10.3k
Foundry
Foundry is a blazing fast, portable and modular toolkit for Ethereum application development, written in Rust.
👨💻
Development⛓️
Web3 & Blockchain🛠️
Tools🦀
Rust
3 Open Source Alternatives to Hardhat
Looking for an open-source alternative to Hardhat? Below are 3 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
540
Tenderly-cli
A comprehensive CLI tool for smart contract error tracking, monitoring, and alerting in blockchain environments.
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CLI🔎
Monitoring🔒
Security⛓️
Web3 & Blockchain
321
Smock
The Solidity mocking library enabling developers to easily mock smart contracts for Ethereum development.
👨💻
Development🧪
Testing⛓️
Web3 & Blockchain
Frequently asked questions
What are the best open-source alternatives to Hardhat?
The top picks from this list are Foundry, Tenderly-cli, Smock — all maintained, free to use, and self-hostable.
Are these alternatives to Hardhat free?
Yes. Every tool listed here is open source and free to use. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Hardhat?
Most of the alternatives listed are self-hostable. Check each tool's page for hosting details, system requirements, and licensing terms.
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