Dedexer is a disassembler tool for DEX files. DEX is a format introduced by the creators of the Android platform. The format and the associated opcode set is in distant relationship with the Java class file format and Java bytecodes. Dedexer is able to read the DEX format and turn into an "assembly-like format". This format was largely influenced by the Jasmin syntax but contains Dalvik opcodes. For this reason, Jasmin is not able to compile the generated files.


Access the download page from here.

How to use

Download ddx.jar and launch dedexer like this:

java -jar ddx.jar

Typical invocation is the following:

java -jar ddx.jar -d <directory> <dex file>

<Directory> is the file system location where dedexer generates its output file and <dex file> is the location of the input file. Additonally, the -o switch can be added to the command line which generates a detailed log file about the internal structure of the DEX file.

How to compile

You are encouraged to extend the tool, there is a lot to do! In order to compile dedexer, you need JUnit 4.5. There are no particular restrictions on the Java environment, JDK 1.5.0 and JDK 6 were tested.

Download file, edit the build.xml and update the home and junit-home properties to reflect the layout of your file system. Then you can build dedexer by invoking ant. The "ant junit" command runs the unit tests too.


Dedexer is in the public domain, no rights are reserved. If you reuse it, please, retain the credits.

Gabor Paller