Tool

abi-decompiler

abi-decompiler recovers names and argument counts for functions in Ethereum bytecode. The current C++ program brute-forces a 4-byte selector against a word list. clang++ -O3 -std=c++11 -pthread builds sig-bruteforcer from sha3.c and sig-bruteforcer.cpp. It takes the hex selector, a path to function names, a thread count, and a maximum argument count, and prints a matching signature such as a name plus its argument types. Word lists come from deployed contracts, a 100,000-word English list, and the ethersplay signature database. The older Python 2 script is marked deprecated.

Targets: Binary
Category: Native analysis tools
Relationship: Foundation tool
Sources reviewed: 2026-11-07

Stars: 231
Last commit: 2022-06-15
Language: C

GitHub data as of 2026-11-09

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Requirements & limits

A C++11 compiler such as clang++, and a function-name word list.
The README does not name a license.

Cite

BibTeX

@misc{abi-decompiler,
  title = {{abi-decompiler}},
  howpublished = {\url{https://github.com/Decurity/abi-decompiler}},
  url = {https://github.com/Decurity/abi-decompiler},
  urldate = {2026-11-07},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/abi-decompiler/}}
}

Plain text

abi-decompiler. https://github.com/Decurity/abi-decompiler (accessed 2026-11-07). Awesome REA entry: https://awesomerea.org/resources/abi-decompiler/

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Primary sources

README.md GitHub · Decurity/abi-decompiler · Revision ee042e7