Tutorials
Step-by-step tutorials to help you build on Ethereum. From your first smart contract to advanced DeFi protocols, learn by building real projects.
Learning Paths
DeFi Developer
Build decentralized finance applications
NFT Developer
Create NFT collections and marketplaces
Security Engineer
Master secure smart contract development
All Tutorials
Deploy Your First Smart Contract
Learn the basics of Solidity and deploy a contract to Ethereum testnet
Create an ERC-20 Token
Build your own fungible token with minting, burning, and transfer functionality
Build an NFT Collection
Create an ERC-721 NFT collection with metadata, minting, and reveal mechanics
Build a Staking Contract
Create a DeFi staking protocol with rewards distribution and time locks
Upgradeable Smart Contracts
Learn proxy patterns to make your contracts upgradeable using UUPS and Transparent proxies
Testing with Foundry
Master smart contract testing with Foundry including fuzzing and invariant tests
Build a Multisig Wallet
Create a secure multi-signature wallet requiring multiple approvals for transactions
Integrate Chainlink Oracles
Connect your smart contracts to real-world data using Chainlink price feeds
Featured: Build an ERC-20 Token
What You'll Build
A fully functional ERC-20 token with minting, burning, and pausable functionality using OpenZeppelin contracts.
Steps
Code Preview
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract MyToken is ERC20, Ownable {
constructor() ERC20("MyToken", "MTK")
Ownable(msg.sender) {
_mint(msg.sender, 1000000 * 10**18);
}
function mint(address to, uint256 amount)
public onlyOwner {
_mint(to, amount);
}
}Additional Resources
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