In 2024, the Web3 market was worth $7.05 billion, and is expected to hit $131.88 billion by 2032. You may not realize it but this is massive growth and opportunities for anyone ready to dive in early.

You don’t need to spend money on expensive courses to get started. So, here are the best free sources to learn about Web3.

Online Courses/Bootcamps

1. Cryptozombies 

CryptoZombies is an interactive platform that teaches you how to build decentralized applications (dApps). The program is built around creating a zombie-themed video game, where learners progress through interactive, browser-based coding lessons focused on Ethereum and Solidity. With its gamified approach, learning Solidity becomes fun, practical, and easy to grasp even for beginners. 

2. Alchemy University 

Alchemy University provides a full suite of free Web3 education programs. Their curriculum includes guided projects, interactive coding challenges, and hands-on learning. You can start with their free 3-week JavaScript for Blockchain Beginners course, then advance to their 7-week Ethereum Developer Bootcamp, which covers Solidity and Ethereum development in depth. 

3. LearnWeb3 

LearnWeb3 is a comprehensive platform that takes you from beginner to pro in Web3 development. It offers structured courses on blockchain fundamentals, advanced concepts, and even tools like React and Next.js. While it doesn’t teach HTML, CSS, or JavaScript directly, its intro to programming section recommends excellent resources for beginners. However, EarnWeb3 offers students a “bounty board” where they can join mini hackathons and challenges, competing for rewards like cryptocurrency prizes.

4. RareSkills 

RareSkills simplifies the Web3 learning journey by offering personalized guidance in small, selective cohorts. Its one-on-one approach makes complex topics easier to grasp, while covering advanced areas like Solidity, DeFi, and smart contract security. Learners gain the hands-on skills and confidence needed to excel in top blockchain careers all within a supportive and collaborative community. 

YouTube Channels 

5. FreeCodeCamp

FreeCodeCamp is one of the best free platforms to build a strong foundation when diving into Web3. It offers interactive lessons and certifications in core web development skills like HTML, CSS, JavaScript, and Python. Since Web3 development relies heavily on JavaScript and frameworks like React or Next.js, FreeCodeCamp gives beginners the essential skills needed to transition smoothly into blockchain and smart contract development. 

What makes it even better is the hands-on, project-based approach. Learners build real applications and can later apply the same coding logic when working with decentralized apps (dApps). 

6. Dapp University 

Dapp University is a popular platform for learning Web3 and blockchain development through hands-on, project-based tutorials. It’s known for its YouTube channel, where complex topics like Ethereum, Solidity, NFTs, DeFi, and full-stack dApp development are explained in a beginner-friendly way. The platform also offers bootcamps and courses that guide learners from building simple smart contracts to launching full decentralized applications. 

For beginners moving into Web3 or developers looking to specialize in blockchain, it’s a solid resource to gain confidence and create a portfolio of projects that showcase your skills. 

7. Simply Explained 

Founded by Xavier Decuyper, Simply Explained is a YouTube channel dedicated to making complex technology and blockchain topics easy to understand. Through clear explanations and engaging visuals, it breaks down everything from blockchain fundamentals to broader tech concepts in a way that feels approachable and beginner-friendly. 

Community and Forum 

8. UseWeb3 

UseWeb3 is a hub for smart contract development and Web3 courses. Instead of creating its own courses, it aggregates top resources from across the web covering tutorials, exercises, and platforms on topics like Solidity, Ethereum, NFTs, and DeFi. 

Whether you’re a complete beginner or looking to deepen your expertise, useWeb3 connects you to the right tools, lessons, and communities to grow faster in the space. 

9. Discord/Telegram 

Joining Web3-related channels and groups is one of the fastest ways to connect with developers, enthusiasts, and maxis in the space. Platforms like Discord and Telegram are especially popular in the Web3 ecosystem because they serve as real-time hubs for networking and collaboration. 

10. Reddit

Reddit is a valuable place to learn and connect in Web3, especially through r/ethdev (focused on Ethereum development) and r/Web3 (broader discussions on building a decentralized web). These communities share technical Q&A, tutorials, code snippets, and resources, making them great spots for both beginners and advanced developers. 

Documentations and Guides 

11. Web3.js Documentation 

This is a robust JavaScript library that developers can use to interact with the Ethereum blockchain. With it, apps can check balances, send and receive crypto, or interact with smart contracts, basically everything needed to make a website or app work with Ethereum.

12. Solidity Documentation 

The official Solidity documentation is one of the most important resources for learning to write smart contracts. Since it comes directly from the creators of the language, it provides accurate, up-to-date information, detailed explanations of features, and practical examples.