Moonshot Hackathon Online Moonshots Only - Zero to one Ideas Non-monetary prizes Winners announced 645 participants
AI Partner Catalyst: Accelerate Innovation Online Accelerating innovation through the Google Cloud partner ecosystem $75,000 in prizes Winners announced 6924 participants
Reddit and Kiro: Community Games Challenge Online Reddit and Kiro are hosting a virtual hackathon for the best community game! $45,000 in prizes Winners announced 1925 participants
Hacktivism II Online Driving innovation, creating solutions: coding for a brighter future $55,457 in prizes Winners announced 866 participants
GNEC Hackathon 2025 Fall - Compete For UN-Affiliated/NGO Internships & Prizes Online Create projects benefiting UNSDGs for a chance to work along UN affiliated NGOs! $700 in prizes Winners announced 912 participants
Health in Climate NYC Hackathon 2025 New York, NY, USA Where climate resilience meets health innovation. $5,000 in prizes Sep 20 – 21, 2025 66 participants
Fun and Games with Devvit Web Online Create a new game or experience for the Reddit community! $49,000 in prizes Winners announced 2603 participants
Zero Boundaries Hackathon Online Innovation without limits, impact without borders. $65,280 in prizes Winners announced 206 participants
Hack the System Online Code solutions to transform our economy and strengthen democracy $100 in prizes Winners announced 443 participants
OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8639 participants
NovaSpark Pitch Competition Online We’re giving high school innovators the tools, mentorship, and stage to launch their boldest startup ideas. Submit your pitch. Get feedback from real founders. Build what matters. $1,500 in prizes Winners announced 155 participants
TechLit Bridging The Gap 2025 Hackathon Online Join us for a weekend of innovation, collaboration, and empowerment at the Bridging the Gap Hackathon! Let's work together to create a brighter, more inclusive future for all. $2,915 in prizes Winners announced 117 participants
Bay2BayHacks 2025 Online Develop an AI-based app that contributes to societal betterment. $57,524 in prizes Winners announced 543 participants
