This document provides instructions for decompiling an APK file using various tools to extract an app's XML files, Java source code, and resources. It explains how to use APKTool to convert the APK into XML files, Dex2jar to convert Android bytecode into Java bytecode, and JD-GUI to view and save the Java source code.

1. How to decompile APK
Prepared by: Sokngim Sa

2. Content
1. Tools
2. Apktool to get xml File
3. Dex2jar to get java file
4. Jd-gui to show and save source code in java

3. 1. Tools
1. APK Tool
2. Dex2jar
3. JD-GUI
4. Your APK file to decompile

4. 2. Apktool to get xml File
• Copy YOUR APK to paste in Folder ApkTool
• Start cmd command in ApkTool Folder
• java –jar apktool.jar d –s APK.apk
• enter

5. The result

6. 3. Dex2jar to get java file
• Copy YOUR APK to paste in Folder dex2jar Folder
• Rename from File APK.apk to APK.zip
• Extract the zip file
• Copy the file classes.dex out to the Folder dex2jar Folder
• Start the command in dex2jar Folder
• d2j-dex2jar.bat classes.dex //to change dex file to jar file

7. The result

8. 4. Jd-gui to show and save source code in java
• Goto Folder jd-gui and run jd-gui.exe file
• File  Open File  Go to the directory dex2jar  select the
file that you create  Open

9. Jd-gui to save source code in java
• File  Save All Source Browse directory to store that file