Education & standards

Speedrun Ethereum is a hands-on series of challenges designed to help you learn by building. Each challenge delivers one key "aha" moment, a mental unlock about how Ethereum really works. At the same time, you'll be building your Ethereum portfolio.

The Ethernaut is OpenZeppelin's browser capture-the-flag: each level is a broken contract you exploit to learn common Solidity vulnerabilities hands-on.

A rich and accessible Web3 toolset for learning, building, and testing on multiple chains

Damn Vulnerable DeFi is a hands-on Ethereum security training environment featuring realistic Solidity and DeFi exploitation challenges.

Explorer is a curated, open database of privacy-preserving tools and guides so builders can compare approaches before picking libraries or workflows.

RareSkills is an Ethereum and smart contract education platform with structured courses, bootcamps, and in-depth developer learning content.

Updraft is Cyfrin's free, hands-on curriculum for Solidity, security, Foundry, and DeFi: use it when you want structured exercises and certifications before shipping high-risk contracts.

Alchemy University offers tutorials and guided learning content for Ethereum developers, including smart contract and web3 app development.

Node Guardians is a gamified educational platform for intermediate to advanced developers. We create lore-rich programming challenges for accomplished Solidity developers. Think of it as a skill-based RPG for developers and a platform to showcase their abilities.

Solidity Testing Handbook is a comprehensive guide to testing smart contracts in the Solidity programming language. It covers the basics of testing, the different types of tests, and the tools available for testing.

Solodit is an open-source, community-driven platform dedicated to improving web3 security. It aggregates over 8,000 smart contract vulnerability reports, bug bounty opportunities, and security audits from top firms like Cyfrin, OpenZeppelin and Trail of Bits, alongside contributions from individual researchers. Solodit not only aggregates this information but also makes it actionable, equipping developers and auditors with tools to prevent exploits and enhance the safety of dapps.

Ackee is a blockchain security shop you hire for audits, tooling support, and training when you need hands-on review of Solidity systems and surrounding infrastructure.

BuidlGuidl CTF is a Solidity challenge platform where developers solve practical Ethereum security and smart contract puzzles.

Hacker Manuals & Privacy Guidelines to help the builders deliver practical privacy-enhancing projects, turn them into products, & scale being sustainable.

A community-sourced map of Ethereum UX pain points with solution checklists, adoption tracking, and real user evidence from 32,000+ reports.

Training, incubation, and acceleration programs for non-tech people and devs to start in the web3 privacy ecosystem.

OpenRPC is JSON-RPC schema tooling and generators in the spirit of OpenAPI: you describe RPC surfaces once, then ship typed clients, docs, and tests for Ethereum and L2 JSON-RPC stacks.

ethdebug proposes a compiler-emitted debug metadata format so debuggers can map EVM execution back to source without reverse-engineering compiler internals; solc and several debuggers are prototyping support.

Complete guide to ERC-4337 Account Abstraction - smart accounts, bundlers, paymasters, and more

EIP.Tools is a browser explorer for EIPs, ERCs, RIPs, and CAIPs with search, summaries, trending views, and a relationship graph when you need to skim how standards connect.

An ontology of Ethereum terms extracted from the Ethereum glossaries and Ethereum Improvement Proposals (EIPs). Available in plain text and SKOS formats.