openzeppelin/openzeppelin-contracts

JavaScript testing helpers for Ethereum smart contract development.

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

A collection of utility functions for Ethereum

Utilities for handling Ethereum keys

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.

Gas Analytics plugin for Hardhat

Construct Merkle Trees and verify proofs

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

Code coverage for Solidity testing

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

Ethereum JavaScript API

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

Hardhat utils for testing

Truffle 5 Hardhat compatibility plugin

Hardhat plugin for using Web3 1.x

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

A directed and undirected multi-graph library

Automatically expose internal functions for smart contract testing

Hardhat plugin that adds Hardhat support to Foundry projects

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

Solidity AST schema and type definitions

Documentation generator for Solidity smart contracts.