GenHacks Online Welcome to GenHacks! The greatest virtual hackathon you have ever seen. Once in a generation. $CAD 1,050 in prizes Dec 26, 2026 12:00 AM EST to submit 373 participants
Codegeist 2026: Build with context. Ship with confidence. Online Build on Forge, extend Atlassian products, and turn connected context into powerful new apps for teams — win your share of $120K. $120,000 in prizes Dec 22, 2026 03:00 PM EST to submit 3385 participants
Arbiter Hacks V1 Online Open innovation for all, submit projects that have potential impact and usability! $7,800 in prizes Dec 21, 2026 12:00 AM EST to submit 1129 participants
AI OpenBuild Online Build anything with AI. Turn models, data, and bold ideas into working experiences. $150 in prizes Dec 10, 2026 11:45 PM EST to submit 132 participants
SLAY HACKS Online Build bold. Code creatively. Slay real-world challenges. A hackathon for curious beginners and passionate builders to turn fresh ideas into working projects. $4,500 in prizes Dec 07, 2026 05:00 PM EST to submit 227 participants
Deck the Pixels Online A holiday design challenge with Nano Banana in Adobe Photoshop $25,000 in prizes Dec 07, 2026 04:00 PM EST to submit 594 participants
Kiroween 2026 Featured Online Build something wicked and git commit to the darkness. $100,000 in prizes Dec 04, 2026 05:00 PM EST to submit 13829 participants
#BuildHybridAI 2026 Online Build AI apps that run on-device and in the cloud with Firebase AI Logic. $30,000 in prizes Nov 30, 2026 05:00 PM EST to submit 2170 participants