Shower Hacks San Francisco, California, USA The winner gets to take a shower $9,550 in prizes Sep 26, 2026 123 participants
UC Berkeley AI Hackathon 2026 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by the team behind Cal Hacks! $96,700 in prizes Jun 20 – 21, 2026 1082 participants
Cal Hacks 12.0 San Francisco, CA, USA This year's Cal Hacks is co-hosted by Claude, Fetch AI, AppLovin, and Amazon's Annapurna Labs! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $58,100 in prizes Oct 24 – 26, 2025 2156 participants
UC Berkeley AI Hackathon 2025 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by Cal Hacks! $41,564 in prizes Jun 21 – 22, 2025 1035 participants
FullyHacks 2025 Fullerton, CA, USA CSUF's premier 24-hour hackathon, uniting 300+ students to build impactful projects, network with industry pros, and compete for prizes. Non-monetary prizes Apr 12 – 13, 2025 192 participants
DiamondHacks 2025 San Diego, CA, USA San Diego's Fastest Growing Hackathon $2,853 in prizes Apr 5 – 6, 2025 302 participants
BeachHacks 8.0 Long Beach, CA, USA CSULB ACM's annual hackathon! $3,990 in prizes Mar 22 – 23, 2025 142 participants
brainrot jia.seed hackathon ($5,772) in prizes Online make a project and i will see if it is epic or not $5,697 in prizes Winners announced 1188 participants
Cerebral Beach Hacks – LA Tech Week 2024 Kickoff Hackathon Santa Monica, CA, USA The LA Tech Week 2024 Kickoff Hackathon. Steps from a16z and Santa Monica Beach. $170,580 in prizes Oct 12 – 13, 2024 303 participants
2024 TikTok TechJam Online Unleash creativity and break boundaries $67,500 in prizes Winners announced 4423 participants
LA Hacks 2024 Los Angeles, CA, USA Welcome to the Grand Adventure of LA Hacks 2024 $47,216 in prizes Apr 19 – 21, 2024 704 participants