# Capstone.js

> Capstone.js is a JavaScript and WebAssembly port of the Capstone disassembler, built with Emscripten. The README shows it decoding machine-code bytes into instructions from a browser or another JavaScript environment.

- Type: Tool
- Targets: Binary
- Category: Binary analysis libraries
- Relationship: Foundation tool
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/AlexAltea/capstone.js>
- Primary source: <https://github.com/AlexAltea/capstone.js/blob/75da2ab549729c50bc49842d07984c4ff2e33deb/README.md>
- Catalog page: <https://awesomerea.org/resources/capstone-js/>
- Record JSON: <https://awesomerea.org/resources/capstone-js/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/capstone-js/index.md)

## Requirements & limits

- A JavaScript environment with WebAssembly and BigInt support.
- Install with npm as @alexaltea/capstone-js, or include capstone.js with a script tag.
- Building from source requires a recursive clone. License: BSD-3-Clause.

## Primary sources

1. <https://github.com/AlexAltea/capstone.js/blob/75da2ab549729c50bc49842d07984c4ff2e33deb/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.