71+ React PRIVACY Web3 Hackathon Projects

peer-to-peer decentralized marketplace where you can buy and sell items

A zero-knowledge proof for verifying estimated time of arrival (ETA) claims without revealing location data

Kaching 2.0 is a decentralized tool that helps you keep track of your crypto transactions. It’s built for privacy and transparency, giving you control over your financial data while making it easy to organize and review your activity in the Web3 world.

FundNForget is a Web3 DeFi app for effortless crypto investing with professional fund managers. Users connect wallets, choose investment amounts, and automation handles the rest. Fund managers publish strategies, and the app automatically implements them.

NFT gaming platform: players contribute ETH to compete for NFTs, climbing contribution-based bands to boost winning chances. Creators benefit from increased exposure and potential profits. Fair, transparent, and engaging—transforming NFT sales into thrilling experiences!

An onchain version of the popular word game Wordle that keeps group scores fair, private, and hint-free. Now, groups can share their daily Wordle scores without unintentionally giving hints – scores are encrypted and visible only to invited players.

SCROWL is a decentralized Web3 marketplace for gamers to securely buy, sell, and top-up in-game assets using smart contracts, an escrow system, Dynamic authentication, and Push Protocol for real-time messaging, all on Scroll's scalable Layer 2 network.

A multichain meme coin launchpad enabling secure ERC-20 creation and fostering social engagement.

PingTo.me bridges digital and physical worlds by turning your online presence into a smart NFC card. Share all your social links, portfolio, and contact info with one tap. Your complete digital identity, elegantly unified and ready to share anywhere. 🌐✨

AI wearable device that always listens and stores the proof of important conversation on-chain. Accompanied by a mobile app that helps to manage and visualize interactions.

A Telegram mini-app for Blackjack, with on chain game play and encrypted data.

Rollin'pool is a user-friendly Telegram mini app that connects individual drivers and passengers to share costs, reduce emissions, and enhance social interactions, all while using ZK to ensure secure and private rides.