lelinhtinh/de4js

Health v2 · maintenance only

Flags: archived

Adoption not part of the score

1580 stars · 361 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

de4js is a web-based JavaScript deobfuscator and unpacker that transforms obfuscated code (Eval, Array, JSFuck, JJencode, AAencode, Packer, Obfuscator.IO, and more) back into readable source. It works fully offline, includes a code beautifier with syntax highlighting, and can be self-hosted via Docker or Jekyll.

Use cases

• deobfuscate obfuscated javascript code
• unpack jsfuck or jjencode encoded scripts
• decode obfuscator.io output back to readable js
• analyze malicious javascript from a url or local file
• beautify and format minified javascript
• self-host an offline javascript deobfuscation tool

When to choose

• you need to reverse obfuscated or packed JavaScript into readable source
• you want an offline-capable tool that never sends code to a server
• you encounter common obfuscation schemes like JSFuck, JJencode, AAencode, or Packer
• you want a self-hosted web UI with beautifying and syntax highlighting

When to avoid

• you need deobfuscation of heavily modern ES6+ obfuscation beyond what Obfuscator.IO unpacking covers
• you want a command-line or programmatic API rather than a browser interface
• you need the 'Unreadable' JS Nice-powered renaming without installing the helper UserScript
• you require actively maintained tooling - the latest release dates to 2021

Facets

application · maturity maintenance

reverse-engineering security developer-tools parser security reverse-engineering web-development developer-tools browser self-hosted cross-platform deobfuscator unpacker javascript jsfuck obfuscator-io offline-tool code-beautifier static-analysis web-server docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="lelinhtinh/de4js")