OpenZeppelin Contracts is a library for secure smart contract development.

WTF Solidity 极简入门教程，供小白们使用。Now supports English! 官网: https://wtf.academy

Reproduce DeFi hacked incidents using Foundry.

Modern, opinionated, and gas optimized building blocks for smart contract development.

A compilation of patterns and best practices for the smart contract programming language Solidity

The Lens Protocol

A practical example on how to perform sandwich attacks on Ethereum

Examples of Solidity security issues

Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.

weird erc20 tokens

Tutorial for building DeFi arbitrage bots

Simple, intentionally-limited versions of web3 protocols & apps.

Best resources for Solidity gas optimizations ⛽

I'm sharing everything I'm learning to become a Blockchain Engineer

Forge Standard Library is a collection of helpful contracts for use with forge and foundry. It leverages forge's cheatcodes to make writing tests easier and faster, while improving the UX of cheatc…

Build your first app on Optimism!

Semgrep rules for smart contracts based on DeFi exploits

Long-tail MEV contracts to claim Otherside land NFTs

Smart contracts that powers the PoS (proof-of-stake) based bridge mechanism for Matic Network

A zkRollup DEX & Payment Protocol

Flexible, minimalist, and gas-optimized yield aggregator protocol for earning interest on any ERC20 token.

A simple and sufficient ERC20 implementation

HomeWork is an autonomous utility for finding, sharing and reusing home addresses for contracts.

An ERC20 token faucet on the Ethereum mainnet, layer 2s and testnets

Moloch DAO v2 with multi-summoner capabilities, plus register function for metadata.