Kiroween 2026 Online Build something wicked and git commit to the darkness. $100,000 in prizes Dec 04, 2026 05:00 PM EST to submit 10244 participants
CUTC: Transform Hackathon Online Spend a week building ambitious ideas, meeting future co-founders, learning from industry leaders, and joining one of Canada's fastest-growing student builder communities. Non-monetary prizes Winners announced 254 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46660 participants