Arbiter Hacks V1 Online Open innovation for all, submit projects that have potential impact and usability! $7,800 in prizes Dec 21, 2026 12:00 AM EST to submit 901 participants
Nebius x NVIDIA Global AI Hackathon Online Build the next frontier of AI on open infrastructure $50,000 in prizes Winners TBD 29874 participants
EurekaDev 2026 Online A 5-week global innovation challenge blending science fairs and hackathons. Research or code your way to innovation across multiple STEM tracks! Code, research and win prizes! $19,122 in prizes Winners TBD 581 participants
MLH Hacktoberfest Hack Day Teens Delhi X ElevenLabs New Delhi, India Where Young Coders Build the Future. Non-monetary prizes Oct 17, 2026 169 participants
Next Founders Hackathon Online Build. Pitch. Win Cash. $275 in prizes Winners announced 890 participants
WarriorHacks 2.0 Online Open to all skill levels! Build an app, website, game, or pitch an idea that fits the theme revealed before the submission phase opens. Non-monetary prizes Winners announced 2419 participants
Banana Hacks Online Build apps, games, and tools that solve real problems in a weekend around Image AI. $500 in prizes Winners announced 598 participants
RevenueCat Shipaton 2026 Online Ship apps and start making money. $740,000 in prizes Winners announced 28561 participants