Looking for react Web3 blockchain project ideas? Our library of 151+ Web3 hackathon projects offers real-world implementations, code samples, and detailed case studies.
SubStream: A decentralized subscription platform on Base enabling merchants to create web3 subscriptions with AI-powered auto-renewals, bringing subscription models to web3 seamlessly.
Clara is an event ticketing platform powered by an on-chain reputation system. Users build their reputation through actions, which can be used for exclusive event access, loans, CAPTCHA replacement, and more.
The ultimate goal of the project was to create a system that would simplify the process of repaying small debts or amounts in a very straightforward and humorous way using cryptocurrencies.
Underdog is a decentralized, permissionless sports prediction marketplace on the Chiliz Blockchain, featuring AI-driven verification, automated rewards, AMM-based order books, oracle-validated outcomes, and low-cost transactions for sports enthusiasts.
ChainSmash is a Web3-native card game where players battle using blockchain
Introducing Vibez: A Web3 community builder that uses Scroll's L1SLOAD to verify L1 NFT ownership (BAYC/Punks) directly on L2. Pass the vibe check by proving you're a long-term holder, not a wash trader. Build better communities through trustworthy reputation gating! 🎨✨
HaveFund(d) is a global crowdfunding platform that bridges fiat and crypto, enabling secure, low-cost, and transparent fundraising. It empowers creators and contributors with seamless funding and real-time tracking.
Our on-chain pixel art project encodes RGB values and coordinates into transfers of native ETH, reuses funds for public goods, and minimizes gas expenditure. Turn creativity into impact—every pixel you color contributes directly to a public good!
GrooveGraph grabs your Spotify data and imprints your music identity onchain. Users can explore others' profiles and connect with people with similar taste, as well as explore new music.
EZ-Pass revolutionizes ticketing with blockchain, creating secure NFT tickets using #Ethereum, #Nillion, #Celo, #Hyperbollic, #WorldChain, and MiniApp.
Privacy-focused dApp which allows anybody to earn USD by contributing confidential health data to research studies, without compromising their privacy
Transacting with blockchain is complex, but we make it simple. IntentFlow provides a declarative way for all your transaction.