How to Modify or Hack android APK files using APKTOOLS [No Root] [Tutorial]

Want to change the car driver of Hill climb racing game to yours? Or want to change the Jetpack style in Jetpack Joyride? I guarantee that after fully reading this post, you will be able to customize any game or App, if you have a little brain, an idea and some patience. Just read below.

Tools Required

  • APKTool to decompile and compile APK files
  • SignApk to sign the recompiled APK files
I have uploaded the above files into a ZIP file. You can download it from HERE
Thanks to those guys who made APKTool and SignAPK. Actually I referred to Xda forum for the above tools. After downloading the files, follow the steps below.


  1. Extract the files and open command prompt in the extracted folder. There will be four folders.
    files , compiled, decompiled, and signed.
    Files  > Place your working APKs here
    Decompiled  > The files after Decompiling your APK will go here. You can edit the files after      decompiling.
    Compiled  > After editing and recompiling, the unsigned APK file goes here. You cant use it before signing.
    Signed  > Finished APK, after signing goes here. You can install the APK after signing.
  2. Place the working APK into the Files folder and type the following command in the command prompt:
    (Here I'm taking hill climb racing as an example. You can take any game)
    apktool d files/hill.apk decompiled/hill

     The command is very simple. It says apktool to decompile the file which is situated in files/hill.apk and save the decompiled files to decompiled/hill folder (d is the command for decompile)
  3. Now, just go through the files in the decompiled folder. It is very easy to mod. Here,I want to change the driver head of Hill Climb racing. So, in the assets folder., there is an driver-head.png file. It is obvious that this is the driver head image file. Now, edit the image using Photoshop (or anything similar) and change the head. Here, I have downloaded a photo from Google (dont know whose head is that! maybe an actress!!) replaced the head with this one and that's enough!. Be careful, when doing this, the photo should be in correct position. I mean, The Head should be above the neck and not should be in the AIR! I'm just doing this for this tutorial. If you want, you can change cars, tires etc. Also try editing the manifest file and other folders. In manifest file, you can edit the App name, version, etc.

    Now time to recompile.

  4. For recompiling, open command prompt and type the following command

    apktool b decompiled/hill compiled/hill.apk

     I think there is no need of an explanation here. Command b is for Binding, I think.
  5. Now the final step. To sign the APK file, you can use the SignApk (Provided in the Zip file). Type the following command

    java -jar signapk.jar certificate.pem key.pk8 compiled/hill.apk signed/hill.apk

  6. Now transfer it to the Phone and Test it. Enjoyyy!
AAfter decompiling, you get the java files as .smali files. It is very difficult to edit it. If you try, you can do much more.

Here is the screenshot of what I have done

If you want, you can download the APK which I have modified (as in the screenshot) below


In games like Temple Run, they uses some applications like Unity3D to design such 3D games. I dont actually know how to edit those. If anybody know it, please leave a comment below and share your knowledge...

If you have any doubts or suggestions, comment below.


  1. Leave comments if there is any doubts, suggestions or anything

  2. Please help me to hack teen patti

  3. can you help me hacking digimon unlimited on android ?

  4. InternetTalksBullshitMarch 26, 2014 at 8:33 AM

    So whats the password ???

  5. wat abt ANDROID ??????

  6. file is not found on the link

  7. please someone help!! every search i do it shows 0 items found! i tryed in different games but still 0 items found, i tryed to hack Pou, i had 402 coins then i enter 402 and click search and i selected Auto indentify and i get 0 items found! can someone help me??

  8. please help. error is occurred as image below...

  9. Replies
    1. No, I have not installed JRE. Tell me all the requirements and download liks if you have. Sorry for late response. Thanks in advance.

    2. Its better you install jdk itself. You can download it from oracle official site

  10. how to hack kings empire plz help

    1. Follow the tutoral. what's the problem?

  11. teen patti is flash game so it cant be hacked or may be but it will be very tough to hack


    what happen there can you please tell me ?

  13. great job yaar .....

  14. can we hack money of any game using apktool

  15. please..please...please. ...CAN YOU HACK CLASH OF CLANS??? PLZ PLZ PLZ tell me how to hack it.....thanx in advance. ...:-)

  16. Please plz plz can you hack CLASH OF CLANS??? PLz ....tell me if you can hack. .....:-)

  17. i am getting 'java' is not recognized as an internal or external command operable program or batch file in my command prompt plzzz help me

  18. Tried this, doesnt work. When i double click the command prompt as per your instructions a window flashes up for a milli-second and vanishes, no doubt just installed a virus....... time to format my hard drive.

  19. This is what i get when trying the first step...

    'Java' is not recognized as an internal or external command

  20. The app can't run it says 'Unfortunately --app name-- it stopped'

  21. plzz hlp me it is giving the error that java is not recognised as internal or external command

  22. eeerm... I want to try this on jet pack joy ride, can I use it to make unlimited coins.?

    <a href=">how to download from google play with your pc</a>

  23. it says 'java' is not recognized as an internal or external commend ,operable program or batch file
    what do i do?

  24. How can u you modify values? Such as in game currency (I.E. Donuts in Tapped out, gold coin in puzzle quest etc.)

  25. you can use notepad++ for editing smali formats :)

  26. hey tell me how to modify games data like coin gold etc
    and how to setup massage on startup