Java decompiler and android

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An APK (android application), JAR & Dex decompiler for android.

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niranjan94/show-java

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README.md

An APK (android application), JAR & Dex decompiler for android.

The current GitHub master branch may be ahead of the Play Store version (and could be unstable/incomplete/buggy at some places)

This is a Decompiler that extracts the source code of an Android application (including XML files and image assets), JAR Packages and dex files. Works directly from your android device.

• Select either CFR 0.140, JaDX 0.9.0 or FernFlower a0a8f0a (analytical decompiler) to use as the decompiler.
• Runs directly on an android device (4.1.x and above).
• Select apk/jar/dex from sdcard (or) from a list of installed applications.
• Decompiles android resources (layouts, Drawables, Menus, AndroidManifest, image assets, values, etc).
• Easy to use source navigator with built-in media & code viewer.
• Displays code in a clean-syntax-highlighted form with zoom & line-wrap.
• The decompiled source can easily be copied from the sdcard (source is stored in show-java folder in the sdcard).
• Share the decompiled source easily with the built in archive + share mechanism.

JaDX and Fernflower use newer Java features such as some types of lambda’s which are not available on pre-N versions of Android.

CFR 0.140	JaDX 0.9.0	Fernflower
Oreo	✅	✅	✅
Nougat	✅	✅	✅
Marshmallow	✅	—	—
Lollipop	✅	—	—
KitKat	✅	—	—
Jelly Bean	✅	—	—

Available from the Play Store on all Android devices running Jelly Bean and above.

Head over here to know more about how to contribute, report bugs and request feature additions.

Unless explicitly stated otherwise all files in this repository are licensed under the GNU General Public License v3.0. All projects must properly attribute The Original Source.

Show Java - A java/apk decompiler for android Copyright (C) 2019 Niranjan Rajendran This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . 

An unmodified copy of the above license text must be included in all forks.

To obtain the software under a different license, please contact Niranjan Rajendran at me niranjan.io .

1. A Big-Huge Thanks to Lee Benfield (lee@benf.org) for his awesome CFR — Class File Reader
2. Panxiaobo (pxb1988@gmail.com) for dex2jar.
3. Hsiafan for apk-parser.
4. Ben Gruver for dexlib2.
5. skylot for JaDX.
6. JetBrains for FernFlower analytical decompiler.

Android, Google Play and the Google Play logo are trademarks of Google LLC.

About

An APK (android application), JAR & Dex decompiler for android.

Источник

JADX — Dex to Java Decompiler¶

On Windows run .bat files with double-click\ Note: ensure you have installed Java 11 or later 64-bit version. For Windows, you can download it from oracle.com (select x64 Installer).

Installation¶

jadx[-gui] [command] [options] (.apk, .dex, .jar, .class, .smali, .zip, .aar, .arsc, .aab) commands (use ' --help' for command options): plugins - manage jadx plugins options: -d, --output-dir - output directory 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, full name, raw or alias --single-class-output - file or dir for write if 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 -m, --decompilation-mode - code output mode: 'auto' - trying best options (default) 'restructure' - restore code structure (normal java code) 'simple' - simplified instructions (linear, with goto's) 'fallback' - raw instructions without modifications --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 parsing and processing --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-move-inner-classes - disable move inner classes into parent --no-inline-kotlin-lambda - disable inline for Kotlin lambdas --no-finally - don't extract finally block --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 --mappings-path - deobfuscation mappings file or directory. Allowed formats: Tiny and Tiny v2 (both '.tiny'), Enigma (.mapping) or Enigma directory --mappings-mode - set mode for handling the deobfuscation mapping file: 'read' - just read, user can always save manually (default) 'read-and-autosave-every-change' - read and autosave after every change 'read-and-autosave-before-closing' - read and autosave before exiting the app or closing the project 'ignore' - don't read or save (can be used to skip loading mapping files referenced in the project file) --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 mappings file used for JADX auto-generated names (in the JOBF file format), default: same dir and name as input file with '.jobf' extension --deobf-cfg-file-mode - set mode for handling the JADX auto-generated names' deobfuscation map file: 'read' - read if found, don't save (default) 'read-or-save' - read if found, save otherwise (don't overwrite) 'overwrite' - don't read, always save 'ignore' - don't read and don't save --deobf-use-sourcename - use source file name as class name alias --deobf-res-name-source - better name source for resources: 'auto' - automatically select best name (default) 'resources' - use resources names 'code' - use R class fields names --use-kotlin-methods-for-var-names - use kotlin intrinsic methods to rename variables, values: disable, apply, apply-and-hide, default: apply --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) --integer-format - how integers are displayed: 'auto' - automatically select (default) 'decimal' - use decimal 'hexadecimal' - use hexadecimal --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 - set '--decompilation-mode' to 'fallback' (deprecated) --use-dx - use dx/d8 to convert java bytecode --comments-level - set code comments level, values: error, warn, info, debug, user-only, none, default: info --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 Plugin options (-P=): 1) dex-input: Load .dex and .apk files - dex-input.verify-checksum - verify dex file checksum before load, values: [yes, no], default: yes 2) java-convert: Convert .class, .jar and .aar files to dex - java-convert.mode - convert mode, values: [dx, d8, both], default: both - java-convert.d8-desugar - use desugar in d8, values: [yes, no], default: no 3) kotlin-metadata: Use kotlin.Metadata annotation for code generation - kotlin-metadata.class-alias - rename class alias, values: [yes, no], default: yes - kotlin-metadata.method-args - rename function arguments, values: [yes, no], default: yes - kotlin-metadata.fields - rename fields, values: [yes, no], default: yes - kotlin-metadata.companion - rename companion object, values: [yes, no], default: yes - kotlin-metadata.data-class - add data class modifier, values: [yes, no], default: yes - kotlin-metadata.to-string - rename fields using toString, values: [yes, no], default: yes - kotlin-metadata.getters - rename simple getters to field names, values: [yes, no], default: yes 4) rename-mappings: various mappings support - rename-mappings.format - mapping format, values: [auto, TINY, TINY_2, ENIGMA, ENIGMA_DIR, MCP, SRG, TSRG, TSRG2, PROGUARD], default: auto - rename-mappings.invert - invert mapping, values: [yes, no], default: no 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 jadx -Pdex-input.verify-checksum=no app.apk 

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

Use jadx as a Library¶

You can use jadx in your java projects, check details on wiki page

Источник