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.

Dapp learning project for developers at all stages. Becoming and cultivating sovereign individuals. Nonprofit organization.

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

Guidelines and training material to write secure smart contracts

Web3/Solidity based wargame

weird erc20 tokens

Multicall: Aggregate multiple constant function call results into one

Collection of smart contracts deployable via thirdweb

A collection of helpful contracts and libraries for use with Forge and Foundry

Multicall: Aggregate multiple constant function call results into one

Official repository for core projects comprising the Celo platform

Build your first app on Optimism!

Smart contracts which are formally verified

1inch Protocol – fully on-chain DeFi aggregation protocol

Smart Contracts for Argent Wallet

Official repository for Paradigm CTF 2021

Simple clone contract factory

All the contracts related to the Defi Saver ecosystem

a proxy object that can compose transactions on owner's behalf

Ethernaut puzzles solved with foundry

An upgradeable, meta-transaction-enabled smart wallet for earning interest on stablecoins while retaining custody of funds, with an added security backstop provided by Dharma Labs.

Assertions, equality checks and other test helpers

A data structures library that does memory management for you

Public repo for the community devs to advance the Beefy protocol.