openzeppelin/openzeppelin-contracts

The smart contracts which make up the Synthetix system. (synthetix.io)

Settle Interledger payments with ether and ERC-20 tokens

A platform for building DAOs

The OWL token and related smart contracts

GoodDollar Protocol

Common Contracts for Evolution Land

An extension to the ERC-20 standard token, which allows tokens to be put on hold. This guarantees a future transfer and makes the held tokens unavailable for transfer in the mean time. Holds are similar to escrows in that are firm and lead to final settlement.

Smart contracts interacting with Kleros.

Smart contracts for {Set} Protocol

Circles UBI fork of Gnosis Safe Ethereum multisig contract

Linnia Smart Contracts

Collection of smart contracts for the conditional tokens

Smart contracts of the Winding Tree platform

Stow Smart Contracts

Ethereum compiling for Democracy, tool for a distributed country

Smart Contracts for the Keep Network Core

Deployable Trading Rules for the AirSwap Network

A dao's registry

Hardhat utils for testing

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

A collection of utility functions for Ethereum

the most correct and second fastest glob implementation in JavaScript

Hardhat is an extensible developer tool that helps smart contract developers increase productivity by reliably bringing together the tools they want.

A Prettier Plugin for automatically formatting your Solidity code.

A deep deletion module for node (like `rm -rf`)

The semantic version parser used by npm.

Solidity Code Linter

Ethereum JavaScript API

yargs the modern, pirate-themed, successor to optimist.

Hardhat plugin that adds Hardhat support to Foundry projects

Truffle 5 Hardhat compatibility plugin

Hardhat plugin for using Web3 1.x

JavaScript testing helpers for Ethereum smart contract development.

Solidity preprocessor used to generate OpenZeppelin Contracts Upgrade Safe.

An ES-spec-compliant (proposed) Array.prototype.at shim/polyfill/replacement that works as far down as ES3

Utilities for handling Ethereum keys

A directed and undirected multi-graph library

Automatically expose internal functions for smart contract testing

Gas Analytics plugin for Hardhat

A wrapper for the keccak library to compute 256 bit keccak hash in JavaScript

Construct Merkle Trees and verify proofs

Code coverage for Solidity testing

Solidity AST schema and type definitions

Documentation generator for Solidity smart contracts.

An HTTP/1.1 client, written from scratch for Node.js