Plugins are the backbone of Hardhat, and they're built using the same config API 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.
Nomic Foundation's recommended bundle of Hardhat plugins
Adds Ethereum-related matchers to Chai
Injects ethers.js into the Hardhat Runtime Environment
Automatically verify contracts on Etherscan
Makes it easier to use Hardhat and Foundry in the same project
Adds support to compile Vyper smart contracts
Easily run solhint to lint your Solidity code
Automatically run the solpp preprocessor before each compilation
Adds a Waffle-compatible provider to the Hardhat Runtime Environment and automatically initializes the Waffle Chai matchers
Injects Web3 1.x into the Hardhat Runtime Environment
Integration with TruffleContract from Truffle 5
Injects Web3 0.20.x into the Hardhat Runtime Environment
Integration with TruffleContract from Truffle 4
Community pluginsSorted by npm downloads
Code coverage for Solidity
Gas usage per unit test. Average gas usage per method. A mocha reporter.
Zero-config TypeChain support for Hardhat.
Automatically run Hardhat actions on file changes.
Hardhat plugin for Deployments
Hardhat plugin for deploying and managing upgradeable contracts.
Calculate compiled contract sizes
Automatically export Solidity contract ABIs on compilation
A hardhat-deploy plugin for Ethers.js v5
Easily integrate your Hardhat project with Tenderly. Tenderly is an Ethereum monitoring, debugging and analytics platform.
See internal transactions, events and storage operations during your hardhat tests in the console
Zero-config Hardhat plugin to generate documentation for all your Solidity contracts.
Zero-config Hardhat plugin to check the output of the compiler for any problems like missing NatSpec
Exporting solidity contract storage layout
An hardhat plugin to pre-process contract source code before compilation
A plugin for integrating Starknet tools into Hardhat projects
Remove Hardhat console.log imports and calls from Solidity source files
Compile Solidity sources directly from npm dependencies
Generate a static documentation site from NatSpec comments
Automatically deploy the ERC-1820 registry contract to Hardhat EVM chains.
Automatically prepend local Solidity source files with an SPDX License Identifier
Hardhat plugin to combine multiple ABIs into a Diamond ABI artifact
Hardhat plugin to deploy your smart contracts across multiple EVM chains with the same deterministic address.
Integrate your Hardhat project and Hardhat network with Ethernal. Ethernal is a block explorer for private chains.
Allows changing the current network in Hardhat.
Automatically expose internal Solidity functions for testing
A jest environment with hardhat built in.
Define your project's deployment in a simple manifest, then deploy and share it anywhere. Inspired by Docker, Terraform, and npm. https://usecannon.com/
Automatically fetch contract ABI from Etherscan
Helper plugin to manipulate blocks timestamp and trigger mining. It can be used from the command line and in the tests.
Hardhat made awesome with a flexible CLI to help run tests, scripts, deploy Mock contracts and more.
A plugin to push contracts to tenderly
Allow loading network configs for Hardhat projects in home file
Hardhat plugin for Unlock Protocol deployments.
Prepare the contract artifacts and the TypeChain bindings for registry deployment.
Develop your subgraph side by side with your contracts to save gas and increase productivity.
This Hardhat plugin provides two tasks and two functions to help you manage and optimize your transactions on Ethereum compatible blockchain. The two tasks include the ability to retry a transaction and retrieve the current gas cost.
This Hardhat plugin add 3 tasks to Hardhat, to summarize a smart contract in human readable format using OpenAI GPT-3, to create a readme looking at your package.json and a task to ask question to chatGPT when running into errors.
Automatically compiles your Solidity contracts with the OVM compiler.
Integrates Hardhat and ethers.js with Optimism's L2 network.
Check for storage layout changes
Simple plugin to track gas on the transaction level.
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.
Execute commands on deployed contracts on any network using a helpful TUI.
Provide tasks to integrate Circom and SnarkJS
Automatically export contract bytecode on compilation
Hardhat plugin to test scilla contracts. Scilla is Zillqa's programming language to develop smart contracts.
Transfers Link token amount between accounts.
Small hardhat task for debug money transfers 🤝💰
Upload local function selectors to the Ethereum Selector Database
Hardhat Reef plugin for interacting with contracts on the Reef chain
Hardhat plugin for solidity contract verification on Blockscout block explorer.
Handy set of utilities for testing contracts in Hardhat projects
Hardhat plugin to automate the deployment and verification of contracts
Another small hardhat task for printing contract's storage layout 📐
Hardhat plugin to generate customizable smart contracts documentation
Stop Hardhat test execution on demand and print output from completed tests
Hardhat plugin for writing tests in solidity
Hardhat plugin to get compiler outputs of contracts
Hardhat React Plugin to interact with your deployed contracts
Hardhat plugin for Uniswap V3 deployment
Generate 0xWeb classes for contracts to easily communicate with the blockchain.
Integrates Chainlink into Hardhat projects.
Hardhat plugin that allows you to use Jest easily
A Hardhat Typescript plugin to test and interact with Huff contracts
Hardhat plugin to check and lock the storage layout of contracts
A Hardhat plugin for working with on-chain proposals
Hardhat plugin to generate smart contract bindings for Golang
Export deployed contract addresses (multichain) in typescript files.
An updated and working Hardhat plugin to compile the Yul and Yul+ languages into solc compatible artifacts. Works with .yul and .yulp file extensions
Hardhat plugin to sync your compiled contract with Laika
This plugin brings the proxy contract to Hardhat, which allows you to manage the proxy contract in a simple way.
Hardhat TypeScript plugin for Etherspot
Hardhat plugin to get contract storage, gas and code size insights using the compiler ast output
A plugin for submitting code to Sourcify
Integrate MultiBaas into Hardhat's workflow!
Injects hethers into the Hardhat Runtime Environment
Hardhat plugin for cloning verified contracts from any supported network using Etherscan's API.
Hardhat plugin to send an OSX notification when hardhat compilcation fails/succeeds
This plugin allows you to upload compiled hardhat smart contract artifacts to Kriptonio. On kriptonio side new smart contract will be created with attached artifacts, which you can afterward deploy and manage via kriptonio.
Hardhat plugin to compile the Yul and Yul+ languages into solc compatible artifacts. Works with .yul and .yulp file extensions
A framework for building solidity CTF challenges.
Keeps mainnet fork state updated by replaying relevant live txs
Generate and execute on-chain transactions via txn.xyz
Build prompt with Solidity code.
Overrides ENS ownership in hardhat network to allow orchestration superpowers
Quickly add security and operational alerting for your project using Forta: a decentralized monitoring network for Web3 systems.
Output list of available accounts and their balances
Export flat contract on compilation via Hardhat.
Hardhat plugin to allow adding any extra data to your network configuration
Hardhat TypeScript plugin to run a chainlink node and interact with it
Hardhat plugin for integrating with Fireblocks
Hardhat plugin for Uniswap V2 (pancakeswap protocol) testing and deployment. You can use it to test features such as pair creation, liquidity provisioning, and swaps.