Smart contract development frameworks, testing environments, simulators, and debugging tools. Covers everything from writing and testing Solidity to monitoring live production transactions.
All tools independently reviewed. Updated 2026. Affiliate links marked *.
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: Hard…
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 So…
Smart contract observability platform for simulation, debugging, monitoring, and alerting in production
Tenderly is the observability and developer tooling platform for smart contracts, used by teams at Uniswap, Aave, Compound, Synthetix, and 3,000+ other projects…
The official Ethereum browser-based IDE — write, compile, deploy, and debug Solidity in your browser
Remix IDE is the official browser-based development environment for Solidity, maintained by the Ethereum Foundation and accessible at remix.ethereum.org without…
Trail of Bits' open-source static analysis framework for Solidity — catches vulnerabilities before auditors do
Slither is the most widely used static analysis framework for Solidity smart contracts, built and maintained by Trail of Bits — one of the most respected securi…