49+ React Web3 Hackathon Projects

Game built on TON integrated with Telegram built using react and ton smart contracts

Let one person trade, but many people contribute and withdraw any time they want

connect via ens by bumping phones with verifiable irl connections

Browser Extension for portable IP experimentation and interactions

AutoSplit is an expense-sharing dApp that revolutionizes debt management. Define personalized debt thresholds, and watch as automated reimbursement requests with secure payment links are effortlessly dispatched—all powered by the gas-free Skale Network.

The ETH Movie Database is a decentralized app built with React and Ethereum. It allows users to vote on movies transparently via MetaMask, recording votes on-chain for a secure, tamper-proof ranking system. A showcase of blockchain's potential in entertainment

We're building a rewards system for businesses, where customers earn points on every purchase. These points can be redeemed for gifts, driving customer loyalty and repeat visits.

Museums collection management tool with blockchain-based storage

Improve your fitness goals while also exposing yourself to immense monetary gain.

Smart Ethereum Wallet is a secure, user-friendly wallet tracker that monitors your Ethereum wallet activities, sends notifications for incoming/outgoing transactions, and provides a summary of balance changes over time—all in one streamlined dashboard.

We built the first DEX on Essential Blockchain, powered by a declarative framework. Users can seamlessly add/remove liquidity, swap tokens, and earn LP tokens. Plus, we open-sourced a JS framework to make Essential development accessible to all developers.

We built a React app that connects to user authentication via Alchemy’s Accounts UI Widget. We're creating a composite Ethereum token of two crypto carbon credits on Celo using Toucan Protocol. A subgraph listens to wallet events and broadcasts via XMTP to a Telegram bot.