Listing Hackathons

First ever Ethereum hackathon in Central Asia

Europe’s first-ever Space Cybersecurity Hackathon, uniting top space institutions, cybersecurity and telecom experts, satellite engineers, ethical hackers, and trailblazing startups to tackle the toughest challenges in satellite security — and build practical software solutions within 24 hours — to protect Europe’s satellites, GPS, and telecom networks from cyberattacks, fortifying defenses in space and on Earth. When: October 17-18, 2025 Where: Madrid Digitaliza (calle Embajadores, 181, Madrid, Spain) For whom: Satellite engineers looking to apply their technical expertise to real-world cybersecurity threats.

Europe’s first-ever Space Cybersecurity Hackathon, uniting top space institutions, cybersecurity and telecom experts, satellite engineers, ethical hackers, and trailblazing startups to tackle the toughest challenges in satellite security — and build practical software solutions within 24 hours — to protect Europe’s satellites, GPS, and telecom networks from cyberattacks, fortifying defenses in space and on Earth.

Time to Accelerate European Defense Innovation! Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon in Hamburg in mid-October 2025! Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

EUR 13,000 of cash prizes, mentorship from Huawei in Ireland, a trip to China, internship opportunities and many more! Server Fleet Management At Scale

Team up with experts from DiGOS and TU Berlin at the Alfred-Wegener Institute to develop /fresh ideas and open source code using real laser ranging data from ESA's Izaña station on Teneriffe. Optimize your algorithms and verify your predictions, contributing to a safer and more sustainable space environment. 🔷 use real data from the Izaña-1 Laserstation in Teneriffe to determine orbit information of objects in space 🔷 in a team of up to four people determine together the orbit of real satellites 🛰️ 🔷 optimize your algorithms and detect unknown space debris! 🔷 get to know new people who want to keep our earth and its surroundings as clean as you! ✨

Time to Accelerate European Defense Innovation Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on October 3-5, 2025, in Milan, Italy. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Solve challenges in cybersecurity and unmanned systems. Get mentored by defence professionals.

The NASA International Space Apps Challenge is a hackathon for coders, scientists, designers, storytellers, makers, builders, technologists, and innovators around the world to come together and use open data from NASA and its Space Agency Partners to create solutions to challenges we face on Earth and in space.

Time to Accelerate Defense Innovation in Europe! Join us and 200+ hackers from across Europe and beyond for the European Defense Tech Hackathon, taking place on September 25–28, 2025, in London, UK—right before the Resilience Conference and as part of London Defence Tech Week. Connect with fellow defense innovators, meet potential co-founders, and build projects with real-world impact that could save lives. We’ll bring challenges rooted in pressing defense and security problems, and you’re welcome to bring your own ideas. Throughout the event, you’ll get hands-on guidance from seasoned mentors—and after the hackathon, we’ll help you take your project closer to real-world deployment 🚀

We will share updates on the event schedule, challenges etc. by the 04.09. so stay posted and apply for the event <3 You can apply as teams (up to 5) or as individuals.

Defense Hack Day is an intense one-day event where builders, engineers, and problem-solvers take on real-world security and defense challenges—from counter-drone systems to demining technologies. Think of it as a mini-hackathon: a focused briefing in the morning, a full day of hacking, and a high-energy pitch competition to close it out.

Join the Internet of Agents Hackathon to build real-world, rentable agents using Coral Protocol and Solana-powered payments. 📅 September 14–21, 2025 Sept 14–21: Build online with global innovators. Submit projects by the deadline. Sept 20 (NYC): On-site build day at Solana Skyline (invitation only). Sept 21 (NYC): Live pitches, networking, and winner announcements. 🧠 Mentorship from experts and Coral specialists throughout. 🤝 Participate solo or in teams. 📍 Travel and accommodation not covered. 🚀 Sign up now to secure your spot before the Kick-Off Stream!

EUR 27,000 of cash prizes, mentorship from Huawei in Munich, internship opportunities, a trip to China and many more! Media Technology

Join us at MuniHac, Munich's yearly Haskell gathering! For three days, Haskell folks from all over meet up to code, learn, and hang out. New to Haskell or been at it for years? Doesn't matter - we've got workshops, talks, and projects for everyone. It's a great chance to learn and meet the enthusiastic Haskell community!

HackMIT 2025 is a 24-hour hackathon at MIT in Cambridge, Massachusetts.

Join us for the next edition of ETHWarsaw - where builders meet to create the future of Ethereum.

GBP28,000 of cash prizes, mentorship from Huawei in the UK, a trip to China, internship opportunities and many more! Embark on an exciting journey in the realms of Computer Architecture and Fundamental Software.

EUR 18,000 of cash prizes, mentorship from Huawei in Ireland, a trip to China, internship opportunities and many more! Media Technology

Signal Intelligence. Combat First Aid. Maritime Dominance. Join us and 100+ hackers from across Europe and beyond for the European Defense Tech Hackathon on Aug 29-31, 2025, in Copenhagen, Denmark. Connect with fellow defense innovators, meet potential co-founders, and work on projects that have the potential to save lives! We'll prepare challenges based on real-world problems, and you can bring your own project. You'll get feedback from experienced mentors, and we'll put you in a position to deploy your project in the real world after the hackathon 🚀 More information on our event website: https://eurodefense.tech/hackathons/copenhagen-2025/

A short hackathon and meetup for Cursor community in Germany. More info coming soon!

🕒 6 days to explore the full potential of GPT-5 💡 Build next-gen AI apps 🤝 Compete solo or form a dream team 🚀 Connect with global innovators 🧑🏻‍💻 Sign up before the Kick-Off Stream to secure your spot!

Europe's most spontaneous hackathon

¡Únete al hackatón Ethereum Bolivia 2025! 🚀🌐 Desarrolladores, emprendedores y entusiastas del blockchain se reunirán para innovar y colaborar en proyectos revolucionarios. ¡No te pierdas esta oportunidad única de aprender y competir por grandes premios!

Time to Accelerate European Defense Innovation Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on July…

Ready to build cutting-edge AI? Join us for the next edition of our full-weekend hackathon in Berlin, where the brightest minds in tech come together to build & have a great weekend.

Southern Italy’s First Web3 Hackathon. By hackers for hackers. Join us in Naples, July 15–17.

This is your chance to push boundaries, solve real-world challenges, and create impact at the official hackathon of the RAISE Summit 2025 at one of Paris's most iconic venues: Le Carrousel du Louvre. 📅 July 4–8, 2025 — Collaborate online with a global community of innovators. 🏛️ July 8–9, 2025 — Limited on-site access to the RAISE Summit in Paris (300 participants), exclusively for selected teams. 🏆 July 9, 2025 — Winners will be announced live on stage during the RAISE Summit. 🌟 Expert mentors will guide you throughout your hackathon journey. 🤝 Work solo or build your dream team to create something extraordinary. 💰 Compete for a share of up to $150,000 in prizes. 🔒 Sign up before the Kick-Off Stream to secure your spot!

Win €10k in cash, building the future of AI Search Analytics. ​{Tech: Europe} is teaming up with Peec AI for a unique Hackathon on how to crack Search Analytics in the AI Age.

Build next-gen tech adopted by Network States that empower digitally-native communities to thrive