# Jon-Becker/heimdall-rs

Heimdall is an advanced EVM smart contract toolkit specializing in bytecode analysis and extracting information from unverified contracts.

Repository: https://github.com/Jon-Becker/heimdall-rs
Canonical: https://ross.abutalabs.com/products/heimdall-rs
Homepage: http://heimdall.rs
Language: Rust
License: MIT
License Family: permissive
Topics: ethereum, decompiler, eth, evm, toolkit, rust, decoder, disassembler, cfg, security, solidity, yul
Last push: 2026-08-25T16:20:39+00:00

## Health v2 (maintenance only)
Score: 89/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 69, longevity 100
- inputs: {"age_days": 1551, "days_push": 8, "days_rel": 126, "gap_med": 57, "n_releases_24m": 8}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1602, forks 170 (observed 2026-08-28T04:05:09.703718+00:00)

## What it is
Heimdall is a Rust-based EVM smart contract toolkit for bytecode analysis, decompilation, disassembly, control flow graph generation, storage dumping, and calldata/trace decoding. It specializes in extracting information from unverified Ethereum contracts.

## Use cases
- decompile unverified ethereum smart contracts
- disassemble evm bytecode
- generate control flow graphs for solidity contracts
- decode raw transaction calldata
- dump smart contract storage layout
- analyze evm transaction traces

## When to choose
- you need to reverse-engineer unverified on-chain contracts
- you want fast, accurate evm bytecode analysis from the command line
- you need to decode raw ethereum transactions or traces

## When to avoid
- you need a high-level solidity compiler or development framework
- you only need a block explorer or wallet
- you work on non-EVM blockchains

## Facets
- artifact type: cli-tool
- maturity: active
- function: reverse-engineering, parser, security, developer-tools
- domain: blockchain, security, reverse-engineering, developer-tools
- platform: windows, rust, cli
- tags: evm, ethereum, smart-contracts, decompiler, disassembler, bytecode-analysis, solidity, calldata-decoding, control-flow-graph, linux, macos

## Member repositories
- Jon-Becker/heimdall-rs (main) score 89

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:09.703718+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:52:34.281640+00:00, confidence not recorded.
  - readme: https://github.com/Jon-Becker/heimdall-rs (fetched 2026-08-28T04:05:09.703718+00:00, sha d209ebb4c376)
  - homepage: http://heimdall.rs (fetched 2026-08-29T11:24:10.577673+00:00, sha 13da8151f597)
- Data as of 2026-08-30T08:39:29.467469+00:00.