We will be undergoing planned maintenance on Oct 7th 6:00AM UTC / Oct 7th 2:00AM ET

Steven Luo (sfluo)

picking lava lamps

UC Berkeley AI Hackathon 2025

Berkeley, CA, USA

Come join us at the world's largest AI Hackathon hosted by Cal Hacks!

Stanford, CA, USA

The largest collegiate hackathon in the U.S.

Stanford, CA, USA

Stanford University's Premier Hackathon - Join us to build apps, machines, and communities on Stanford Campus.

San Francisco, CA, USA

Are you ready for the world's largest collegiate hackathon? Come and build at Cal Hacks 9.0!