38+ PRIVACY Web3 Hackathon Projects

Looking for blockchain privacy blockchain project ideas? Our library of 38+ Web3 hackathon projects offers real-world implementations, code samples, and detailed case studies.

Showing 38 projects sponsored by Polygon.

DeDe

DeDe is a trustless scaling infrastructure for e-commerce & delivery platforms. Think of us as an L2 for deliveries like Amazon, DHL, FedEx, etc. We provide trustless deliveries while maintaining integrity and security.

Rustinfrastructureprivacy

🏆 Innovation Pool Prize (WalletConnect)🏆 Pool Prize (Arbitrum)🏆 Deploy on Scroll (Scroll)🏆 Pool Prize (Worldcoin)🏆 Build a Consumer Product1st Place (Base)🏆 Best use of Polygon zkEVM (Polygon)🏆 Best Use of Thorin (ENS)🏆 Best Use of Attestations (Ethereum Attestation Service)

ETHGlobal Istanbul • 2024

Sarma+EVM=ZKEVM,PEXC

Sarma: simple primitive to achieve private execution on EVM, even cross-chain.

privacy

🏆 🏊 Filecoin — Pool Prize (IPFS & Filecoin)🏆 Top 5 - Best App Built on Leo (Aleo)🏆 Pool Prize (Chiliz)🏆 Grand Prize (Aleo)🏆 Pool Prize (IPFS & Filecoin)🏆 Deploy your Dapp on Linea (MetaMask)🏆 Pool Prize (Arbitrum)🏆 Deploy on Scroll (Scroll)🏆 Best overall Noir application or library (Aztec)🏆 Cross - chain / LxLy Bridge implementation (Polygon)🏆 Best Neon EVM use case1st Place (Neon EVM)🏆 🏆 ETHGlobal Istanbul 2023 Finalist (ETHGlobal)

ETHGlobal Istanbul • 2024

zkRizz

Love at First Proof - The web3 dating platform that lets you be yourself.

TypeScriptRustsocialprivacy

🏆 Best use of zkEVM (Polygon)

ETHIndia 2023 • 2023

ZKFaceRecovery

Recover your Wallet using just your Face and Personal Trivia

privacy

🏆 Deploy on Scroll (Scroll)🏆 Best on Scroll (Scroll)🏆 Best use of zkEVM (Polygon)

ETHIndia 2023 • 2023

BlockBattle

BlockBattle: Next-Gen On-Chain Autonomous Multiplayer Game

gamingsocialprivacy

🏆 Unique Projects in Filecoin Ecosystem (up to 15 teams) (Filecoin & IPFS)🏆 Deploy on Scroll (Scroll)🏆 Honorable Mentions (Polygon)

ETHIndia 2023 • 2023

Subprime

Revolutionizing the way the world pays money, using undercollateralized accountable credit

defiprivacy

🏆 Best Use of Polygon ID to Preserve User Privacy (Polygon)

ETHIndia 2023 • 2023

CrypticCloak ( Stealth Micro Rollup )

A Stealth Address -based privacy enabling micro rollup for all EVM blockchains.

TypeScriptRustnftinfrastructureprivacy

🏆 Build a Consumer Product2nd place (Base)🏆 Deploy on Scroll (Scroll)🏆 Honorable Mentions (Polygon)🏆 🏆 ETHIndia 2023 Finalist (ETHGlobal)

ETHIndia 2023 • 2023

ZK Bridge

Connecting Chains, Preserving Privacy

definftinfrastructureprivacy

🏆 Deploy on Scroll (Scroll)🏆 Best use of zkEVM (Polygon)🏆 Best Use or Extension of Fathom Protocol2nd place (XDC Network)

ETHIndia 2023 • 2023

Digital Interaction & Data Exchange using SSI

Use SSI, VC’s & VP to prove credentials to different Institutes in a privacy focused manner with zero knowledge proofs, and selective disclosure.

privacy

🏆 Best Use of Polygon ID to Preserve User Privacy (Polygon)

ETHIndia 2023 • 2023

ZenPay

Zenpay aims to create a unique global RFID verification initiative. At its core, ZenPay aims to democratize payment and verification services, offering a secure, decentralized and stylish solution.

privacy

🏆 Best Use of Polygon ID to Preserve User Privacy (Polygon)

ETHIndia 2023 • 2023

AllowFlow

A decentralized Ethereum allowance platform for secure, time-bound transactions, fostering financial management in various relationships and use cases.

privacy

🏆 Best use of zkEVM (Polygon)

ETHIndia 2023 • 2023

Descrownomics

The code that holds your deal hostage (until it's done).

Rustinfrastructureprivacy

🏆 dApp Launchpad (Polygon)

ETHIndia 2023 • 2023

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