AI for Accessibility
An open-source toolkit that uses machine learning to auto-generate alt text for visually impaired users.
Learn more →125 teams | 7 time zones | 48 hours = 87 innovative open-source projects built for a better future.
The 2025 ellao Global Hackathon brought together developers, designers, and problem-solvers from 157 countries to build open-source solutions for real-world challenges.
A journey of innovation, collaboration, and groundbreaking results
From midnight ideation to final demos, participants tackled challenges in sustainable AI, open hardware, and community-driven tools.
View Awards →Led by experts from Mozilla, Apache Software Foundation, and Red Hat, with a focus on open governance and real-world impact.
Meet the Jury →2025's winning entries that will shape the future of open innovation
An open-source toolkit that uses machine learning to auto-generate alt text for visually impaired users.
Learn more →Low-cost agricultural sensors and data platform for small-scale subsistence farmers in 15+ countries.
View Deployment →Federated health data sharing system adopted by 23 open-source medical orgs in the ellao network.
Project page →Special recognition to contributors who made outstanding impacts
Led by team from Brazil and Germany, this health data collaboration system will be integrated in ellao's global medical initiatives.
Vision-friendly toolkit adopted by 8 open-source educational platforms to enhance digital inclusion.
Open-source renewable energy monitoring solution now deployed in 7 clean-tech startup incubators.
Apply now for our 2026 event - we're expanding to 100 cities with a focus on AI ethics and quantum computing.