Listing Hackathons

Social Media Hackathon — Stuttgart One day. 60 builders. Ship something the social web hasn't seen yet. Spend a Saturday in July building the next generation of social media tools — from AI-powered content engines to community platforms that don't exist yet. Form a team in the morning, ship a working demo by the evening. 📋 At a glance What: One-day social media hackathon

Join the world’s first Custom GPTs Hackathon to create your own AI tools! Innovate with GPTs: Explore the possibilities of creating custom versions of ChatGPT for specific tasks or purposes. No Coding Required: Anyone can build their own GPT; coding skills are not necessary. Hands-on Experience: The primary benefit of this Hackathon is the opportunity to gain practical, hands-on experience with OpenAI's GPT technology. Educational Focus: Use this event as an educational journey to understand the capabilities and applications of GPTs.

🚀 Revolutionize Government Efficiency with xAI & Grok: Embrace the Future of Public Service. ⚡ Build intelligent tools to streamline government processes, cut costs, and drive impactful change. 🤖 Harness the power of Grok, xAI’s advanced AI model, to automate tasks and empower citizens. 🌐 Collaborate with innovative developers and create solutions that reshape public administration. 📅 Register now and be part of the movement for a leaner, smarter government!

Build blockchain-native tools for biotech's future, inside the world’s most flexible jurisdiction.

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.

$20

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on March 6-8, 2026, in Rzeszów, Poland. We’re excited to co-organize this hackathon with the Polish Development Fund (PFR) and Rzeszów City to support the creation of innovative technology in Poland, under the patronage of the Minister of National Defence of Poland. PFR offers instruments to support the development of enterprises, local government units, and private individuals, thereby investing in the country's sustainable social development and economic growth. One of PFR's projects is the IDA program, which supports innovative entities in developing dual-use technologies. Goal

The second edition of the ETH Belgrade hackathon takes place in Belgrade from May 31st to June 2nd, 2024.

The third edition of the ETH Belgrade hackathon takes place in Belgrade from June 3-5, 2025.

First ever Ethereum hackathon in Central Asia

ETH Cinco de Mayo Hackathon 2nd Edition

ETH Latam Hackathon Brasil, Sao Paulo, 06-07/November

ETHAccra is an in person 3-day hackathon happening in Accra. “Come for the Hack - Stay for the Vibes”

Welcome to our 2nd Edition of ETHDam, strap in for a 3 day IRL hackathon, dedicated to Privacy and Security, hosted in Amsterdam, the Netherlands.

Welcome to our 3rd Edition of ETHDam! 48h IRL hackathon, dedicated to Privacy, Security & AI 😎

Munich’s Biggest Ethereum Hackathon Empowering innovation, collaboration, and blockchain solutions at the forefront of technical excellence EVM and EVM-compatible apps. https://ethmunich.de/

The Hackathon for builders by builders. Rome, 17-19 October, Privacy, AI and DeFi tracks.

ETHSamba Hack, Rio de Janeiro, 22/03 - 24/03

Push the boundaries of privacy, security, and censorship resistance with cutting-edge technologies.

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

⌚ Take on a 48-hour challenge packed with creativity. 🚀 Build an app powered by Llama 3.2’s capabilities. 🎓 Get advice and support from industry experts along every step of the way. 🏆 Win an opportunity to participate in the Lablab NEXT acceleration program 💰 Stand a chance to win $5,000 in prizes. 🌟 Win the opportunity to be invited, with transport and accommodation covered, to our upcoming Giga Hackathons in Barcelona or Geneva in partnership with UNICEF. 🧑🏻‍💻 Sign up before the Kick-Off Stream to lock in your spot!

👅 Generate realistic, captivating speech in a wide range of languages 🗓️ Join an exciting 3-day online hackathon from July 28 - 31 💡 Get full mentors support at lablab.ai platform 👥 Form Solo or Build Your Team 🐱‍💻 Registration ends on July 28th morning, so don't miss out! Sign up Now!

🕒 Challenge submission deadline is October 11th 🚀 Develop groundbreaking AI audio solutions using ElevenLabs technology. 💰 $6,666 prize pool for the winners. 📅 Finalists present at the ML in PL conference in Warsaw on November 7th 🎁 Get a promo code worth $15 of AI/ML API credits

¡Únete al hackatón Ethereum Bolivia 2024! 🚀🌐 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!

¡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!

El hackathon más esperado por la comunidad argentina, esta vez en el marco de Devconnect.

Time to Protect Europe’s Information Environment 🤖 Join us and 100+ hackers from all across Europe and beyond for the first European AI Intelligence Hackathon on June 5-7, 2026, in Belgrade, Serbia. Europe’s information environment is under constant pressure. Bringing this hackathon to Belgrade together with Reputeo means engaging closely with both the challenge and the capability: A city where information flows collide, yet with one of the strongest pools of technical talent in Europe—making it the right place to build systems that cut through noise and strengthen a more resilient, fact-based information space.

Build Europe's Tech Sovereignty Join 200 engineers, designers, and researchers in Gdańsk to prototype solutions that strengthen Europe's technological independence and critical infrastructure.

Time to Accelerate European Defense Innovation ​The mission continues: at the same time as the Munich Security Conference, we'll be organizing once again Europe's largest defense tech hackathon: ​​Join us and 200+ hackers from all across Europe and beyond for the third edition of the European Defense Tech Hackathon on February 13-16, 2025, in Munich.   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. ​​Our goal with the hackathon is to put you in a position to continue towards deployment.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on November 13-15, 2026, in Amsterdam, Netherlands. Wanna come as a visitor? Join our EDTH Community here: https://community.eurodefense.tech/ 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.