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 12878 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 4958 participants
Twitch Streamer Tools Hackathon Online Build applications for streamers to collaborate with each other, their community, and enhance the stream. $50,000 in prizes Winners announced 894 participants
Square + Google AI Hackathon Online Build or update an app for Square sellers that uses both Square APIs and Google AI APIs. $100,000 in prizes Winners announced 2438 participants
TRON Grand Hackathon 2022 Online Accelerate the Future $1,000,000 in prizes Winners announced 1779 participants