Hardhat vs Foundry
A detailed head-to-head comparison of Hardhat and Foundry — pricing, features, and which one wins for different use cases.
Hardhat
The most widely used Ethereum development environment with a robust plugin ecosystem
Hardhat is the dominant Ethereum smart contract development framework, used by the majority of professional Solidity teams. It provides a complete toolkit: Hardhat Network (a local Ethereum node with …
Full review →Foundry
Blazing-fast Rust-based Solidity testing framework with built-in fuzzing and invariant testing
Foundry is a Rust-based Ethereum development toolkit built by Paradigm that has become the preferred framework for security-conscious and performance-focused Solidity teams. Its defining advantage ove…
Full review →Feature Comparison
| Feature | Hardhat | Foundry |
|---|---|---|
| Local Node | ✓ | ✓ |
| Mainnet Forking | ✓ | ✓ |
| Language | JavaScript / TypeScript | Solidity (tests) |
| Test Framework | Mocha + Chai | forge-std |
| Plugin Ecosystem | 90+ plugins | Growing (smaller than Hardhat) |
| Debugging | ✓ | ✓ |
| Deployment System | Hardhat Ignition | Forge scripts |
| Open Source | ✓ | ✓ |
| Coverage Reporting | ✓ | — |
| Gas Reporting | ✓ | — |
| Fuzz Testing | — | ✓ |
| Invariant Testing | — | ✓ |
Hardhat Pricing
Hardhat
Free (Open Source)
Free
- ✓Local Ethereum network
- ✓Mainnet forking
- ✓TypeScript support
- ✓90+ plugins
- ✓Hardhat Ignition deployments
- ✓Solidity debugging
Foundry Pricing
Foundry
Free (Open Source)
Free
- ✓forge, cast, anvil, chisel
- ✓Solidity tests
- ✓Built-in fuzzer
- ✓Invariant testing
- ✓Mainnet forking
- ✓Forge Standard Library
Verdict: Which Should You Choose?
Hardhat is the better pick if you need largest plugin ecosystem — 90+ community plugins cover every testing and tooling need. Foundry wins when 5–20x faster test execution than hardhat — critical for large suites and audit pipelines. Both are production-ready — the right choice depends on your team's workflow and budget.