Hardhat vs Slither

Hardhat8.8Visit SSlither7.9Visit

Higher score Hardhat #3 in Smart Contracts Software 8.8/10 Free plan Free plan✓ 2 of 4 features Visit Hardhat

vs

S Slither #8 in Smart Contracts Software 7.9/10 Free plan Free plan✓ 2 of 4 features Visit Slither

• Hardhat fits best

  Solidity teams using a plugin-based development workflow

• Slither fits best

  Teams adding Solidity and Vyper analysis to CI

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Side by side

Feature	Hardhat 8.8/10 Visit ↗	SSlither 7.9/10 Visit ↗
At a glance
Editor score	8.8	7.9
Ranking	#3 in Smart Contracts Software	#8 in Smart Contracts Software
Best for	Solidity teams using a plugin-based development workflow	Teams adding Solidity and Vyper analysis to CI
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Self-hosted	Self-hosted
Support	Community, Docs	Community, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Hardhat 2/4 · Slither 2/4
Security analysis	—	✓ (best)
Visual contract builder	—	—
API or SDK access	✓	✓
Contract templates	✓ (best)	—
Specs
Chain coverage	Multi-chain	Single-chain
Contract languages	Solidity	Multiple
Deployment targets	Both	Not checked yet
Our review
Pros	Compiles Solidity and supports Solidity unit and TypeScript integration tests Includes fuzzing, transaction debugging, and simulated development networks Hardhat Ignition handles deployment; plugins extend tasks and contract verification	Detects vulnerabilities and points to related source-code locations Supports custom Python analyses through its detector API Integrates with CI, Hardhat, and Foundry builds
Cons	Self-hosted and command-line based rather than a visual builder Security analysis is not a listed capability Verification depends on a plugin, adding an extension to the workflow	Focuses on security analysis, not end-to-end contract development Does not include a visual builder or contract templates Support is through community resources and documentation
Our verdict	Hardhat is an open-source development environment for Ethereum smart contracts and decentralized applications. It is aimed at developers who want to work locally in a project through the command line, from solo prototyping to engineering… Read the review →	Slither is a Python-based static analysis framework for Solidity and Vyper smart contracts. It is aimed at developers and teams who want to identify vulnerabilities and error conditions in contract code, inspect contract information, or… Read the review →

Strengths and trade-offs

• Hardhat — where it wins

  • Compiles Solidity and supports Solidity unit and TypeScript integration tests
  • Includes fuzzing, transaction debugging, and simulated development networks
  • Hardhat Ignition handles deployment; plugins extend tasks and contract verification

  Where it doesn't

  • Self-hosted and command-line based rather than a visual builder
  • Security analysis is not a listed capability
  • Verification depends on a plugin, adding an extension to the workflow

• Slither — where it wins

  • Detects vulnerabilities and points to related source-code locations
  • Supports custom Python analyses through its detector API
  • Integrates with CI, Hardhat, and Foundry builds

  Where it doesn't

  • Focuses on security analysis, not end-to-end contract development
  • Does not include a visual builder or contract templates
  • Support is through community resources and documentation

• Hardhat8.8/10 · Free plan

  An open-source, plugin-based Solidity toolkit for teams comfortable working from a local project.

  Visit HardhatFull verdict →
• SSlither7.9/10 · Free plan

  A focused, no-cost option for adding Solidity and Vyper analysis to CI.

  Visit SlitherFull verdict →