JavaScript Deobfuscator and Unpacker
The Unreadable option is disabled by default, because it uses data from JS Nice. This cannot be done with JavaScript. You need to install UserScript de4js_helper.user.js to enable it.
Install one of the following links:
* de4js helper doesn't work offline.
- Works offline.
- Source code beautifier / syntax highlighter.
- Makes obfuscated code readable.
- Performance unpackers:
- Eval, e.g. Packer, WiseLoop
- Array, e.g. Javascript Obfuscator, Free JS Obfuscator
- _Number (not correct name)
- Packer
- Javascript Obfuscator
- Free JS Obfuscator
- Obfuscator.IO (but not all cases)
- My Obfuscate
- URL encode, e.g. bookmarklet
- JSFuck
- JJencode
- AAencode
- WiseLoop
docker-compose up
Preview de4js in your web browser at http://localhost:4000/de4js/
docker exec -it de4js_app bash
bundle exec jekyll build
git clone https://github.com/lelinhtinh/de4js.git
cd de4js
If you don't have Ruby installed, install Ruby 2.1.0 or higher.
Fix missing libraries on Ubuntu:
sudo apt install ruby-dev zlib1g-dev
Install Bundler:
gem install bundler
Install Jekyll and other dependencies from the GitHub Pages gem:
bundle install
Fix EventMachine C extension not loading on Windows 10:
gem uninstall eventmachine
gem install eventmachine --platform ruby
Install Workbox CLI:
npm install workbox-cli --global
npm start
Or, with livereload:
npm run watch
Preview de4js in your web browser at http://localhost:4000/de4js/
npm run build
- IlluminateJS: A static JavaScript deobfuscator.
- JStillery: Advanced JavaScript Deobfuscation via Partial Evaluation.
- Akamai Deobfuscator: A tool to help you deobfuscate Akamai scripts.
- Nice2Predict: Learning framework for program property prediction.
- Javascript deobfuscation AMA: General questions about deobfuscating JavaScript.
- Deobfuscator IO: A (incomplete) deobfuscator for scripts obfuscated with obfuscator.io (Archived).
- JavaScript Deobfuscator: Deobfuscation tool for obfuscated JavaScript using obfuscator.io.
- Prepack: A JavaScript bundle optimizer.
- JS Deobfuscate: JavaScript deobfuscate for JSjiami, Sojson, ...
- JSDec: Online JavaScript decoder. Supported sojson v4/Premium/v5 and more (No longer update).
- Synchrony: Kavascript-obfuscator cleaner & deobfuscator.
* Obfuscator.IO is always up to date. The automatic deobfuscation tools (including this project) will usually not match its latest version. But that doesn't mean it's a safe tool to secure your source code.