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ShowJava Banner v0.1

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)

Get Show Java on Google Play


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.

Compatibility Matrix

Version 3.0

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
Marshmallow - -
Lollipop - -
KitKat - -
Jelly Bean - -

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

Version 2.0

CFR 0.110 JaDX 0.6.1 Fernflower
ICS & Above

Can be downloaded from here.

Contributing to ShowJava

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

Open Source License

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
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 <at>

External Credits

  1. A Big-Huge Thanks to Lee Benfield ( for his awesome CFR - Class File Reader
  2. Panxiaobo ( 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.


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







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