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Hands-on courses for all levels

Learn blockchain fundamentals, smart contract development, and the auditing skills you need, online at your own pace. From blockchain concepts, essentials to Solidity, security, and web3 DevOps.

Solidity Developer

Beginner

Blockchain Basics

Blockchain Basics

Introductory blockchain developer course. Learn how blockchains and smart contracts work, and how to sign your first transaction. Whether you’re new or are a seasoned developer, there’s something here for you

23 lessons
3hrs
1 projects

Solidity Developer

Beginner

Solidity Smart Contract Development

Solidity Smart Contract Development

Start here if you’re new to writing smart contracts! Learn Solidity programming language and smart contract development from industry-leading experts and kickstart your career as a web3 developer.

65 lessons
5hrs
3 projects

Solidity Developer

Intermediate

Foundry Fundamentals

Foundry Fundamentals

Learn Foundry for Solidity and level up your Solidity developer skills. Discover advanced web3 development concepts and tools in the Foundry Fundamentals course. Learn Foundry Forge and Anvil, Chainlink Blockchain oracles, smart contract testing, and how to spin up local networks.

112 lessons
10hrs
3 projects

Solidity Developer

Intermediate

Advanced Foundry

Advanced Foundry

Learn advanced Foundry for Solidity smart contract development. Master web3 development techniques to write, deploy, test, optimize, and interact with your smart contracts using industry-standard tools. Lessons taught by the top smart contracts engineers in web3.

154 lessons
13hrs
4 projects

Solidity Developer

Advanced

Smart Contract Security

Smart Contract Security

Start your career as a smart contract security researcher! Learn smart contract auditing and the best practices for writing secure and optimized protocols. Explore fuzzing, invariant testing, and formal verification to identify bugs and protect web3 protocols.

270 lessons
24hrs
6 projects

Solidity Developer

Advanced

Assembly and Formal Verification

Assembly and Formal Verification

Learn exactly how the solidity compiler and opcodes work. Write contracts using Assembly and Yul, then learn how to write formal verification tests to guarantee your invariants hold.

152 lessons
11hrs
3 projects

Solidity Developer

Advanced

Smart Contract DevOps

Smart Contract DevOps

Following web3 DevOps guidelines and keeping an eye on smart contracts after they're live is key to making protocols and their users, safer. This course teaches you the best practices when dealing with web3 wallets and post-deployment security, teaching you how to keep smart contracts under control, even after they've been launched.

22 lessons
2hrs
1 projects

Solidity Developer

Advanced

Curve V1

Curve V1

Learn Curve V1 and take your smart contract developer and security researcher skills to the next level. Curve V1 is an advanced, DeFi developer specialization course taught by top smart contract engineer, ProgrammerSmart. It covers how Curve finance works, AMM and math, curves, liquidity pools, swaps, and more.

48 lessons
2hrs
0 projects

Solidity Developer

Advanced

Uniswap V2

Uniswap V2

Learn Uniswap v2 and level up your skills as a smart contract developer and security researcher with this advanced, deep dive specialization course on the Uniswap v2 contracts, router, Factory, liquidity pools, and much. Lessons taught by top smart contracts engineer, ProgrammerSmart.

75 lessons
6hrs
0 projects

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Student testimonials

We’ve helped thousands of people landing a job in web3 and level up their careers, but don’t just take our word for it:

If there’s one resource that Web3 developers point to, it’s Cyfrin’s ultimate tutorials. They’re standout resources that have empowered countless developers to learn blockchains, learn Solidity, and dive deep into Web3 development.

Chainlink

Chainlink

Chainlink

We can build systems for Ethereum scaling but without education, it’s all for nothing. Updraft is the first step towards adoption for Web3 education. We can now mint security focused developers at scale!

Tony Olendo

Tony Olendo

Lead Devrel Engineer, Polygon

Cyfrin's course was a cornerstone of my journey into Web3, providing me with the fundamentals and hands-on experience that have been pivotal to my journey in the blockchain space.

Raza

Raza

Lead Developer Relations, Scroll

Cyfrin Updraft videos on smart contract development have been instrumental in my blockchain journey, standing out with their clarity and accessibility. Their readiness to support and engage with learners makes me excited for more of their interactive and insightful content in the Web3 space

Francesco Andreoli

Francesco Andreoli

MetaMask

I took Cyfrin course and I’ve been working as a solutions developer at OpenZeppelin for the last few months. It was by far the most comprehensive resource and the one that really teached me the fundamentals and made me want to switch from web2 to web3

Gustavo Gonzalez

Gustavo Gonzalez

Solutions Engineer, OpenZeppelin

The Cyfrin courses were a game-changer for me. They provided a well-structured and comprehensive introduction to web3 and blockchain development. The knowledge I gained allowed me to transition into a full-time role as a blockchain developer. I can't recommend these courses enough!

Albert Hu

Albert Hu

DeForm Founding Engineer

I took Cyfrin’s courses, and I took them seriously. At least one hour every day, documented the progress, didn’t skip any second. Haven’t found a better web3 course since. Now I’m full-time in web3, working as Senior Developer Advocate at Ceramic Network.

Radek

Radek

Senior Developer Advocate, Ceramic

Cyfrin have been an absolute game-changers in my journey into blockchain. Saying their courses were remarkable, would be an understatement. Thanks to their expert guidance, I gained a deep understanding of blockchain to its roots. I'm forever grateful for their role in helping me get started in web3.

Boidushya

Boidushya

WalletConnect

Cyfrin blockchain and Foundry/AI courses were incredible. I've gained valuable knowledge, grown, empowering myself and others. Thank you, Cyfrin!

Idris

Idris

Developer Relations Engineer, Axelar

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