Cosmo Hacks

Main DescriptionCosmo Hacks is a free four day online hackathon for high school students ages 13 to 18, taking place from December 18 to December 21, 2026.This year's theme is Small Problem. Real Impact. The goal is to build something that solves one specific problem for one real group of people. Your project can be an app, website, game, tool, experiment, or something completely different.Students can compete alone or in teams of up to four. Beginners are welcome, and participants will have access to workshops, mentors, sponsor resources, and support through Discord throughout the event.Cosmo Hacks has more than $500 in cash prizes and over $150,000 in sponsor benefits, including software credits, API credits, cloud tools, domains, memberships, scholarships, workshops, and other resources.All times are CST.Day 13:00 PMCosmo Hacks officially opens3:00 PMDevpost submissions openAfter 3:00 PMOpen building timeDay 210:00 AMOpening Ceremony12:00 PMMomen Workshop2:00 PMFormaloo Workshop6:00 PMProtoFlow Workshop8:00 PMOpen WorkshopDay 310:30 AMOpen Workshop2:00 PMMentor Support4:00 PMOpen Workshop6:00 PMOpen WorkshopDay 412:00 PMSubmissions close1:00 PMOfficial judging begins4:00 PMClosing Ceremony and winners announcedWorkshops are expected to last around 30 to 45 minutes.