jadx

Dex to Java decompiler

Code Quality Rank: L2

Programming language: Java

License: Apache License 2.0

Tags: Security & Decompiler    

Latest version: v1.2.0

README

JADX

jadx - Dex to Java decompiler

Command line and GUI tools for producing Java source code from Android Dex and Apk files

Main features:

• decompile Dalvik bytecode to java classes from APK, dex, aar, aab and zip files
• decode AndroidManifest.xml and other resources from resources.arsc
• deobfuscator included

jadx-gui features:

• view decompiled code with highlighted syntax
• jump to declaration
• find usage
• full text search

Upcoming unstable features:

• smali debugger (thanks to @LBJ-the-GOAT), check wiki page for setup and usage

See these features in action here: jadx-gui features overview

Download

• release from github:
• latest unstable build

After download unpack zip file go to bin directory and run:

• jadx - command line version
• jadx-gui - UI version

On Windows run .bat files with double-click\ Note: ensure you have installed Java 8 or later 64-bit version. For windows you can download it from adoptopenjdk.net (select "Install JRE").

Install

1. Arch linux bash sudo pacman -S jadx
2. macOS bash brew install jadx

Build from source

JDK 8 or higher must be installed:

git clone https://github.com/skylot/jadx.git
cd jadx
./gradlew dist

(on Windows, use gradlew.bat instead of ./gradlew)

Scripts for run jadx will be placed in build/jadx/bin and also packed to build/jadx-<version>.zip

Usage

jadx[-gui] [options] <input files> (.apk, .dex, .jar, .class, .smali, .zip, .aar, .arsc, .aab)
options:
  -d, --output-dir                    - output directory
  -ds, --output-dir-src               - output directory for sources
  -dr, --output-dir-res               - output directory for resources
  -r, --no-res                        - do not decode resources
  -s, --no-src                        - do not decompile source code
  --single-class                      - decompile a single class
  --output-format                     - can be 'java' or 'json', default: java
  -e, --export-gradle                 - save as android gradle project
  -j, --threads-count                 - processing threads count, default: 4
  --show-bad-code                     - show inconsistent code (incorrectly decompiled)
  --no-imports                        - disable use of imports, always write entire package name
  --no-debug-info                     - disable debug info
  --add-debug-lines                   - add comments with debug line numbers if available
  --no-inline-anonymous               - disable anonymous classes inline
  --no-inline-methods                 - disable methods inline
  --no-replace-consts                 - don't replace constant value with matching constant field
  --escape-unicode                    - escape non latin characters in strings (with \u)
  --respect-bytecode-access-modifiers - don't change original access modifiers
  --deobf                             - activate deobfuscation
  --deobf-min                         - min length of name, renamed if shorter, default: 3
  --deobf-max                         - max length of name, renamed if longer, default: 64
  --deobf-cfg-file                    - deobfuscation map file, default: same dir and name as input file with '.jobf' extension
  --deobf-rewrite-cfg                 - force to ignore and overwrite deobfuscation map file
  --deobf-use-sourcename              - use source file name as class name alias
  --deobf-parse-kotlin-metadata       - parse kotlin metadata to class and package names
  --rename-flags                      - fix options (comma-separated list of):
                                         'case' - fix case sensitivity issues (according to --fs-case-sensitive option),
                                         'valid' - rename java identifiers to make them valid,
                                         'printable' - remove non-printable chars from identifiers,
                                        or single 'none' - to disable all renames
                                        or single 'all' - to enable all (default)
  --fs-case-sensitive                 - treat filesystem as case sensitive, false by default
  --cfg                               - save methods control flow graph to dot file
  --raw-cfg                           - save methods control flow graph (use raw instructions)
  -f, --fallback                      - make simple dump (using goto instead of 'if', 'for', etc)
  --log-level                         - set log level, values: QUIET, PROGRESS, ERROR, WARN, INFO, DEBUG, default: PROGRESS
  -v, --verbose                       - verbose output (set --log-level to DEBUG)
  -q, --quiet                         - turn off output (set --log-level to QUIET)
  --version                           - print jadx version
  -h, --help                          - print this help
Examples:
  jadx -d out classes.dex
  jadx --rename-flags "none" classes.dex
  jadx --rename-flags "valid, printable" classes.dex
  jadx --log-level ERROR app.apk

These options also worked on jadx-gui running from command line and override options from preferences dialog

Troubleshooting

Please check wiki page Troubleshooting Q&A

Contributing

To support this project you can:

• Post thoughts about new features/optimizations that important to you
• Submit decompilation issues, please read before proceed: [Open issue](CONTRIBUTING.md#Open-Issue)
• Open pull request, please follow these rules: [Pull Request Process](CONTRIBUTING.md#Pull-Request-Process)

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Licensed under the Apache 2.0 License