JADX

jadx - Dex to Java decompiler

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

Downloads

• latest unstable build:
• release from github:
• release from bintray:

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

• jadx - command line version
• jadx-gui - graphical version

On Windows run .bat files with double-click
Note: ensure you have installed Java 8 64-bit version

Related projects:

• PyJadx - python binding for jadx by @romainthomas

Building jadx 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

Run

Run jadx on itself:

cd build/jadx/
bin/jadx -d out lib/jadx-core-*.jar
# or
bin/jadx-gui lib/jadx-core-*.jar

Usage

jadx[-gui] [options] <input file> (.apk, .dex, .jar, .class, .smali, .zip, .aar, .arsc)
options:
  -d, --output-dir                    - output directory
  -ds, --output-dir-src               - output directory for sources
  -dr, --output-dir-res               - output directory for resources
  -j, --threads-count                 - processing threads count
  -r, --no-res                        - do not decode resources
  -s, --no-src                        - do not decompile source code
  -e, --export-gradle                 - save as android gradle project
  --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
  --no-inline-anonymous               - disable anonymous classes 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-rewrite-cfg                 - force to save deobfuscation map
  --deobf-use-sourcename              - use source file name as class name alias
  --rename-flags                      - what to rename, comma-separated, 'case' for system case sensitivity, 'valid' for java identifiers, 'printable' characters, 'none' or 'all'
  --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)
  -v, --verbose                       - verbose output
  --version                           - print jadx version
  -h, --help                          - print this help
Example:
 jadx -d out classes.dex
 jadx --rename-flags "none" classes.dex
 jadx --rename-flags "valid,printable" classes.dex

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

Troubleshooting

Out of memory error:

• Reduce processing threads count (-j option)
• Increase maximum java heap size:
  • command line (example for linux): JAVA_OPTS="-Xmx4G" jadx -j 1 some.apk
  • edit 'jadx' script (jadx.bat on Windows) and setup bigger heap size: DEFAULT_JVM_OPTS="-Xmx2500M"

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Licensed under the Apache 2.0 License

Copyright 2018 by Skylot