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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
BeginnerBlockchain 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
Solidity Developer
BeginnerSolidity 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.
Solidity Developer
IntermediateFoundry 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.
Solidity Developer
IntermediateAdvanced 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.
Solidity Developer
AdvancedSmart 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.
Solidity Developer
AdvancedAssembly 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.
Solidity Developer
AdvancedSmart 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.
Solidity Developer
AdvancedCurve Stableswap
Curve Stableswap
Learn Curve Stableswap and take your smart contract developer and security researcher skills to the next level. Curve Stableswap 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.
Solidity Developer
AdvancedUniswap 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.
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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
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
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
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
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
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
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
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
WalletConnect
Cyfrin blockchain and Foundry/AI courses were incredible. I've gained valuable knowledge, grown, empowering myself and others. Thank you, Cyfrin!
Idris
Developer Relations Engineer, Axelar
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