DiamondHacks 2026 San Diego, CA, USA San Diego's Largest Hackathon $25,710 in prizes Apr 4 – 5, 2026 366 participants
HackIllinois 2026 Urbana, IL, USA HackIllinois is the University of Illinois Urbana-Champaign's premier collegiate hackathon. Launch your legacy at HackAstra! $17,920 in prizes Feb 27 – Mar 1, 2026 679 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 2165 participants
2025 HackSC Hackathon Online Lovable x HackSC x a16z LA Tech Week Non-monetary prizes Winners announced 91 participants
RevenueCat Shipaton 2025 Online Ship apps and start making money. $355,000 in prizes Winners announced 51902 participants
JEWEL CITY HACKS 2.0 Glendale, CA, USA Build innovative B2C and B2B solutions in the City of Glendale. Non-monetary prizes Sep 19 – 27, 2025 40 participants
VISION.HACK [1] Los Angeles, CA, USA Bridging the digital divide in South Los Angeles Non-monetary prizes Sep 6, 2025 32 participants
![VISION.HACK [1]](https://d2dmyh35ffsxbl.cloudfront.net/assets/defaults/thumbnail-placeholder-8c916ef4da99a222ce6ece077c71c7e282f071f830747b2abb5718018cbfa699.gif)