OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46672 participants
Kiroween Online Build something wicked for Kiroween, our annual Halloween-themed hackathon where developers dare to code in dark mode $100,000 in prizes Winners announced 4967 participants
World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 129563 participants
Hack for Humanity | 2025 Online Create software for social good $105,295 in prizes Winners announced 1024 participants
Biomimicry Build-a-thon Online Designing the Future, Inspired by Nature $1,800 in prizes Winners announced 209 participants
RevenueCat Ship-a-ton Online Ship apps and start making money. $25,500 in prizes Winners announced 1664 participants
Microsoft Developers AI Learning Hackathon Online Learn to build your AI apps with Azure Cosmos DB $10,000 in prizes Winners announced 9483 participants
Data Hackfest Online With the ever-growing landscape of data points, from structured to unstructured, we invite you to use it to build your favorite hacks! Non-monetary prizes Winners announced 165 participants
