PostgreSQL Developer Day 2025 |
| | FIT, České Vysoké Učení Technické, Dejvicích, Prague, CZ | The 17th year of the “Prague PostgreSQL Developers Day” (P2D2) conference, devoted to PostgreSQL and organized by CSPUG. |
| 🗓 | January 30, 2025 | Community Health Analytics in Open Source Software - CHAOSScon Europe 2025 |
| | Bedford Hotel & Congress Centre, Brussels, BE | Learn about open source project health metrics and tools used by open source projects, communities, and engineering teams to track and analyze their community work. |
| 🗓 | February 1-2, 2025 | FOSDEM 2025 *NO FEE* |
| | Université libre de Bruxelles, Brussels, BE | FOSDEM is a free event for software developers to meet, share ideas and collaborate. Every year, thousands of developers of free and open source software from all over the world gather at the event in Brussels. You don't need to register. Just turn up and join in! |
| 🗓 | February 3-5, 2025 | Inkscape Summit Frankfurt 2025 |
| | Frankfurt, DE | These important events give the contributors of Inkscape a place where they can get some work done. |
| 🗓 | February 4-5, 2025 | State of Open Con - SOOCon25 |
| | Sancroft, St. Paul's, London, GB | UK's Open Technology Conference: Open Source Software, Open Hardware, Open Data, Open Standards, & AI Openness. |
| 🗓 | February 21-22, 2025 | FOSS Fest 2025: International Hackathon *NO FEE* |
| | OpenSource Science B.V., Breda, NL | Groups of international students can participate one or both days. The event will be coordinated by OS-SCi in conjunction with FOSS partners and universities. |
| 🗓 | February 21-22, 2025 | Open Source Conference 2025 Tokyo/Spring *NO FEE* |
| | Komazawa University 駒澤大学, Tokyo 東京, JP | Get the latest information happening in the world of open source at OSC2025. All visitors are welcome at this free conference. |
| 🗓 | February 22, 2025 | DjangoCongress JP 2025 *NO FEE* |
| | live stream only, Tokyo 東京, JP | DjangoCongress JP is a conference for the Django Web framework in Japan. If you are a seasoned Django pro or just starting, DjangoCongress JP is for you. Our goal is for attendees to meet, talk, share tips, discover new ways to use Django, and, most importantly, have FUN. |
| 🗓 | February 22-23, 2025 | FOSS Hack 2025 *NO FEE* |
| | Online and Simultaneously in several cities in India | FOSS Hack is a hybrid-mode hackathon organized by the FOSS United Foundation to promote the creation and use of FOSS in India. |
| 🗓 | February 28-March 1, 2025 | Winterkongress |
| | Casinotheater, Winterthur, CH | Winterkongress is the most important event for digital freedom in Switzerland. It is non-commercial and hosted by and for the community. |
| 🗓 | March 1, 2025 | DrupalCamp England |
| | Faculty of Law, Cambridge, GB | Welcome to DrupalCamp England, a one-day event celebrating the first Drupal-focused gathering in the country for five years! |
| 🗓 | March 1, 2025 | FOSS United Linux Install Fest |
| | Amity University, Lucknow, IN | The FOSS United Foundation, founded in 2020, is a non-profit organization dedicated to fostering Free and Open Source Software (FOSS) projects and communities in India. |
| 🗓 | March 1-3, 2025 | PyCon APAC 2025 |
| | Ateneo de Manila University, Quezon City, PH | It brings together Python developers, enthusiasts, and industry leaders from across APAC for a unique conference experience. Hosted annually in one of the participating countries, PyCon APAC serves as a key platform for fostering collaboration, learning, and innovation. |
| 🗓 | March 5-7, 2025 | PGConf India 2025 |
| | Sheraton Grand Hotel, Bengaluru, Karnataka, IN | With growing popularity and adoption of PostgreSQL, PGConf India has become one of the largest events in this part of the world. We expect more than 400 delegates to attend this year’s event. |
| 🗓 | March 6-9, 2025 | Southern California Linux Expo - SCaLE 22x |
| | Convention Center, Pasadena, CA, US | SCaLE is the largest community-run open-source and free software conference in North America. |
| 🗓 | March 6-7, 2025 | Postgres @SCaLE 22x |
| | Convention Center, Pasadena, CA, US | PostgreSQL@SCaLE will present talks designed for a general audience of web developers, sysadmins, DBAs and open source users. |
| 🗓 | March 6-7, 2025 | Planet Nix @SCaLE 22x |
| | Convention Center, Pasadena, CA, US | The Earth chapter of Planet Nix is assembling, and we need you! This is your chance to represent your beautifully unpredictable planet and dive into the power of Nix OS. |
| 🗓 | March 8, 2025 | BarCamp Bangalore 2025 *NO FEE* |
| | Takshashila Institution ದಿ ತಕ್ಷಶಿಲ ಇನ್ಸ್ಟಿಟ್ಯೂಷನ್, Bengaluru, Karnataka, IN | BarCamp Bangalore is an unconference - an ad hoc gathering born from the desire for people to share and learn in an open environment. |
| 🗓 | March 10-12, 2025 | FOSSBackstage 2025 |
| | Paul-Lincke-Ufer 21, Berlin, DE | The two-day conference brings together the brightest minds in the industry to discuss and explore all about FOSS community, management and compliance. |
| 🗓 | March 10-13, 2025 | Netdev 0x19 |
| | Zagreb Fair, Zagreb, HR | A conference of the netdev community, by the netdev community, for the netdev community. Linux kernel networking & user space utilization of the interfaces to the Linux kernel networking subsystem are the focus. |
| 🗓 | March 10-14, 2025 | SuSECON 2025 |
| | Universal Resort, Orlando, FL, US | From keynote speeches to breakout sessions, SuSECON 2025 offers a dynamic lineup of events designed to inspire, educate and connect. |
| 🗓 | March 14, 2025 | openSuSE Early Adopter Tech Summit 2025 |
| | Universal Resort, Orlando, FL, US | People interested in the development of open-source software and community software development are encouraged to submit a talk and attend this Summit. |
| 🗓 | March 13-15, 2025 | FOSSASIA Summit 2025 |
| | True Digital Park West, Bangkok กรุงเทพมหานคร, TH | The FOSSASIA Summit is an annual event that has been at the forefront of open technologies for over 15 years, bringing together a global community of developers, innovators, enterprises, and educators. |
| 🗓 | March 13-15, 2025 | t3chfest 10 |
| | University Carlos III, Madrid, ES | t3chfest is a non-profit event organized by students and alumni of the Universidad Carlos III de Madrid. We have prepared a diverse and complete program for t3chfest 10, with talks of general interest and also more technical talks, inspiring and deep. |
| 🗓 | March 14-16, 2025 | FOSSMeet'25 |
| | National Institute of Technology, Kozhikode, Kerala केरल, IN | Since its inception in 2005, FOSSMeet has been a premier platform for promoting Free and Open Source Software, fostering innovation, collaboration, and open standards. |
| 🗓 | March 18, 2025 | Nordic PGDay 2025 |
| | Marriott Hotel, København, DK | Nordic PGDay was started in 2014 in order to bring the PostgreSQL community in the Nordic region together. |
| 🗓 | March 18-20, 2025 | Linux Foundation Member Summit |
| | Napa, CA, US | An annual gathering for Linux Foundation members that fosters collaboration, innovation, and partnerships among the leading projects and organizations working to drive digital transformation with open source technologies. |
| 🗓 | March 20, 2025 | pgDay Paris 2025 |
| | l'Espace Saint-Martin, Paris, FR | pgDay Paris is all about making sure everyone feels included, treated fairly, and valued in the PostgreSQL community. |
| 🗓 | March 21, 2025 | Open Source Day - OSDay 2025 *NO FEE* |
| | Nana Bianca, Florence, IT | Open Source Day is an international conference dedicated to open-source solutions. The event aims to introduce open-source technologies to public and business institutions, promoting them as secure, efficient, and cost-effective alternatives to proprietary software. |
| 🗓 | March 22, 2025 | BiharFOSS 2025 |
| | IIT Patna, Bihāra बिहार, IN | Conference promoting & strengthening the Free and Open Source Software (FOSS) ecosystem. |
| 🗓 | March 22-23, 2025 | Chemnitzer Linux-Tage 2025 |
| | Technischen Universität, Chemnitz, DE | We organise the Chemnitzer Linux-Tage because we want to give the people an understanding of Linux and Open Source and it is a lot of fun to organise such a diverse and popular event. |
| 🗓 | March 24-26, 2025 | Linux Storage | Filesystem | MM & BPF Summit |
| | Delta Hotels, Montréal, QC, CA | Gathers the foremost development and research experts and kernel subsystem maintainers to map out and implement improvements to the Linux filesystem, storage, and memory management subsystems that will find their way into the mainline kernel and Linux distributions in the next 24-48 months. |
| 🗓 | March 26-29, 2025 | FOSSGIS-Konferenz 2025 |
| | Technische Universität, Hamburg, DE | The FOSSGIS Conference is the leading conference in the D-A-CH region for free and open source software for geoinformation systems as well as for the topics of open data and OpenStreetMap. |
| 🗓 | April 1-4, 2025 | KubeCon + CloudNativeCon + BackstageCon Europe |
| | Excel, Royal Docks, London, GB | The Cloud Native Computing Foundation's flagship conference brings together adopters and technologists from leading open source and cloud native communities. |
| 🗓 | April 4-6, 2025 | conf.kde.in 2025 |
| | Dhirubhai Ambani University (DA-IICT), Gandhinagar, Gujarat, IN | conf.kde.in aims to attract new KDE Community members, as well as seasoned developers. The contents of the conference provide updates on what is going on in the KDE Community and teaches newcomers how to start making meaningful contributions. |
| 🗓 | April 5-6, 2025 | Sesja Linuksowa *NO FEE* |
| | Politechnika Wrocławska, Wrocław, PL | This is the oldest free conference in Poland devoted to Open Source solutions and the latest trends in the GNU/Linux family systems. |
| 🗓 | April 5, 2025 | Linuxwochen Eisenstadt 2025 @PyCon Austria *NO FEE* |
| | University of Applied Sciences Burgenland, Eisenstadt, AT | Linuxwochen Eisenstadt gives you the opportunity to get to know the versatility of OpenSource, bring your own knowledge up to date and deepen your experience. The event offers a lecture program, an exhibition area and workshops. |
| 🗓 | April 6-7, 2025 | PyCon Austria *NO FEE* |
| | University of Applied Sciences Burgenland, Eisenstadt, AT | With a focus on beginner-friendly workshops, tutorials, and approachable talks, we aim to bridge the gap between programming beginners and experienced Pythonistas. |
| 🗓 | April 7-8, 2025 | jsday 2025 |
| | Hotel Savoia Regency, Bologna, IT | jsday 2025 marks the 14th edition of Italy's premier JavaScript conference, a key event for developers and tech enthusiasts eager to explore the latest in JavaScript trends, tools, and best practices. |
| 🗓 | April 7-8, 2025 | sambaXP 2025 |
| | Hotel FREIZEIT IN, Göttingen, DE | Samba eXPerience is the yearly meeting of the Samba team and the ecosystem of developers, users and vendors all around the globe since 2002 - organized by SerNet. |
| 🗓 | April 14-15, 2025 | foss-north 2025 |
| | Chalmers Conference Centre, Göteborg, SE | foss-north is a freed / open source conference covering both software and hardware from the technical perspective. We provide a meeting place for the Nordic foss communities and will bring together great speakers with great audiences. |
| 🗓 | April 14-16, 2025 | 2025 EuroLLVM |
| | Intercontinental Hotel, Berlin, DE | The Euro LLVM Developers' Meeting is a bi-annual gathering of the entire LLVM Project community. The conference is organized by the LLVM Foundation and many volunteers within the LLVM community. |
| 🗓 | April 23-25, 2025 | PyCon DE & PyData 2025 |
| | Darmstadtium, Darmstadt, DE | Welcome to PyCon DE & PyData - Europe's largest Python community gathering! Join over 1,500 expected attendees for an extraordinary celebration of Python technology and data science. |
| 🗓 | April 23-25, 2025 | PyCon Lithuania 2025 |
| | SMK University of Applied Science, Vilnius, LT | PyCon Lithuania is the biggest Python and PyData event in the Baltics and Nordics. We talk about Python applications in data, web and other domains. |
| 🗓 | April 23-27, 2025 | DjangoCon Europe 2025 *NO FEE* |
| | Talbot Hotel, Stigh Lorgan, Baile Átha Cliath, IE | This is the 17th edition of the Conference and it is organized by a team made up of Django practitioners from all levels. We welcome people from all over the world. |
| 🗓 | April 24-26, 2025 | Grazer Linuxtage 2025 *NO FEE* |
| | Technische Universität, Graz, AT | Grazer Linuxtage is an annual conference around Open source software and hardware. Participation is free of charge and possible without reservation! |
| 🗓 | April 25-26, 2025 | C++ Conf Japan カンファレンス 2025 |
| | Toranomon Hills Mori Tower 虎ノ門ヒルズ森タワー, Tokyo 東京, JP | Dedicated to advancing C++ programming in Japan, connecting developers, and sharing knowledge. Founded in 2020, we bring together developers, researchers, and enthusiasts to share knowledge and experience. |
| 🗓 | April 25-26, 2025 | Linux App Summit - LAS 2025 *NO FEE* |
| | Ambasada e Paqes, Tiranë, AL | The Linux App Summit (LAS) brings the global Linux community together to learn, collaborate, and help grow the Linux application ecosystem. Through talks, panels, and Q&A sessions, we encourage attendees to share ideas, make connections, and join our goal of building a common app ecosystem. |
| 🗓 | April 25-27, 2025 | LinuxFest NorthWest - LFNW 2025 |
| | Bellingham Technical College, WA, US | LFNW features presentations and exhibits on free and open source topics, as well as Linux distributions & applications, InfoSec, and privacy; something for everyone from the novice to the professional! |
| 🗓 | April 26, 2025 | Festival Latinoamericano de Instalación de Software Libre - FLISoL 2025 *NO FEE* |
| | Simultaneously in several
cities in Latin America | FLISoL is the largest Free software promoting event in Latin America and is aimed at all kinds of audiences: students, academics, businessmen, workers, public officials, enthusiasts and even people who do not have much computer knowledge. |
| 🗓 | April 26, 2025 | Linux-Infotag Augsburger 2025 *NO FEE* |
| | Technischen Hochschule, Augsburg, DE | The Linux-Infotag Augsburg is a free event where visitors will be able to find out about Linux and open source software, as well as about digital society, creative applications of technology, science and education. |
| 🗓 | May 2-4, 2025 | Wikimedia Hackathon 2025 *NO FEE* |
| | Renaissance Polat Istanbul Hotel, Istanbul, Turkey | The Wikimedia Hackathon is an annual event that brings the global technical community together to connect and have technical discussions, hack on existing projects and explore new ideas for others. |
| 🗓 | May 6, 2025 | PGDay Belgium 2025 *NO FEE* |
| | Hogeschool UC Leuven-Limburg, Campus Proximus, Haasrode, BE | Take the opportunity to meet with other people interested in PostgreSQL in Belgium. |
| 🗓 | May 6-7, 2025 | Qt World Summit - QtWS2025 |
| | Showpalast, München, DE | Premiere event for the global Qt community where cutting-edge technology meets vibrant festivity. |
| 🗓 | May 8, 2025 | OpenExpo Europe 2025 |
| | La Nave, Madrid, ES | OpenExpo Europe has been one of the disclosure windows in Technological Innovation, Digital Transformation and Open Source for 11 years. |
| 🗓 | May 8-9, 2025 | PostgreSQL Conference Germany 2025 |
| | Marriott Hotel, Berlin, DE | 9th Annual PostgreSQL Conference Germany. The conference is organised by PostgreSQL Europe to be an important meeting and cooperation point for users both in and out of Europe. |
| 🗓 | May 10, 2025 | LibreCan 2025 *NO FEE* |
| | Cervecería Leffe Bulevar, Santa Cruz de Tenerife, ES | Curious minds about free software, free culture, digital rights and ethical technology in the Canary Islands. |
| 🗓 | May 10-11, 2025 | TuxCon 2025 *NO FEE* |
| | Technical University Технически Университет филиал Пловдив ул., Plovdiv Пловдив, BG | TuxCon is an annual event about free and open source software and hardware. The entrance is free for all visitors. TuxCon is a community event and it is organized by volunteers. |
| 🗓 | May 13-16, 2025 | PostgreSQL Development Conference 2025 |
| | Plaza Centre-Ville, Montréal, QC, CA | PGConf.dev 2025 is where users, developers, and community organizers come together to focus on PostgreSQL development and community growth. |
| 🗓 | May 15-16, 2025 | phpday 2025 |
| | Hotel San Marco, Verona, IT | At phpday, attendees can explore the latest trends and best practices in PHP development, enhancing their technical skills and keeping their design and development teams at the forefront of industry innovation. |
| 🗓 | May 16, 2025 | PyGrunn 2025 |
| | Forum Groningen, NL | PyGrunn is the "Python and friends" developer conference with a local footprint and global mindset. Firmly rooted in the open source culture, it aims to provide the leaders in advanced internet technologies a platform to inform, inspire and impress their peers. |
| 🗓 | May 16-18, 2025 | GStreamer Spring Hackfest 2025 *NO FEE* |
| | Le LABO, Nice, FR | Join developers, community members, decision-makers, industry partners, researchers, students and anyone else interested in the GStreamer multimedia framework or Open Source and cross-platform multimedia. |
| 🗓 | May 21-23, 2025 | Dani Otvorenih Računarskih Sustava / Croatian Linux Users’ Conference - DORS/CLUC 2025 |
| | Visoko Učilište Algebra, Zagreb, HR | DORS/CLUC is the oldest and biggest regional conference that covers free and open source software, open standards, and the Linux operating system. For the last 30 years, DORS/CLUC has brought together many prominent individuals and companies from the free and open source software community. |
| 🗓 | May 23-25, 2025 | Newline Hacker Conference *NO FEE* |
| | Stadsmakers, Hackerspace Gent, BE | To celebrate hackerspace.gent and the hacker community once a year, we organize the "Newline" hacker conference. |
| 🗓 | May 24-25, 2025 | Les 26es Journées du Logiciel Libre - JdLL 2025 *NO FEE* |
| | l'Ecole Normale Supérieure (ENS) - site René Descartes, Lyon, FR | An active conference since 1998, Journées du Logiciel Libre is a weekend event that welcomes over a thousand visitors: from those who are curious to the curious people from all stripes of life who show up. Whatever your level of knowledge, bring yourself to JdLL and share your ideas; share your projects to build a freer tomorrow. |
| 🗓 | May 28-30, 2025 | KiCon North America 2025 |
| | Qualcomm Institute, San Diego, CA, US | The KiCad conference, a North American conference to discuss and develop all things KiCad. |
| 🗓 | May 28-31, 2025 | PyCon Italia 2025 |
| | Grand Hotel Mediterraneo, Bologna, IT | PyCon Italia is the official Italian event dedicated to the Python programming language, and today it stands as one of the most important Python events in Europe. |
| 🗓 | May 28-31, 2025 | Libre Graphics Meeting - LGM 2025 |
| | Karl-Bröger-Zentrum, Nürnberg, DE | The Libre Graphics Meeting is an annual meeting on Free/Libre and Open Source software for graphics. |
| 🗓 | May 31, 2025 | Open Source Conference 2025 Nagoya *NO FEE* |
| | Trade & Industry Center [Fukiage Hall] 中小企業振興会館 【吹上ホール】, Nagoya 名古屋, JP | Get the latest information happening in the world of open source at OSC2025. All visitors are welcome at this free conference. |
| 🗓 | May 31-Jun 1, 2025 | Technical Dutch Open Source Event - T-DOSE 2025 *NO FEE* |
| | De Weeffabriek (Centrum Hofdael), Geldrop, NL | T-DOSE is a free and yearly event held in The Netherlands (Eindhoven / Brainport region) to promote use and development of Open Source Software. During this event, Open Source projects, developers and visitors can exchange ideas and knowledge. |
| 🗓 | June 3-4, 2025 | PG Day France 2025 |
| | Van der Valk Congres & Spa Hotel, Mons, BE | The PG Day France is the annual conference of the French-speaking PostgreSQL community. |
| 🗓 | June 5-8, 2025 | Flock to Fedora 2025 |
| | Vienna House, Prague, CZ | Flock to Fedora is the premier annual conference for the Fedora Project contributor community. It’s where our contributors come together from around the world to connect, learn, and collaborate. |
| 🗓 | June 7, 2025 | XIV Poznańska Impreza Wolnego Oprogramowania - P.I.W.O. *NO FEE* |
| | Centrum Wykładowe Politechniki Poznańskiej, Poznań, PL | Poznańska Impreza Wolnego Oprogramowania (P.I.W.O.) is an open, free conference organized at the Poznań University of Technology, the main goal of which is to popularize the idea of free and open-source software and to promote systems from the family. |
| 🗓 | June 7-9, 2025 | ZüriHac 2025 *NO FEE* |
| | Eastern Switzerland University of Applied Sciences (OST), Rapperswil-Jona campus, SG, CH | ZüriHac is the biggest Haskell community event in the world: a completely free, three-day grassroots coding festival co-organized by the Zürich Friends of Haskell and the OST Eastern Switzerland University of Applied Science. |
| 🗓 | June 10, 2025 | 2025 AsiaLLVM *NO FEE* |
| | The Westin Hotel, Tokyo 東京, JP | The Asia LLVM Developers' Meeting is a tri-annual gathering of the entire LLVM Project community. The conference is organized by the LLVM Foundation and many volunteers within the LLVM community. |
| 🗓 | June 11-12, 2025 | FreeBSD Developer Summit 2025 |
| | University of Ottawa, CA | The two-day event takes place June 11-12, 2025, consisting of developer discussion sessions, vendor talks, and working groups. |
| 🗓 | June 11-14, 2025 | BSDCan 2025 |
| | University of Ottawa, CA | BSDCan is the definitive BSD event in North America and welcomes BSD Unix developers, administrators, and users of every level of experience. |
| 🗓 | June 12-14, 2025 | DevConf.CZ *NO FEE* |
| | Vysoké Učení Technické v Brně (VUT), Brno, CZ | DevConf.CZ is an annual, free, Red Hat-sponsored technology conference for users, operators, administrators, and contributors to Free and Open Source technologies. There is no admission or ticket charge for DevConf.CZ events. |
| 🗓 | June 17-18, 2025 | ObjectWeb and Orientware Conference - OW2Con'25 *NO FEE* |
| | Orange Innovation Gardens, Paris-Châtillon, FR | An international meeting of developpers, IT companies, academics and non-profit organizations, OW2con brings together the entire open source community, during two days of presentations ranging from tech topics to business and ethical issues of open source. |
| 🗓 | June 20-21, 2025 | OpenSouthCode 2025 *NO FEE* |
| | La Térmica, Málaga, ES | OpenSouthCode is a free event to promote and publicize open technologies: free software/hardware and opensource that has been held in Málaga since 2016. |
| 🗓 | June 20-21, 2025 | UbuCon Europe @OpenSouthCode 2025 *NO FEE* |
| | La Térmica, Málaga, ES | Inspired by the fantastic work of UbuCon teams across North America, Asia, and Latin America, we are taking things to the next level -bringing UbuCon Europe back as a co-located event at OpenSouthCode 2025! |
| 🗓 | June 23-25, 2025 | Open Source Summit North America |
| | Convention Center, Denver, CO, US | Open Source Summit is the premier event for open source developers, technologists, and community leaders to collaborate, share informatio, solve problems, and gain knowledge, furthering open source innovation and ensuring a sustainable open source ecosystem. |
| 🗓 | June 26–27, 2025 | Swiss PGDay 2025 |
| | Eastern Switzerland University of Applied Sciences (OST), Rapperswil-Jona campus, SG, CH | This conference is all about PostgreSQL - the world's most advanced open source database. Take the opportunity to meet with other people interested in PostgreSQL in Switzerland. |
| 🗓 | June 26-28, 2025 | openSuSE Conference - oSC 2025 *NO FEE* |
| | Z-Bau, Nürnberg, DE | The openSUSE Conference is an annual gathering of the openSUSE Project and Open Source Communities. Known as oSC, it features a blend of virtual and in-person presentations as well as workshops and social gatherings. |
| 🗓 | July 1-3, 2025 | Pass the SALT - PTS2025 *NO FEE* |
| | Université Catholique, Lille, FR | Dedicated to Free Software and Security. Since 2018. 3 days of talks & workshops. |
| 🗓 | July 5, 2025 | Open Source Conference 2025 Hokkaido *NO FEE* |
| | Sapporo Business Inovation Center 札幌市産業振興センタ, Hokkaido 北海道, JP | Get the latest information happening in the world of open source at OSC2025. All visitors are welcome at this free conference. |
| 🗓 | July 5, 2025 | Tübix Linuxtag *NO FEE* |
| | Wilhelm-Schickard-Institut für Informatik, Tübingen, DE | The Tübix could be something for you if you: - want to learn something from others - want to show or teach others something - are an expert / professional / veteran / master - are a newbie / beginner / switcher / interested party - want to visit a computer museum at the same time. |
| 🗓 | July 7-13, 2025 | DebCamp25 |
| | IMT Atlantique Bretagne-Pays de la Loire, Brest, FR | DebCamp is the hacking session right before DebConf. DebCamp usually occurs in the week before DebConf itself. It’s a week for Debian contributors to focus on their Debian-related projects, tasks, or problems uninterrupted. |
| 🗓 | July 14-20, 2025 | DebConf25 |
| | IMT Atlantique Bretagne-Pays de la Loire, Brest, FR | DebConf is the annual conference for Debian contributors and users interested in improving Debian. Previous Debian conferences have featured speakers and attendees from all around the world. |
| 🗓 | July 14-20, 2025 | EuroPython 2025 |
| | Congress Centre, Prague, CZ | This is the 24th edition of EuroPython, the oldest and longest-running volunteer-led Python programming conference on the planet! |
| 🗓 | July 18-20, 2025 | International TeX Users Group - TUG 2025: 46th annual meeting |
| | Hyatt Regency, Thiruvananthapuram, Kerala केरल, IN | Presentations covering the TeX world. |
| 🗓 | July 24-29, 2025 | GNOME Users And Developers European Conference - GUADEC 2025 |
| | Università degli Studi, Brescia, IT | GUADEC is the GNOME community's largest conference, bringing together hundreds of users, contributors, community members, and enthusiastic supporters for a week of talks and workshops. |
| 🗓 | July 25-27, 2025 | Apache Software Foundation Community Over Code Asia 2025 |
| | Conference Centre of Zhongguancun Autonomous Demonstration Zone, Beijing, CH | Community Over Code showcases the latest breakthroughs from ubiquitous Apache projects and upcoming innovations in the Apache Incubator, as well as open source development and leading community-driven projects the Apache way. |
| 🗓 | July 31-Aug 3, 2025 | FOSSY 2025 |
| | Portland State University, OR, US | Software Freedom Conservancy will again host a community oriented conference this coming summer. FOSSY (Free and Open Source Software Yearly) is focused on the creation and impact of free and open source software, uplifting contributors of all experience. |
| 🗓 | August 5, 2025 | Open Source Summit India 2025 |
| | International Convention Centre, Hyderabad, IN | Open Source Summit is the premier event for open source developers, technologists, and community leaders to collaborate, share information, solve problems, and gain knowledge, furthering open source innovation and ensuring a sustainable open source ecosystem. |
| 🗓 | August 9-10, 2025 | Conference for Open Source Coders, Users and Promoters - COSCUP 2025 *NO FEE* |
| | National Taiwan University of Science & Technology 國立臺灣科技大學, Taipei 台北市, TW | An annual conference organized by the Taiwanese open-source community since 2006. COSCUP aims to provide a platform to connect Open Source coders, users, and promoters while promoting FLOSS within the annual conference. The conference is free to attend and all the staff are volunteers. |
| 🗓 | August 11-15, 2025 | DjangoCon Africa 2025 |
| | Arusha, TZ | DjangoCon Africa will include 3 days of single-track talks, 2 days of workshops and sprints, and one day of touring for international visitors. |
| 🗓 | August 13-15, 2025 | GopherCon UK |
| | The Brewery, London, GB | The top community event in the UK for Go developers. |
| 🗓 | August 13, 2025 | Community Health Analytics in Open Source Software - CHAOSScon Africa 2025 |
| | The Zone Tech Park, Lagos, NG | Learn about open source project health metrics and tools used by open source projects, communities, and engineering teams to track and analyze their community work. |
| 🗓 | August 14-16, 2025 | Open Source Community Africa Festival - OSCAFEST'25 |
| | The Zone Tech Park, Lagos, NG | Open Source Festival is a high profile event that would attract student delegates, developers, designers and corporate organizations on a large scale with series of talks, workshops, and awareness of open-sourced developer tools. |
| 🗓 | August 16-17, 2025 | FrOSCon *NO FEE* |
| | Hochschule Bonn-Rhein-Sieg, Sankt Augustin, DE | Every year in August the computer science department of the University of Applied Sciences Bonn-Rhein-Sieg, supported by FrOSCon e.V., will organize an exciting program with talks and workshops for visitors of all ages. Thanks to our partners the conference is free for all! |
| 🗓 | August 18-22, 2025 | EuroSciPy 2025 |
| | AGH University of Kraków, PL | The EuroSciPy meeting is a cross-disciplinary gathering focused on the use and development of the Python language in scientific research. |
| 🗓 | August 22-29, 2025 | ConTeXt Meeting 2025 |
| | Ośrodek Wypoczynkowy KREFTA, Chmielno, PL | The meeting will host ConTeXt and LuaMetaTeX developers and users and gives you the opportunity to present your results, experiences and ideas on future development. |
| 🗓 | August 25-27, 2025 | Open Source Summit Europe 2025 |
| | RAI Convention Centre, Amsterdam, NL | The premier vendor-neutral conference in Europe for open source developers and technologists to collaborate, share information and learn about the latest technologies and innovations across open source. |
| 🗓 | August 28-30, 2025 | PyCon Kenya 2025 |
| | iHub, Nairobi, KE | Africa's largest Python conference, held in Nairobi, Kenya. Join us for a weekend of inspiring talks, informative workshops, and fun networking events. |
| 🗓 | August 30-31, 2025 | UbuCon Asia 2025 |
| | St. Xavier's College, Kathmandu, NP | UbuCon Asia is a community-organized conference connecting Ubuntu community in Asia. Join us in Kathmandu for two days memorable of conference that connects enthusiast, engineers, creators, researchers, entrepreneurs and contributors across Asia. |
| 🗓 | September 3-6, 2025 | LibreOffice Conference Budapest 2025 |
| | ELTE Faculty of Informatics, Budapest, HU | Join us in Budapest and tell us what you’re doing with LibreOffice! Presentations, case studies, workshops and technical talks will cover a topic in depth and last 30 minutes (including Q&A). |
| 🗓 | September 6-11, 2025 | Akademy 2025 *NO FEE* |
| | Technische Universität, Berlin, DE | The conference is expected to draw hundreds of attendees from the global KDE community to discuss and plan the community's future and its technologies. Many participants from the broad free and open source software community, as well as local organizations and software companies, will also attend. |
| 🗓 | September 8-12, 2025 | DjangoCon US 2025 |
| | voco Chicago Downtown Hotel, IL, US | DjangoCon US continues to be a hallmark event for the Django community, and strives to bring together the people behind the projects we all know and love. |
| 🗓 | September 9, 2025 | PGDay UK 2025 |
| | Cavendish Conference Centre, London, GB | PyCon UK is the main gathering for the Python community in the United Kingdom. It's a chance to connect with fellow developers, learn from experts, and immerse yourself in all things Python. PyCon UK is a community conference, entirely run by volunteers. |
| 🗓 | September 10-12, 2025 | KiCon Europe 2025 |
| | Rotunde, Bochum, DE | The KiCad conference, a European conference to discuss and develop all things KiCad. |
| 🗓 | September 11-14, 2025 | Apache Software Foundation Community Over Code North America 2025 |
| | Hyatt Regency, Minneapolis, MN, US | Community Over Code will feature four in-person days of sessions for ASF members, committers, and open source developers from around the world, focusing on Search, Big Data, Internet of Things, Community, Geospatial, Financial Tech, and many other topics. |
| 🗓 | September 12-16, 2025 | PyCon AU 2025 |
| | Pullman Melbourne On The Park, VIC, AU | PyCon AU is the national conference for the Python programming community, bringing together professional, student and enthusiast developers, sysadmins and operations folk, students, educators, scientists, statisticians, and many others besides, all with a love for workin with Python. |
| 🗓 | September 17-19, 2025 | Blender Conference - BCON25 |
| | Felix Meritis, Amsterdam, NL | Centered around Blender, the free/open-source 3D creation tool, its users, and its contributor community. The largest gathering of artists, developers and contributors to development. |
| 🗓 | September 18-20, 2025 | Kieler Open Source und Linux Tage - Kielux 2025 *NO FEE* |
| | Kieler Innovations- und Technologiezentrum, Kiel, DE | The event offers its visitors a balanced combination of a conference with lectures and hands-on workshops, exhibition and supporting program. The selection of topics and workshops is regularly diverse, so that both beginners and experts get maximum value when visiting the "Kielux". |
| 🗓 | September 19, 2025 | Software Freedom Day - SFD 2025 |
| | Simultaneously in several cities around the world | Software Freedom Day (SFD) is a worldwide celebration of Free and Open Source Software (FOSS). |
| 🗓 | September 19-20, 2025 | IndiaFOSS 2025 |
| | Nimhans Convention Centre, Bengaluru, Karnataka, IN | IndiaFOSS is an annual Free and Open Source Software (FOSS) conference, organised with passion and commitment by the FOSS United community. |
| 🗓 | September 19-22, 2025 | PyCon UK 2025 |
| | CONTACT theatre, Manchester, GB | PyCon UK is the main gathering for the Python community in the United Kingdom. It's a chance to connect with fellow developers, learn from experts, and immerse yourself in all things Python. PyCon UK is a community conference, entirely run by volunteers. |
| 🗓 | September 20, 2025 | PyCon China 2025 - 中国 Python 开发者大会 |
| | Shanghai University of International Business and Economics 上海对外经贸大学, CN | PyCon China (China Python Developer Conference) has been held regularly by the PyChina community since the first conference in 2011, and has now become a large-scale Python technology conference in China. |
| 🗓 | September 25-28, 2025 | EuroBSDCon 2025 |
| | Sveučilišta u Zagrebu, Zagreb, HR | This yearly conference gives the exceptional opportunity to learn about the latest news from the BSD world, witness contemporary deployment case studies, and meet personally other users and companies using BSD oriented technologies. |
| 🗓 | September 26–27, 2025 | PyCon JP 運営 2025 |
| | International Conference Center 国際会議場, Hiroshima 広島, JP | PyCon JP, an international conference on the programming language Python. |
| 🗓 | September 27, 2025 | Linuxday Vorarlberg 2025 *NO FEE* |
| | HTL Dornbirn, Vorarlberg, AT | Linuxday is an annual event aimed at people who are interested in Linux and other free software. |
| 🗓 | September 30-Oct 1, 2025 | All Systems Go! 2025 |
| | Alte Münze, Berlin, DE | All Systems Go! is a conference focused on foundational user-space Linux technologies. |