The 30+ Best Web3 Tutorials for Blockchain Development

Written by Alchemy

Reviewed by Brady Werkheiser

Published on July 8, 202212 min read

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Web3 tutorials are one of the primary ways for developers learning web3 development to understand blockchain programming. This overview is a curated list of some helpful tutorials across the ecosystem's most popular chains like Ethereum, Layer 2s, sidechains, and Solana and product spaces like NFTs and DeFi. 

Tutorials can be part of a single course, or in a module in a larger bootcamp, such as the coding exercises throughout Alchemy University's free 7-week Ethereum Bootcamp and Javascript crash course.

Whether you’re looking for an NFT tutorial, how to create a smart contract on Ethereum, and much more, here’s what you need to know about the best Web3 tutorials. 

What is a Web3 Tutorial?

A web3 tutorial is a guided experience, where participants can asynchronously learn how to complete a specific task by following written steps such as tutorials hosted in documentation and/or video walkthroughs hosted on the web3 YouTube accounts.

Tutorials have played a crucial role in the growth of the Web3 space because it makes education for developing Web3 projects accessible to anyone who wants to learn. 

Why are tutorials helpful ways to learn Web3 development?

Tutorials are helpful for developers because it empowers developers to learn by doing instead of only conceptually understanding how blockchain technology and developer tooling works to create smart contracts, NFTs, and decentralized finance applications.

Learning from developers with more experience saves lots of time and effort because they can help you avoid common mistakes and oversights. While online web3 developer courses and bootcamps are good ways to learn in a structured, educational manner, one-off tutorials enable learners to practice at their own pace and schedule.

What makes a good Web3 tutorial?

A good web3 tutorial is from a reputable source such as a Web3 developer thought leader, written guides are well-organized and easy to read, written guides are supplemented with visuals, diagrams, or videos, code snippets are explained, and developers are given additional resources to deepen their learning, receive help, or troubleshoot errors.

Best Ethereum Tutorials for Developers

Ethereum is the main blockchain used by Web3 developers to create dapps because of their introduction of smart contracts. Smart contracts execute an action on the blockchain based on the contents and instructions inside an immutable contract written in code. Ethereum’s smart contracts make up the foundation for NFTs and many Web3 dapps. 

How to Deploy your own ERC-20 Token

ERC-20 tokens are the standard tokens that are used on the Ethereum blockchain. Learning how to deploy your own ERC-20 token is an important skill for Web3 developers because of how commonly used this token is to create smart contracts. 

This tutorial was developed by Web3 University, a website that provides many tutorials for Web3 developers. This tutorial walks you through setting up Hardhat, setting up ERC-20 contracts and scripts, and deploying your ERC-20 token onto the Ethereum blockchain. The tools this tutorial uses are Hardhat and Alchemy. 

ERC-20 tokens are a fundamental part of Web3 development on Ethereum and they are often used as a building block in more complex Web3 development projects. 

Build a Web3 App with Solidity + Ethereum Smart Contracts

Web3 apps are decentralized apps (dapps) that use blockchain technology. Learning how to develop Web3 apps is an important aspect of Web3 development because it allows you to use the blockchain for almost anything. 

This tutorial was created by Buildspace, a website that provides great tutorials for developers looking to build their own Web3 projects. In this tutorial, you will be creating a website that allows anyone to send you an emoji. You will learn about creating a smart contract, connecting to your wallet, interacting with the contract, deploying a smart contract, and improving on the UI. 

This tutorial also provides resources for help and the ability to communicate with other developers who are following the same tutorial (you have to enroll in the project first). Some prerequisites include: 

• terminal skills

• familiarity with JavaScript

• familiarity with react.js. 

This tutorial uses MetaMask and Hardhat and the full code used in this tutorial can be found on Github. 

Hardhat Tutorial for Beginners

Hardhat is a blockchain developer tool that helps accelerate Ethereum development. For new Web3 developers looking to build on Ethereum, learning how to use Hardhat is a fundamental tutorial everyone should complete.

This Hardhat tutorial explains how developers can: 

• use Hardhat to create a new Hardhat project

• configure a Node.js environment

• develop smart contracts

• use Ethers.js 

• debug Solidity

• deploy contracts to Hardhat and testnets 

• and more.

Hardhat is a core piece of Web3 developer tooling, and this is an essential tutorial for Web3 developers.

More Great Ethereum Tutorials:

Here are some more Ethereum tutorials:  

• How to Create an ERC-20 Token (4 Steps) - this easy-to-follow tutorial walks you through how to deploy your own ERC-20 token on Ethereum (testnet).

• How to Integrate Historical Transaction Data into your dapp - add historical block information to your dapp with the Alchemy Transfers API.

• How to Build a Staking dapp - learn how to develop your own dapp with interest accrual, slashing, and deposit and withdrawal functionality. 

Best NFT Tutorials for Developers

Non-fungible tokens (NFTs) have significantly grown in popularity in recent years. NFTs are currently being used in a wide range of applications from virtual real estate to document verification. Knowing the basics of creating, minting, and selling NFTs is important for Web3 developers. 

How to Create Your First NFT Smart Contract

An NFT smart contract facilitates the sale of the NFT between the buyer and the seller. Developing an NFT smart contract is a crucial step in the process of creating and selling an NFT. 

This tutorial was developed by OpenSea, Ethereum’s largest NFT marketplace. From the tutorial, the developer leaves with the ability to create an NFT smart contract, mint an NFT from the smart contract, add metadata to the smart contract, and add improvements. The tools you will need for this tutorial are: 

• Solidity

• Hardhat

• Ethers.js

• Etherscan

• IPFS (NFT.storage)

• MetaMask

• Alchemy

• and OpenZeppelin. 

This tutorial can help you become more familiar with how NFT smart contracts work and how to refine them. These skills are important so that you can start selling your NFTs. 

How to Create an NFT Marketplace From Scratch

An NFT marketplace is where NFTs can be bought and sold. Learning how to create an NFT marketplace is a good project for developers because you can provide niche features that are ideal for a specific target audience or specialize in types of art that more popular NFT marketplaces don’t have. 

This tutorial teaches you how to: 

• Set up MetaMask

• Set up your environment variables

• Upload your data to IPFS

• Write an NFT smart contract

• Upload your NFT metadata

The tools this tutorial uses are: 

• Alchemy

• IPFS

• Hardhat

• ethers.js. 

While knowing how to develop an NFT marketplace is not essential for new Web3 developers, it allows developers to practice important skills like creating a smart contract, using Hardhat, and more. Developing an NFT marketplace can also be a really fun project for developers who are specifically interested in NFTs. 

This tutorial focuses on developing the smart contract for the NFT marketplace and not the frontend. However, this tutorial does provide frontend code on Github. 

How to Build Dynamic NFTs on Polygon

A dynamic NFT is an NFT that changes in response to external conditions or data that it reads. Learning how to build dynamic NFTs on Polygon is a fun project for Web3 developers who are specifically interested in NFTs.

This tutorial was developed by Chainlink, a Web3 company that also provides many tutorials for developers. In this tutorial, you build a dynamic NFT that changes based on weather data. It walks you through setting up environment variables and then seeing your dynamic NFT on Etherscan. The tool this tutorial uses is Truffle. 

Additional NFT Tutorials 

Here are some more NFT tutorials that you should check out: 

• NFT Minter Tutorial: How to Create a Full Stack Dapp - build an NFT minter and a full stack dapp by connecting your smart contract to a React frontend.

• How to Mint an NFT with Ethers.js - learn how to mint an NFT on the Ethereum blockchain using Ethers.js via the ethers.js library. 

• How to Mint an NFT Using Web3.js - learn how to mint an NFT on Ethereum using the Web3.js library.

• How to Build an NFT Website - learn how to deploy your NFT minter to a live website. 

• How to Make NFTs with On-Chain Metadata - learn how develop fully dynamic NFTs with on-change metadata and how to deploy it on Polygon Mumbai.

• How to Create an NFT Gallery - learn how to develop an NFT gallery that displays NFTs by wallet address and smart contract. 

• How to Create a Dynamic NFT- learn how to build dynamic NFTs that change based on market data using Chainlink Oracles.

Best DeFi Tutorials for Developers

Decentralized Finance (DeFi) is one of the main applications of blockchain technology. DeFi is a broad topic with many aspects ranging from creating a decentralized exchange to fund management. 

Create and Deploy a DeFi App

A DeFi app is any kind of app that allows people to engage in decentralized finance. Learning how to develop a DeFi App is important because it will allow you to apply blockchain technology to new areas of finance. 

This tutorial can be found on the Ethereum website that have been developed and shared by the community. This tutorial builds a DeFi app where users can create and exchange ERC-20 tokens for Farm Tokens using tools including Truffle and Ganache.

For Web3 developers looking to get into DeFi, it is important to start with making simple DeFi apps because it provides a solid foundation for developing more complex DeFi projects. 

The Ultimate Cryptocurrency Exchange Programming Tutorial

A cryptocurrency exchange is where people can buy and sell cryptocurrencies. Creating a cryptocurrency exchange is a fun project for DeFi developers looking to practice their skills. 

This tutorial was developed by dapp University, a website and Youtube channel that makes Web3 tutorials. The tutorial is split into Part 1 and Part 2 and uses Node.js, Ganache, Truffle, and Metamask as tools. This tutorial covers how to write smart contracts using Solidity, test the contracts, deploy the contracts to the blockchain, then develop the client-side application. The code for this tutorial is available on Github.

Chainlink- Blockchain Fintech: Borrowing and Lending with Python

Borrowing and lending money in Web3 is a basic function that developers who wish to enter the DeFi space should be familiar with. Learning how to borrow and lend money on the blockchain is incredibly useful for more complex DeFi projects. 

This tutorial covers how to: 

• Coding in Python to deposit collateral during the borrowing process

• Taking out a loan

• Repaying a loan

This tutorial uses Web3.py and Brownie as tools.

Best Polygon Tutorials for Developers

Polygon develops scaling solutions for the Ethereum blockchain that facilitates the development of Web3 apps. Incorporating Polygon into your Web3 projects means that your projects can scale better, since Polygon offers lower costs and faster transaction speeds. 

How to Create an ERC-20 Token on Polygon 

As mentioned above, ERC-20 tokens are the standard tokens used on the Ethereum blockchain. For Web3 developers who want to use Polygon, learning how to develop an ERC-20 token is a foundational skill. 

The tools this tutorial uses are: 

• Remix

• Brave Wallet

• OpenZeppelin

• Polygon Mumbai

• Polygon Faucet. 

This tutorial covers setting up all the tools, creating a smart contract, and deploying the smart contract for the ERC-20 token. 

Once you have become confident in developing ERC-20 tokens, you can move onto more complex projects that require the use of smart contracts. 

How to Create a Hello World Smart Contract on Polygon

Smart contracts are contracts that run on blockchain and facilitate all kinds of interactions on Web3. Becoming familiar with creating smart contracts significantly unlocks your Web3 development abilities. 

The tools this tutorial uses are: 

• Metamask

• Solidity

• Hardhat

• Alchemy. 

This tutorial covers: 

• setting up the tools

• writing the smart contract

• connecting Metamask and Alchemy to your project

• deploying the contract. 

How to Create and Sell NFTs on Polygon

Creating and selling NFTs on Polygon does not require any gas fees. NFTs transactions on Polygon are also faster than using the blockchain directly. for these reasons, it is important for Web3 developers in the NFT space to be familiar with Polygon. 

This tutorial is incredibly straightforward and does not require any lines of code! The visuals walk you through creating an NFT, selecting the Polygon blockchain, and more.

NFTs make up the foundation of many Web3 apps, especially games. Polygon is appealing to NFT developers because there are no gas fees and the transaction speed is higher. 

Best Arbitrum Tutorials for Developers

Arbitrum is a kind of Ethereum scaling solution that uses Optimistic rollups to increase transaction speeds and reduce gas fees. Optimistic rollups contain many transactions at once and deploys them all onto the blockchain as one transaction. Becoming familiar with development on Arbitrum is very important for developers who wish to take advantage of Arbitrum’s features for their Web3 projects. 

How to Build and Deploy a Smart Contract on Arbitrum

Smart contracts operate slightly differently on Arbitrum than the regular Ethereum blockchain. Smart contracts in Arbitrum represent a multitude of transactions that were executed off-chain instead of just one transaction. Knowing how to build a smart contract on Arbitrum is very important for Web3 developers who wish to use Arbitrum for their Web3 projects. 

This tutorial from Chainlink creates a smart contract that contains real time price data for ETH. This tutorial covers: 

• Creating a smart contract on Arbitrum

• Deploying a smart contract on Arbitrum

• Testing a smart contract on Arbitrum

This tutorial uses: 

• Arbitrum Rinkeby Testnet

• Chainlink faucets

• Metamask

 This tutorial also comes with a YouTube video that walks through the code. 

Arbitrum MetaMask Tutorial 

MetaMask is a wallet that can be used for Web3 apps, NFTs, and more. Learning Metamask is an essential skill for Web3 developers.

For more information, read Alchemy's tutorial on connecting Metamask to Arbitrum. This tutorial goes over many important aspects of developing with Arbitrium like: 

• Connecting Arbitrum to Metamask

• Bridging Arbitrum to Ethereum

• Withdrawing ETH to Arbitrum. 

This tutorial uses:

• Arbitrum

• Metamask

• Uniswap

A Beginner’s Guide To The Arbitrum DeFi Ecosystem 

Arbitrum’s lower gas fees and higher transaction speeds can make DeFi more efficient. Learning the basics of DeFi on Arbitrum is important for DeFi developers who are interested in learning more about how Arbitrum can improve their projects. 

This tutorial was developed by Infinite Bid, a Youtube channel that makes tutorials for Web3 developers. This tutorial covers: 

• using Arbitrum for many aspects of decentralized finance like decentralized exchanges, lending, and borrowing.

•  the different options you have for bridging Arbitrum to the Ethereum blockchain.

Arbitrum NFTS: Creating and Deploying ERC-721

Developing NFTs is an important aspect of Web3 development. Knowing how to develop NFTs on Arbitrum is important for developers who want to utilize Arbitrum’s features for their NFTs or projects that rely on NFTs. 

This tutorial covers: 

• Creating an Ethereum wallet using Metamask

• Connecting to the Arbitrum testnet

• Creating a Hardhat project

• Creating an Arbitrum NFT smart contract

This tutorial uses: 

• Alchemy

• Metamask

• Hardhat

• Ethers.js

• Arbitrum Testnet

• Rinkeby ETH

This tutorial is essential for developers in the NFT space looking for ways to improve the process of developing an NFT. 

Best Optimism Tutorials for Developers

Optimism is another Ethereum scaling solution that uses Optimistic rollups. It is another option for developers looking to take advantage of layer-2 scaling solutions for their Web3 projects. 

Getting Started Developing for Optimism

Optimism is a Ethereum scaling solution that executes many transactions off-chain, then places all of them onto the main blockchain as a single transaction. Learning how to use Optimism is important for developers who wish to take advantage of the lower costs and faster transaction times that layer-2 solutions offer. 

This tutorial was developed by Optimism to help developers get started with using Optimism. This tutorial walks you through: connecting to Optimism using many different kinds of tools like Hardhat, Truffle, Remix, and more. 

Once you’ve completed this tutorial, you are ready to start using Optimism for Web3 development!

Deploying a Basic Contract on Optimism

Deploying a smart contract using Optimism is different from deploying a smart contract directly onto the Ethereum blockchain. Ethereum developers should be familiar with deploying a contract on Optimism if they wish to use Optimism for more complex Web3 transactions or projects. 

The tool this tutorial uses is Metamask. This tutorial covers: 

• Connecting to Optimism with Metamask

• Writing the smart contract on Optimism

• Deploying the contract

• Viewing the contract on Etherscan

Bridging L1 and L2 on Optimism

Optimism is a Layer 2 (L2) blockchain that uses optimistic rollups to settle transactions on the Ethereum Mainnet (Layer 1). Therefore, knowing how to bridge between L1 and L2 networks and send data between them is essential for developers who use Optimism for their projects. 

This is a series of tutorials developed by Optimism teaching developers how to bridge Optimism to the Ethereum blockchain. The first tutorial covers the basics, the second tutorial covers using the Standard Token Bridge, while the third tutorial covers transferring data between the L1 and L2 blockchains. 

There’s also a Discord community of Optimism developers and another link to receive help if you get stuck during the tutorial. 

Best Starknet Tutorials for Developers

Starknet is another layer-2 Ethereum scaling solution. Unlike Arbitrum and Optimism, Starknet uses zero-knowledge rollups which reduce gas fees, increase transaction speeds, and keep information private. The zero-knowledge proofs that Starknet has developed (SNARKS) mean that smart contracts can be verified without revealing the information the smart contracts contain.

Starknet ERC 721 Tutorial

An ERC 721 token is the standard Ethereum token used for NFTs. Learning how to develop ERC 721 tokens is an important foundation for developing NFTs on Starknet. 

This tutorial was developed by Starknet and can be found on their website. This tutorial covers: 

• The basics of ERC 721 tokens

• Minting and burning NFTs

• Adding permissions and payments

• Minting NFTs with metadata

This tutorial also provides instructions to join the Starknet Discord server where you can reach out to Starknet for help if you get stuck during the tutorial. 

Compile, Deploy and Interact with a Starknet Contract

Learning how to develop smart contracts is a fundamental aspect of Web3 development. Knowing how to compile, deploy, and interact with Starknet smart contracts allows you to use Starknet for more complex Web3 projects.

This video tutorial was developed by Starknet and uses the Cairo programming language. This tutorial covers: 

• Using the Starknet Command Line Interface (CLI) to compile code

• The Starknet CLI to deploy the contract to Starknet

• Using the Starknet function call to look up the balance in the smart contract

• Using Starknet functions to invoke an increase of the balance in the smart contract

Best Solana Tutorials for Developers

Solana is another blockchain that is often used for Web3 development than the Ethereum blockchain. Solana can process transactions significantly faster than Ethereum, however Ethereum still has many more developers and dapps. Still, Solana is becoming more and more popular for Web3 developers. Being familiar with Web3 development on Solana, can improve your dapps and your development skills.

An Introduction to Solana Programming

Before you start using Solana for Web3 development, you need to be familiar with coding on Solana. This tutorial is the introduction that Solana provides for developers to start using Solana. 

The Solana website provides many resources for developers. It requires no previous knowledge of programming with Solana. This tutorial uses the Solana dev tools and Rust. This tutorial covers some interesting concepts like program derived addresses and cross-program invocation.

The Complete Guide To Full Stack Solana Development

Full stack development is software with both client side and server side. Learning full stack Solana development is important to practice your Solana development skills but also to build more complex Web3 projects that can carry out many different kinds of tasks. 

This tutorial is also provided on the Solana website. This tutorial covers: 

• How to set up your project

• airdropping tokens to your personal development account

• deploying the app to various networks. 

The tools this tutorial uses are: 

• React

• Anchor

• Solana/web3.js

• Phantom

• Node.js

There is also a Q&A section at the bottom in addition to a discussion section where developers can post their questions and receive helpful answers. 

Build a Web3 App on Solana with React and Rust

As Solana gains popularity, being familiar with Web3 app development on Solana will take your Web3 projects to new heights. This guide from Buildspace walks you through how to build a Web3 app on Solana.

The app developed in this tutorial displays GIFs. This tutorial covers: 

• Connecting to a Solana wallet

• Writing a Solana program

• Deploying the Web3 app

The tools in this tutorial are: 

• Phantom as the Solana wallet

• React.js

• Replit

Prerequisites include terminal skills, javascript, and React.js. You can also receive support if you get stuck during the tutorial by enrolling in the project. 

Use the Best Web3 Tutorials to Start Building

Tutorials are a crucial part of learning to develop Web3 projects. Tutorials make the development process more efficient and more educational. Once you’ve completed these tutorials and are familiar with the basics of Web3 development, you are ready to start building your own projects!