Is it possible to decompile an Android apk file

Question

Are the users able to convert the apk file of my application back to the actual code  If they do - is there any way to prevent this

User · Answer

I may also add  that nowadays it is possible to decompile Android application online  no software needed   Here are 2 options for you    http   www decompileandroid com   http   www javadecompilers com apk

User · Answer

Yes  there are tons of software available to decompile a  apk file   Recently  I had compiled an ultimate list of 47 best APK decompilers on my website  I arranged them into 4 different sections    Open Source APK Decompilers Online APK Decompilers APK Decompiler for Windows  Mac or Linux APK Decompiler Apps   I hope this collection will be helpful to you   Link  https   www edopedia com blog best-apk-decompilers

User · Answer

Download this jadx tool https   sourceforge net projects jadx files   Unzip it and than in lib folder run jadx-gui-0 6 1 jar file now browse your apk file  It s done  Automatically apk will decompile and save it by pressing save button  Hope it will work for you  Thanks

User · Answer

Are the users able to convert the apk file of my application back to the actual code    yes   People can use various tools to    analysis  your apk decode hack your apk   using FDex2 to dump out dex file   then using dex2jar to convert to jar   then using jadx to conver to java source code         If they do - is there any way to prevent this    yes  Several  can combined  ways to prevent  certain degree  this    low level  code obfuscation   using Android ProGuard  high level  use android harden scenario   such as Tecent Legu      qihoo 360 360       More details can refer my Chinese tutorial

User · Answer

Decompilation of APK file is possible  But it might be difficult to understand the code if it is  obfuscated    ApkTool to view resources inside APK File    Extracts AndroidManifest xml and everything in res folder layout xml files  images  htmls used on webview etc        command   apktool bat d sampleApp apk NOTE  You can achieve this by using zip utility like 7-zip  But  It also extracts the  smali file of all  class files    Using dex2jar   Generates  jar file from  apk file  we need JD-GUI to view the source code from this  jar  command   dex2jar sampleApp apk   Decompiling  jar using JD-GUI   decompiles the  class files  obfuscated- in a case of the android app  but a readable original code is obtained in a case of other  jar file   i e   we get  java back from the application

User · Answer

Sometimes you get broken code  when using dex2jar apktool  most notably in loops  To avoid this  use jadx  which decompiles dalvik bytecode into java source code  without creating a  jar  class file first as dex2jar does  apktool uses dex2jar I think   It is also open-source and in active development  It even has a GUI  for GUI-fanatics  Try it

User · Answer

First  an apk file is just a modified jar file   So the real question is can they decompile the dex files inside   The answer is sort of   There are already disassemblers  such as dedexer and smali   You can expect these to only get better  and theoretically it should eventually be possible to decompile to actual Java source  at least sometimes    See the previous question decompiling DEX into Java sourcecode    What you should remember is obfuscation never works   Choose a good license and do your best to enforce it through the law   Don t waste time with unreliable technical measures

[android] Is it possible to decompile an Android .apk file?

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