nomiclabs/hardhat

Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.

8,505

stars

19,759

commits

TypeScript

primary language

Sep 9, 2026

updated

hardhat.org
blockchain
dapps
debugging
ethereum
javascript
smart-contracts
solidity
task-runner
tooling
typescript
Browse cluster: Ethereum Smart Contract Development

README

Hardhat is an Ethereum development environment for professionals. It facilitates performing frequent tasks, such as running tests, automatically checking code for mistakes or interacting with smart contracts.

Built by the Nomic Foundation for the Ethereum community.


💡 This is the README for Hardhat 3, the new major version of Hardhat. For the previous version (v2), see this branch instead.


Getting started

To install Hardhat and initialize a new project, run the following command in an empty directory:

npx hardhat --init

This will take you through an interactive setup process to get started.

Learn more

To learn more about Hardhat, check out the documentation.

Contributing

Contributions are always welcome! Feel free to open any issue or send a pull request.

Go to CONTRIBUTING.md to learn about how to set up Hardhat's development environment.

Contributors

(top 30 of 396)

alcuadrado

5,065 commits

fvictorio

3,549 commits

kanej

2,151 commits

nomiclabs/hardhat

Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.

8,505

stars

19,759

commits

TypeScript

primary language

Sep 9, 2026

updated

hardhat.org
blockchain
dapps
debugging
ethereum
javascript
smart-contracts
solidity
task-runner
tooling
typescript
Browse cluster: Ethereum Smart Contract Development

README

Hardhat is an Ethereum development environment for professionals. It facilitates performing frequent tasks, such as running tests, automatically checking code for mistakes or interacting with smart contracts.

Built by the Nomic Foundation for the Ethereum community.


💡 This is the README for Hardhat 3, the new major version of Hardhat. For the previous version (v2), see this branch instead.


Getting started

To install Hardhat and initialize a new project, run the following command in an empty directory:

npx hardhat --init

This will take you through an interactive setup process to get started.

Learn more

To learn more about Hardhat, check out the documentation.

Contributing

Contributions are always welcome! Feel free to open any issue or send a pull request.

Go to CONTRIBUTING.md to learn about how to set up Hardhat's development environment.

Contributors

(top 30 of 396)

alcuadrado

5,065 commits

fvictorio

3,549 commits

kanej

2,151 commits

Languages

TypeScript

96.1%

Solidity

1.9%

JavaScript

1.3%