A tool for reverse engineering 3rd party, closed, binary Android apps. It can decode resources to nearly original form and rebuild them after making some modifications; it makes possible to debug smali code step by step. Also it makes working with an app easier because of project-like file structure and automation of some repetitive tasks like building apk, etc.

It is NOT intended for piracy and other non-legal uses. It could be used for localizing, adding some features or support for custom platforms, analyzing applications and much more.


  • Disassembling resources to nearly original form (including resources.arsc, classes.dex, 9.png. and XMLs)
  • Rebuilding decoded resources back to binary APK/JAR
  • Organizing and handling APKs that depend on framework resources
  • Smali Debugging
  • Helping with repetitive tasks


APKTool on AndroidTamer



  • To decompile an APK: apktool d file.apk
  • To decompile an APK and put it under a specific folder name: apktool d file.apk folder
  • To compile the smali code to APK: apktool b folder