Flutter Puzzle Hack Online Push your creativity to its limits by reimagining this classic puzzle! $51,046 in prizes Winners announced 5482 participants
COVID HealthHack Online Given COVID-19, there is an urgent need for new tools to address the new problems created by this unprecedented situation. Non-monetary prizes Winners announced 318 participants
Facebook Hackathon: Messaging Online Build messaging solutions that empower business conversations $7,000 in prizes Winners announced 1867 participants
2019 Developer Circles from Facebook Community Challenge Online Build software using React360, Spark AR, or HTML5 Games to give people the power to connect with friends and family, find communities and grow businesses. $167,500 in prizes Winners announced 12035 participants
MLH Local Hack Day (2018) Join your local tech community & 200+ other communities around the world for a global 12-hour hackathon & celebration of learning, building, & sharing! $1,500 in prizes Nov 30 – Dec 2, 2018 1010 participants
