OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners TBD 46786 participants
Google Chrome Built-in AI Challenge 2025 Online Innovate with Intelligence: Build the Future of the Web with Gemini Nano and Chrome AI. $70,000 in prizes Winners announced 14057 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 128359 participants
Hack Reddit 2025 Online Create a new game or experience for the Reddit community! $36,000 in prizes Winners announced 1740 participants
Google Cloud x MLB(TM) Hackathon – Building with Gemini Models Online Build the future of baseball using Google Cloud. $98,700 in prizes Winners announced 7553 participants
Tableau DataDev 2023-2024 Hackathon Online Get ready! Get set! HACK and customize Tableau! $14,000 in prizes Winners announced 1365 participants
Building Privacy in Web3 - Powered by Partisia's MPC Online Take on the challenge to create privacy preserving applications through zero knowledge computation $21,000 in prizes Winners announced 940 participants
Sia: Innovate and Integrate 2023 Online Unleash your creativity, transform storage: two tracks, endless possibilities - whether you're a developer or a content creator, let's revolutionize decentralized storage together. $6,500 in prizes Winners announced 537 participants
Web5: Building the Decentralized Web Online Use your creativity to build a decentralized app using Web5.js $30,000 in prizes Winners announced 1629 participants
NEARCON IRL Hackathon Lisboa, Portugal Step Into The Open Web $161,000 in prizes Nov 7 – 9, 2023 732 participants
Codegeist Unleashed Online Can AI fuel the workplace? Find out by building AI apps on Atlassian’s Forge platform. $172,500 in prizes and trips to Amsterdam for the top 3 winners. $172,500 in prizes Winners announced 1687 participants
