# echo094/decode-js

JS混淆代码的AST分析工具 AST analysis tool for obfuscated JS code

Repository: https://github.com/echo094/decode-js
Canonical: https://ross.abutalabs.com/products/decode-js
Language: JavaScript
License: GPL-3.0
License Family: copyleft
Topics: javascript-deobfuscator, obfuscator
Last push: 2026-08-25T19:20:57+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 1450, "days_push": 8, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1054, forks 398 (observed 2026-08-28T04:03:24.129472+00:00)

## What it is
A Node.js CLI tool built on Babel that analyzes and reverses obfuscated JavaScript back into readable source. It supports common obfuscation patterns plus specific targets like so, jjencode, javascript-obfuscator, and JS-Confuser.

## Use cases
- deobfuscate javascript-obfuscator.io output
- reverse so v7 obfuscated js
- decode jjencode strings
- undo JS-Confuser high preset obfuscation
- clean up control flow flattening in minified js
- analyze obfuscated malware javascript via AST

## When to choose
- you have JS obfuscated by a known tool like so or javascript-obfuscator
- you need AST-based deobfuscation rather than regex string tricks
- you want a runnable CLI with per-target decoders

## When to avoid
- you need a library API to embed in your own pipeline
- your obfuscator is custom and not one of the supported targets
- you cannot install isolated-vm native dependencies

## Facets
- artifact type: cli-tool
- maturity: active
- function: parser, developer-tools, reverse-engineering, security
- domain: developer-tools, security, reverse-engineering, web-development
- platform: cli, cross-platform
- tags: javascript-deobfuscator, ast-analysis, babel, obfuscator-io, so, jsconfuser, jjencode, nodejs

## Member repositories
- echo094/decode-js (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:24.129472+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 2026-08-30T06:58:46.835236+00:00, confidence not recorded.
  - readme: https://github.com/echo094/decode-js (fetched 2026-08-28T04:03:24.129472+00:00, sha e871ef8dab12)
- Data as of 2026-08-30T08:39:29.467469+00:00.