Quickly Reverse Engineer an APK File

October 12, 2016 | Views: 4957

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Have you ever given any thought as to how your Android Application works?




  1. java in your system
  2. apktool
  3. dex2jar
  4. jd-gui


Download all from here


Step 1:

-Change extension of apk to zip

Step 2:

-Open that zip and copy classes.dex in dex2jar folder

-Open CMD in dex2jar folder type command “dex2jar classes.dex” without dual quote

-It will convert classes.dex into classes.jar

Step 3:

-It’s time to show java code of your application

-Open jd-gui.exe in this goto File -> Open file and select classes.jar

Now,  it’s time to get Images and Design

Step 4:

-change extension .zip to .apk and copy it into apktool folder

-open Command Prompt there and type command for extract your apk “java -jar apktool.jar d -s AppName.apk”

-After changing in your application open Command Prompt there and type command for build again apk”java -jar apktool.jar b AppFolder”



Thank you

Watch this video to answer any additional questions: https://www.youtube.com/watch?v=ZyNa-n2dM4k

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  1. GURU TEJA, I believe it is.

  2. Is this online service does the same operation as you had done above??


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