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The decompilation service is to be disabled (see the official announcement). This will render the library and tools in the present repository non-functional. I will keep the repository online in case it is helpful to anyone.


A C++ library and tools providing easy access to the decompilation service through their public REST API.

Usage Example

The following example creates a decompiler, starts a decompilation of the given binary file, and prints the decompiled C code to the standard output.

#include <iostream>
#include <retdec/retdec.h>

using namespace retdec;

int main(int argc, char **argv) {
    if (argc != 3) {
        std::cerr << "usage: " << argv[0] << " API-KEY FILE\n";
        return 1;

    try {
        Decompiler decompiler(
        auto decompilation = decompiler.runDecompilation(
        std::cout << decompilation->getOutputHll();
        return 0;
    } catch (const Error &ex) {
        std::cerr << "error: " << ex.what() << "\n";
        return 1;


The library currently provides very basic support of the decompilation, file-analyzing, and test services.


To build the library and tools, you need:

The Boost and OpenSSL libraries have to be installed on your system. Other libraries are automatically downloaded and built if they are not present on your system.

Build and Installation

  • Clone the repository or download the sources into a directory. Let's call the directory retdec.
  • cd retdec
  • mkdir build && cd build
  • cmake ..
  • make && make install

You can pass additional parameters to cmake:

  • -DRETDEC_DOC=ON to build with API documentation (requires Doxygen, disabled by default).
  • -DRETDEC_TOOLS=ON to build with tools (disabled by default).
  • -DRETDEC_TESTS=ON to build with unit tests (disabled by default).
  • -DRETDEC_COVERAGE=ON to build with code coverage support (requires LCOV, disabled by default).
  • -DCMAKE_BUILD_TYPE=Debug to build with debugging information, which is useful during development. By default, the library is built in the Release mode.
  • -DCMAKE_INSTALL_PREFIX:PATH=/opt/retdec to set a custom installation path.

You can force a specific version of the required libraries by passing the following parameters to cmake:


The make call supports standard parameters, such as:

  • -j N to build the library in parallel using N processes.
  • VERBOSE=1 to show verbose output when building the library.


If you use CMake, you can incorporate the library into your project in the following way:

set(retdec_DIR "/path/to/installed/retdec/lib/cmake")
include_directories(SYSTEM ${retdec_INCLUDE_DIRS})

add_executable(your_app your_app.cpp)
target_link_libraries(your_app retdec)

API Documentation

The API documentation is available here:

You can also generate it by yourself (pass -DRETDEC_DOC=ON to cmake and run make doc).


Copyright (c) 2015 Petr Zemek ( and contributors.

Distributed under the MIT license. See the LICENSE file for more details.

Access from Other Languages

If you want to access the decompilation service from other languages, check out the following projects:

  • retdec-python - A library and tools for accessing the service from Python.
  • retdec-rust - A library and tools for accessing the service from Rust.
  • retdec-sh - Scripts for accessing the service from shell.


A C++ library and tools providing easy access to the decompilation service through their REST API.




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