You can disassemble a binary and get back assembly source, but there is no way to get back your original Objective-C structured source code. EDIT: You may want to give Hopper a try. I didn’t try it personally yet but Mike Ash says it’s good.
It’s easy Get these tools: dex2jar to translate dex files to jar files jd-gui to view the java files in the jar The source code is quite readable as dex2jar makes some optimizations. Procedure: And here’s the procedure on how to decompile: Step 1: Convert classes.dex in test_apk-debug.apk to test_apk-debug_dex2jar.jar d2j-dex2jar.sh -f -o output_jar.jar apk_to_decompile.apk … Read more
2022 update: QuiltMC/quiltflower is the latest most advanced Java decompiler: Quiltflower is a modern, general purpose decompiler focused on improving code quality, speed, and usability. Quiltflower is a fork of Fernflower and Forgeflower. Changes include: New language features (Try with resources, switch expressions, pattern matching, and more) Better control flow generation (loops, try-catch, and switch, … Read more
2022 update: QuiltMC/quiltflower is the latest most advanced Java decompiler: Quiltflower is a modern, general purpose decompiler focused on improving code quality, speed, and usability. Quiltflower is a fork of Fernflower and Forgeflower. Changes include: New language features (Try with resources, switch expressions, pattern matching, and more) Better control flow generation (loops, try-catch, and switch, … Read more
It’s easy Get these tools: dex2jar to translate dex files to jar files jd-gui to view the java files in the jar The source code is quite readable as dex2jar makes some optimizations. Procedure: And here’s the procedure on how to decompile: Step 1: Convert classes.dex in test_apk-debug.apk to test_apk-debug_dex2jar.jar d2j-dex2jar.sh -f -o output_jar.jar apk_to_decompile.apk … Read more
Update February 2016: www.javadecompilers.com lists JAD as being: the most popular Java decompiler, but primarily of this age only. Written in C++, so very fast. Outdated, unsupported and does not decompile correctly Java 5 and later So your mileage may vary with recent jdk (7, 8). The same site list other tools. And javadecompiler, as … Read more
To Decompile an Access database you’ll need to create a shortcut with the following elements: Path to the MS Access Executable (MSACESS.exe) Path to the database you would like to decompile The /decompile flag All together, then, the shortcut would look something like the following: “C:\Program Files\Microsoft Office\Office\MSACCESS.EXE” “C:\users\tim\documents\Mydatabase.mdb” /decompile Obviously, the paths will be … Read more
The package name of an app has nothing to do with any class names, it’s just an entry in the manifest. It’s usually the same as the name of one of the packages in the application but it doesn’t have to be. Don’t do a global search and replace (which may mess things up), just … Read more