Plugins
Plugins are the backbone of Hardhat, and they're built using the same config DSL that you use in your Hardhat configuration. Read the Building plugins guide to learn how to create your own, and send a pull request to get it listed here.
Extend Hardhat's functionality with the plugins below.
Injects ethers.js into the Hardhat Runtime Environment
Code coverage for Solidity
Adds a Waffle-compatible provider to the Hardhat Runtime Environment and automatically initializes the Waffle Chai matchers
Hardhat plugin for Deployments
Gas usage per unit test. Average gas usage per method. A mocha reporter.
Automatically verify contracts on Etherscan
Generate TypeChain type definitions for smart contracts.
A hardhat-deploy plugin for Ethers.js v5
Injects Web3 1.x into the Hardhat Runtime Environment
Calculate compiled contract sizes
Integration with TruffleContract from Truffle 5
Easily integrate your Hardhat project with Tenderly. Tenderly is an Ethereum monitoring, debugging and analytics platform.
Hardhat plugin for deploying and managing upgradeable contracts.
Easily run solhint to lint your Solidity code
Automatically export Solidity contract ABIs on compilation
Automatically run Hardhat actions on file changes.
Automatically prepend local Solidity source files with an SPDX License Identifier
An hardhat plugin to pre-process contract source code before compilation
Remove Hardhat console.log imports and calls from Solidity source files
Hardhat plugin for managing Ganache
smock is a utility package that can generate mock Solidity contracts written entirely in JavaScript.
Generate a static documentation site from NatSpec comments
Automatically run the solpp preprocessor before each compilation
See emitted events during your hardhat tests in the console
Integrates Hardhat and ethers.js with Optimism's L2 network.
Automatically compiles your Solidity contracts with the OVM compiler.
Compile Solidity sources directly from NPM dependencies
Buidler plugin for Aragon App development
Provide tasks to integrate Circom and SnarkJS
Integrate your Hardhat project and Hardhat network with Ethernal. Ethernal is a block explorer for private chains.
Allow loading network configs for Hardhat projects in home file
A Hardhat plugin that generates a React hook component from your smart contracts. Hot reloaded into your React app. Deployed or not deployed. And everything typed and initialized.
Automatically fetch contract ABI from Etherscan
Adds support to compile Vyper smart contracts
Automatically deploy the ERC-1820 registry contract to Hardhat EVM chains.
Injects Web3 0.20.x into the Hardhat Runtime Environment
A Buidler plugin to generate a descriptor of your Solidity source code
Integration with TruffleContract from Truffle 4