Skip to main content
Security & testing

Walnut

Debugging & inspection

Visit website (opens in a new tab)Walnut on GitHub (opens in a new tab)

See next

forky

About Walnut

Web-based transaction debugger and simulator for the EVM. Open-source and self-hostable. Inspect variable states at every step, simulate transactions before deploying, and profile gas usage. Supports any RPC provider.

Tags

  • Debugging tools
  • Developer experience
  • Gas optimization
  • Visualization

Repositorywalnuthq

Info

Type
Debugging & inspection
GitHub stars
61

Similar tools

Semgrep (smart-contracts rules)

Semgrep (smart-contracts rules)

Semgrep is a pattern-based static analysis tool with rulesets for Solidity vulnerabilities. Builders run those rules over a codebase to catch known vulnerable patterns and style issues before review.

heimdall-rs

heimdall-rs is a Rust EVM toolkit that disassembles bytecode, decompiles contracts, generates control flow graphs, and decodes calldata and traces. Builders reach for it when they need to understand a contract that has no published source.

sol2uml

sol2uml generates UML class and storage-layout diagrams from Solidity source or from verified contracts. Builders run it to see contract relationships and how state variables are packed into storage.