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Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Blazing fast compilation and execution
Biggest con
Primarily command-line based, which might have a learning curve for some
TL;DR - Foundry
- A command-line toolkit for Ethereum smart contract development.
- Includes tools for building, testing, deploying, and interacting with contracts.
- Offers ultra-fast compilation and testing against real chain states.
Pricing: Free forever
Best for: Individuals & startups
What is Foundry?
Foundry is a comprehensive, command-line-based development toolkit designed for building, testing, and deploying smart contracts on the Ethereum blockchain. It provides a suite of tools including Forge for contract development, Anvil for a local development node, and Cast for interacting with on-chain applications. The toolkit is built for speed, offering ultra-fast compilation and the ability to test contracts against real-world chain states.
This toolkit is ideal for Ethereum smart contract developers looking for a performant and efficient environment. It streamlines the entire development lifecycle, from initializing projects and running tests to deploying contracts and interacting with various blockchain networks. Its focus on speed and robust testing capabilities helps developers create more reliable and secure smart contracts.
Foundry is open-source and community-driven, encouraging contributions and providing support through channels like Telegram and GitHub. It aims to be the 'Swiss Army knife' for anyone working with Ethereum smart contracts.
Pros & Cons
Pros
- Blazing fast compilation and execution
- Comprehensive suite of tools for the entire dev lifecycle
- Ability to test against real chain state for robust testing
- Open-source and community-driven with active development
- Easy to install and get started
Cons
- Primarily command-line based, which might have a learning curve for some
- Requires familiarity with Ethereum development concepts
Preview
Key Features
Forge: Build, test, debug, deploy, and verify smart contractsAnvil: Run a local Ethereum development node with JSON-RPC complianceCast: Interact with on-chain applications from the command lineUltra-fast compilation with dynamic_test_linkingTest contracts against real-world chain stateFork mainnet for local developmentLoad and dump state for Anvil nodesCall contract functions and send transactions via command line
Pricing Plans
Foundry
Free
- Blazing fast smart contract development toolkit
- Ultra-fast compilation
- Performant local node
- Interact with applications
- Forge: build, test, debug, deploy and verify smart contracts
- Anvil: local development node (Ethereum JSON-RPC spec)
- Cast: interact with onchain applications from the command line
Reviews
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Foundry FAQ
How does Foundry facilitate robust testing for smart contracts?
Foundry enables robust testing by allowing developers to test contracts directly against real-world chain states. This capability, combined with its ultra-fast compilation, helps ensure the reliability and security of smart contracts before deployment.
Which teams would benefit most from using Foundry?
Teams of Ethereum smart contract developers looking for a performant and efficient development environment would benefit most from Foundry. It is designed to streamline the entire development lifecycle, from project initialization to deployment and interaction with blockchain networks.
How is Foundry's approach to development different from Tenderly?
Foundry provides a comprehensive, command-line-based development toolkit for building, testing, and deploying smart contracts on Ethereum. It emphasizes speed with ultra-fast compilation and the ability to test against real chain states.
What kind of learning curve should new users expect with Foundry?
New users should expect a learning curve primarily because Foundry is command-line based. Additionally, familiarity with Ethereum development concepts is required to effectively utilize its features.
Does Foundry include a free tier for developers?
Foundry is entirely free to use, as it is an open-source and community-driven project. There are no paid plans required to access its full suite of development tools.
How does Foundry support the full smart contract development lifecycle?
Foundry supports the full smart contract development lifecycle through a suite of tools, including Forge for contract development, Anvil for a local development node, and Cast for on-chain interaction. This streamlines processes from project initialization and testing to deployment.
Can Foundry be used to interact with various blockchain networks?
Yes, Foundry can be used to interact with various blockchain networks through its Cast tool. This allows developers to deploy contracts and manage applications across different Ethereum-compatible environments.
Source: getfoundry.sh