Reko(Swedish: "decent, obliging") is a C# project containing a decompiler for machine code binaries. This project is freely available under the GNU General Public License.
The project consists of front ends, core decompiler engine, and back ends to help it achieve its goals. A command-line, a Windows GUI, and a ASP.NET front end exist at the time of writing. The decompiler engine receives inputs from the front ends in the form of either individual executable files or decompiler project files. Reko project files contain additional information about a binary file, helpful to the decompilation process or for formatting the output. The decompiler engine then proceeds to analyze the input binary.
Byte map view of a loaded ARM binary executable
Decompiled view of a loaded ARM binary executable
Reko has the ambition of supporting decompilation of various processor architectures and executable file formats with minimal user intervention. For a complete list, see thesupported binariespage.
Please note that many software licenses prohibit decompilation or other reverse engineering of their machine code binaries. Use this decompiler only if you have legal rights to decompile the binary (for instance if the binary is your own.)