Build, Ship, Shape: Amazon Developer Hackathon Online Build across Amazon Devices and shape what's next. $138,000 in prizes Winners TBD 35467 participants
HopHacks Fall 2026 Baltimore, MD, USA HopHacks is a 36-hour annual Hackathon held at JHU that encourages engineers, designers, and entrepreneurs to explore new ideas and create new applications. Non-monetary prizes Sep 18 – 20, 2026 281 participants