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Blockchain Project

Sharpen your Blockchain development skills with these structured projects — starting from beginner-friendly DApps, moving into more advanced use cases, and finally tackling a Mega Project (Decentralized Exchange - DEX).

🟢 Simple Projects​

Crypto Wallet Simulator​

Crypto Wallet Simulator

Description:
Build a simple wallet interface where users can generate a wallet address, view balance (mock data), and send/receive tokens.

How to Build:

  • Use libraries like ethers.js or web3.js to generate Ethereum wallet addresses.
  • Simulate transactions with dummy data (no real blockchain needed at this stage).
  • Display balance, transaction history, and allow “send/receive” interactions.

Blockchain Voting System​

Blockchain Voting System

Description:
A secure voting app where each vote is recorded on a blockchain (mock or testnet).

How to Build:

  • Define a smart contract to store candidates and votes.
  • Ensure that each wallet address can only vote once.
  • Create a frontend where users can connect wallets (e.g., with MetaMask).
  • Show results in real time using contract state.

NFT Minting DApp​

NFT Minting DApp

Description:
A decentralized application where users can mint and view their NFTs.

How to Build:

  • Deploy a basic ERC-721 contract for NFTs.
  • Connect the frontend to a wallet like MetaMask.
  • Allow users to mint new NFTs with metadata (image, name, description).
  • Show minted NFTs in a gallery view.

Token Faucet​

Token Faucet

Description:
A faucet that lets users claim free test tokens on a testnet.

How to Build:

  • Deploy an ERC-20 token contract.
  • Write a smart contract function to send tokens when requested.
  • Add a frontend with a “Claim Tokens” button.
  • Prevent abuse by limiting how often a wallet can claim.

🔴 Advanced Projects​

Decentralized Blog (Content Storage)​

Decentralized Blog

Description:
A blogging platform where posts are stored on a decentralized network like IPFS.

How to Build:

  • Use IPFS or Filecoin to store blog content.
  • Store metadata (title, author, hash of content) in a smart contract.
  • Build a frontend to fetch and display posts from IPFS.
  • Enable authors to create posts by connecting their wallets.

Supply Chain Tracker​

Supply Chain Tracker

Description:
A blockchain system to track goods through the supply chain.

How to Build:

  • Define a smart contract that logs each step of an item’s journey.
  • Each participant (supplier, manufacturer, distributor) updates product status.
  • Use unique IDs for products (hashes or QR codes).
  • Build a dashboard where users can trace a product’s full history.

Decentralized Identity (DID) App​

Decentralized Identity App

Description:
A system where users own and control their digital identity on the blockchain.

How to Build:

  • Store user identity data (e.g., name, credentials) on-chain or in a decentralized storage.
  • Allow users to prove ownership via wallet signatures.
  • Enable third parties to verify identity without exposing sensitive data.

DAO (Decentralized Autonomous Organization)​

DAO Platform

Description:
A governance app where token holders vote on proposals.

How to Build:

  • Deploy a smart contract to create and manage proposals.
  • Token holders cast votes based on their holdings.
  • Winning proposals execute actions (e.g., fund transfers).
  • Create a frontend showing proposals, votes, and results.

🧮 Mega Project​

Decentralized Exchange (DEX)​

DEX (Decentralized Exchange)

Description:
Build a Uniswap-like DEX where users can swap tokens, provide liquidity, and earn fees.

How to Build:

  • Implement a smart contract with an Automated Market Maker (AMM) model.
  • Allow users to swap between ERC-20 tokens.
  • Enable liquidity providers to deposit tokens and earn fees.
  • Build a frontend with wallet connection, token swap UI, and pool management.