Slither vs Viem
A detailed head-to-head comparison of Slither and Viem — pricing, features, and which one wins for different use cases.
Slither
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 security firms in the industry. It analyzes So…
Full review →Viem
Modern, type-safe TypeScript interface for Ethereum
Viem is a modern, lightweight, TypeScript-first library for interacting with Ethereum — a low-level interface for reading blockchain data, sending transactions, interacting with contracts, and more — …
Full review →Feature Comparison
| Feature | Slither | Viem |
|---|---|---|
| Local Node | ✗ | ✗ |
| Static Analysis | ✓ | — |
| Language | Solidity | TypeScript |
| Test Framework | N/A (analysis tool) | ✗ |
| Plugin Ecosystem | slitherin + custom detectors | ✓ |
| Debugging | ✗ | ✗ |
| Deployment System | N/A | ✗ |
| Open Source | ✓ | ✓ |
| Fuzz Testing | ✗ | — |
| Ci Cd Ready | ✓ | — |
| Mainnet Forking | — | ✗ |
| Coverage Reporting | — | ✗ |
| Gas Reporting | — | ✗ |
Slither Pricing
Slither
Free (Open Source)
Free
- ✓80+ vulnerability detectors
- ✓Custom detector support
- ✓CI/CD integration
- ✓Printer modules
- ✓Slitherin plugin ecosystem
Viem Pricing
Viem
Free (Open Source)
Free
- ✓Type-safe Ethereum interface
- ✓Reads, writes, contract interaction
- ✓Foundation for Wagmi
- ✓Small, fast, modular
- ✓Full ABI type inference
Verdict: Which Should You Choose?
Slither is the better pick if you need 80+ vulnerability detectors catch reentrancy, access control, and overflow issues before deployment. Viem wins when modern, type-safe alternative to ethers/web3.js. Both are production-ready — the right choice depends on your team's workflow and budget.