Javascript PRIVACY Projects: 292+ Open-Source Examples

Browse 292+ open-source Javascript PRIVACY projects from ETHGlobal hackathons. Find production-ready code, learn from winning implementations, and discover inspiration for your next blockchain build.

Explore JavaScript privacy tools from blockchain hackathons. Find client-side encryption, anonymous browsing helpers, and privacy-preserving data handling.

Defi Duels

Crypto battle cards with Pyth Entropy randomness and real-time price-boosted stats ⚔️🃏

SolidityJavaScriptinfrastructuregamingprivacy

ETHGlobal New Delhi • 2025

QbitsWallet

Quantum-safe Ethereum wallet with ECDSA+Dilithium hybrid sigs & zkSNARK proofs on zkSync Era

ReactTypeScriptJavaScriptNext.jsinfrastructureprivacy

ETHGlobal New Delhi • 2025

0xPay SDK

Turns any API into paid service with crypto payments. ZK-secured, automated settlements.

SolidityTypeScriptJavaScriptRustdefiinfrastructureprivacy

ETHGlobal New Delhi • 2025

WalShare

WalShare: secure document sharing via Walrus decentralized storage with encrypted auto-expiry links.

JavaScriptRustNode.jsnftinfrastructureprivacy

ETHGlobal New Delhi • 2025

Journo

Peer-to-peer travel & ridesharing with World ID for trusted, authentic connections.

ReactJavaScriptRustNext.jsNode.jsnftinfrastructuregamingsocialprivacy

ETHGlobal New Delhi • 2025

OmniPriv

Prove you're verified on any blockchain without revealing your personal data using ZK proofs.

SolidityJavaScriptinfrastructureprivacy

ETHGlobal Buenos Aires • 2025

Polycourt - AI judge

Trustless AI dispute resolution. Cryptographically verifiable for a sovereign internet.

JavaScriptPythondaoinfrastructureprivacy

ETHGlobal Buenos Aires • 2025

eepy cat

Proof of sleep incentive mechanism to promote and reward positive sleeping habits

SolidityReactTypeScriptJavaScriptNext.jsNode.jsnftprivacy

🏆 Best use of MultiBaas (Curvegrid)

ETHGlobal Buenos Aires • 2025

HyperAgent

Onboarding the first 1 billion AI Agents: The ERC-8004 compliant smart contract protocol

SolidityTypeScriptJavaScriptNode.jsnftinfrastructureprivacy

🏆 Best Use of Hedera Agent Kit & Google A2A1st place (Hedera)

ETHGlobal Buenos Aires • 2025

Meridian Foundation

Compliant DeFi access for banks through a secure, yield-earning flatcoin system.”

SolidityReactTypeScriptJavaScriptRustNext.jsdefinftinfrastructuresocialprivacy

ETHGlobal Buenos Aires • 2025

MeetPoint

Privacy-preserving calendar matching app -allows users to identify mutual events in a private manner

ReactTypeScriptJavaScriptNext.jsinfrastructuregamingsocialprivacy

ETHGlobal Buenos Aires • 2025

ZooKies

Privacy-preserving ads powered by ZK proofs: users get paid, not tracked.

JavaScriptinfrastructuresocialprivacy

ETHGlobal Cannes • 2025

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