Looking for react Web3 blockchain project ideas? Our library of 71+ Web3 hackathon projects offers real-world implementations, code samples, and detailed case studies.
SecureChain is a decentralized platform enhancing Web3 security with identity verification, smart contract auditing, and multi-factor authentication (MFA). Users get a security score and can safely interact with verified smart contracts, ensuring a safer blockchain experience.
SafeWire is a payment dispute infrastructure project. It aims to revolutionize the way online transactions are conducted by providing a secure, fair, and decentralized payment system with built-in dispute resolution mechanisms.
Influencer-Inspired Decentralised Travel - A web3 platform where users log in with Reown's AppKit, upload reels to decentralized Pinata, and mint NFTs on the Hedera chain. These NFTs offer travel discounts while users' bucket lists remain private, shared with travel agencies.
Equal rights voting mechanism for DAO based on constant emission rate token
An automated arbitrage bot that operates across multiple EVM-compatible chains, with a user-friendly interface for setup, monitoring, and profit distribution.
cross chain lend/borrow by fixed rate and term bring arbitrage, looping, aggregating and much more opportunity, and as long as much asset pick fixed rate and term, the market would growth much faster than it used to.
A decentralized marketplace for digital services using blockchain and AI verification. Clients post tasks with bounties in smart contracts. Workers submit work; AI approves quality. If approved, funds release. No intermediaries—secure and efficient.
Grand Nouns Auto is a gangster-themed game blending action gameplay with DeFi education. Players complete missions involving real DeFi tasks, tracked by AI NPCs. Success yields attestations on the Gnosis Chain, featuring characters from the Nouns DAO and the NFT ecosystem.
A decentralized stablecoin application utilizing Worldcoin for identity verification and Flow blockchain for verifiable random number generation, allowing users to securely deposit USDC, invest in DeFi opportunities, and receive fair and transparent rewards.
A privacy-preserving Chrome extension that lets users monetize their browsing data. Using World ID for authentication and Oasis Sapphire for secure data handling, it creates a fair marketplace where users earn from their data while buyers access quality information.
Decentralized Marketplace Verification for Instagram Sellers
zkNoidBlackjack is a trustless, provably fair Blackjack game using Mina Protocol's zkNoid platform. Play anonymously with on-chain proof that cards are dealt fairly!