| 🗓 | | 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. | |
| 🗓 | | 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! | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | FOSSASIA Summit 2025 |
| True Digital Park West, Bangkok, 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. | |
| 🗓 | | 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. | |
| 🗓 | | FOSSMeet'25 |
| National Institute of Technology, Calicut, 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. | |
| 🗓 | | Nordic PGDay 2025 |
| Marriott Hotel, Copenhagen, Denmark | Nordic PGDay was started in 2014 in order to bring the PostgreSQL community in the Nordic region together. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | BiharFOSS 2025 |
| IIT Patna, Bihar, IN | Conference promoting free software. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | Sesja Linuksowa *NO FEE* |
| Politechnika Wrocławska, Wroclaw, PL | This is the oldest free conference in Poland devoted to Open Source solutions and the latest trends in the GNU/Linux family systems. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | foss-north 2025 |
| Chalmers Conference Centre, Gothenburg, SE | foss-north is a freed / open source conference covering both software and hardware from the technical perspective. | |
| 🗓 | | 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. | |
| 🗓 | | PyCon Lithuania 2025 |
| SMK University of Applied Science, Vilnius, LT | PyCon Lithuania is biggest Python and PyData event in Baltics and Nordics. We talk about Python applications in data, web and other domains. | |
| 🗓 | | DjangoCon Europe 2025 *NO FEE* |
| Talbot Hotel, Stillorgan, Dublin, 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. | |
| 🗓 | | 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! | |
| 🗓 | | 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. | |
| 🗓 | | 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! | |
| 🗓 | | 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. | |
| 🗓 | | Augsburger Linux-Infotag 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | PyCon US 2025 |
| David L. Lawrence Convention Center, Pittsburgh, PA, US | PyCon US attracts a unique audience of Python users and community members, from beginners just learning the language to the leading developers in the field to community organizers to the contributors who guide the development of the language itself. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | DevConf.CZ *NO FEE* |
| Brno University of Technology, 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. | |
| 🗓 | | 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 Malaga since 2016. | |
| 🗓 | | 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 information, solve problems, and gain knowledge, furthering open source innovation and ensuring a sustainable open source ecosystem. | |
| 🗓 | | Swiss PGDay 2025 |
| Eastern Switzerland University of Applied Sciences (OST), Rapperswil, 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. | |
| 🗓 | | Linux Security Summit North America |
| Convention Center, Denver, CO, US | A technical forum for collaboration between Linux developers, researchers, and end users aiming to foster community efforts in analyzing and solving Linux security challenges. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | DebCamp25 |
| 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. | |
| 🗓 | | DebConf25 |
| 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. | |
| 🗓 | | 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! | |
| 🗓 | | International TeX Users Group - TUG 2025: 46th annual meeting |
| Hyatt Regency, Thiruvananthapuram, Kerala, IN | Presentations covering the TeX world. | |
| 🗓 | | GNOME Users And Developers European - GUADEC 2025 |
| 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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! | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | Open Source Summit Europe |
| 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | 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. | |
| 🗓 | | EuroBSDCon 2025 |
| 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. | |
| 🗓 | | 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. | |
| 🗓 | | PyCon Estonia 2025 |
| Tallinn, EE | PyCon Estonia is a conference dedicated to the Python programming language. | |
| 🗓 | | LibrePlanet 2025: Forty years of software freedom |
| Boston, MA, US | The mission of LibrePlanet is to empower a global network of both local and project-based teams, all working together to advance free software as a social movement for user freedom. | |
| 🗓 | | LinuxDays 2025 *NO FEE* |
| FIT, České Vysoké Učení Technické, Dejvicích, Prague, CZ | The LinuxDays 2025 conference means dozens of lectures and workshops, a host of interesting personalities, a place to meet, lots of new ideas and information, and stands from a number of different projects: Fedora, openSUSE, vpsFree.cz, Mozilla, brmlab, OpenAlt and many others. Admission is free. | |
| 🗓 | | DrupalCon Vienna 2025 |
| Austria Center, Vienna, AT | DrupalCon Vienna 2025 is your chance to connect with the global Drupal community, showcase your knowledge, and inspire others. Don't miss the opportunity to speak at Europe's biggest Drupal event of the year! | |
| 🗓 | | Python Brasil 2025 |
| Centro de Eventos São Luís, São Paulo, BR | Made by the community for the community, it aims to spread the language, disseminate knowledge, promote the exchange of experiences and keep the community growing equally in public and social impact. | |
| 🗓 | | MozFest 2025 |
| Poble Espanyol, Barcelona, ES | For 15 years, Mozilla Festival has been the home for big ideas, bold conversations, and the movement for a better internet. | |
| 🗓 | | OpenForum Academy Symposium 2025 |
| Rio de Janeiro, BR | The OpenForum Academy (OFA) Symposium is the only academic conference covering questions relating to the social, political and economic impact of Open Source and Open Technologies. | |
| 🗓 | | Linux Kernel Maintainer Summit *NO FEE* |
| Toranomon Hills Forum 虎ノ門ヒルズフォーラム, Tokyo 東京, JP | An annual, by-invitation gathering of the world’s leading core kernel developers to discuss the state of the existing kernel and plan the next development cycle. | |
| 🗓 | | Linux Plumbers Conference - LPC 2025 |
| Toranomon Hills Forum 虎ノ門ヒルズフォーラム, Tokyo 東京, JP | The Linux Plumbers Conference is the premier event for developers working at all levels of the plumbing layer and beyond. | |
| 🗓 | | Chaos Communication Congress 39C3 |
| Congress Center, Hamburg, DE | Starting in 1984, Congress has been organized by the Chaos Computer Club (CCC) with help of the community & appreciates all kinds of participation. You are encouraged to contribute by volunteering, setting up & hosting hands-on & self-organized events with the other components of your assembly or presenting your own projects to fellow hackers. | |