Hacktivism II Online Driving innovation, creating solutions: coding for a brighter future $55,457 in prizes Winners announced 868 participants
AI Agent Competition by Open Mobile Hub Mountain View, CA, USA Join us for an AI Agent Competition, with over $15,000 in prizes! $18,500 in prizes Sep 8 – Oct 11, 2025 295 participants
Proof of Concept Online If you could prove any data on the internet - what would you build? $25,000 in prizes Winners announced 1908 participants
Fun and Games with Devvit Web Online Create a new game or experience for the Reddit community! $49,000 in prizes Winners announced 2609 participants
London Music Technology Hackathon Greater London, United Kingdom Create an audio/music hack in 24 hours £1,500 in prizes Sep 1 – 7, 2025 47 participants
BatchHacks Team Water! Each submission = 1 Year of Water Online Open ended hackathon for everyone. For each submission we recieve, we will donate one year of water to those in need. #TeamWater. Organized by the Batch 09 Organization. Non-monetary prizes Winners announced 153 participants
World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128413 participants
Agent Development Kit Hackathon with Google Cloud Online Build multi-agent AI systems with Agent Development Kit and Google Cloud $50,000 in prizes Winners announced 10362 participants
HackSprint '25 Greater London, United Kingdom Create the Website or App You Wish You Had When You First Started Your Hobby £125 in prizes Mar 8, 2025 39 participants
