From zero to your first smart contract. A practical guide to setting up, building, and securing your on-chain projects.

⚙️ 1. Setup Your Environment

Before you write a single line of code, get your workspace ready.

• Wallet & Networks — Chainlist — Add any network or testnet to your wallet in one click.
• Cloud IDE — Gitpod — Run your code on cloud servers with no local install needed. Great for getting started fast.
• ETH Unit Converter — eth-converter.com — Instantly convert between ETH, Gwei, and Wei. Essential when reading contract values.

🚰 2. Get Test Tokens (Faucets)

Testnets let you deploy and interact with contracts for free. You'll need test tokens to pay gas.

• Chainlink Faucet — Get Sepolia ETH for testing.
• Optimism Faucet — Simple and fast, no requirements needed.

📖 3. Learn to Build

The best resources to go from zero to writing and deploying smart contracts.

• The Full Course — Cyfrin Foundry Course by Patrick Collins — The most comprehensive free course to learn Solidity & Foundry. Start here.
• Learn by Doing — SpeedRunEthereum — Guided challenges to learn Ethereum development step by step.
• Multi-sig Wallets — Updraft by Cyfrin — Learn to verify and approve transactions using a Safe multi-sig wallet.

🔧 4. Core Dev Tools

The toolkit every Web3 developer uses daily.

• Foundry — book.getfoundry.sh — The go-to Solidity development framework. Essential reading.
• Alchemy — alchemy.com — Launch and connect to a blockchain node without running your own hardware.
• OpenZeppelin Wizard — wizard.openzeppelin.com — Generate audited smart contract templates based on the features you want (ERC-20, ERC-721, access control…).