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yaml-cpp is a YAML parser and emitter in C++ matching the YAML 1.2 spec.

To get a feel for how it can be used, see the Tutorial or How to Emit YAML. For the old API (version < 0.5.0), see How To Parse A Document.


If you find a bug, post an issue! If you have questions about how to use yaml-cpp, please post it on and tag it yaml-cpp.

How to Build

yaml-cpp uses CMake to support cross-platform building. The basic steps to build are:

  1. Download and install CMake (Resources -> Download).

Note: If you don't use the provided installer for your platform, make sure that you add CMake's bin folder to your path.

  1. Navigate into the source directory, and type:
mkdir build
cd build
  1. Run CMake. The basic syntax is:
cmake [-G generator] [-DYAML_BUILD_SHARED_LIBS=ON|OFF] ..

Build it!

  1. To clean up, just remove the build directory.

Recent Release

yaml-cpp 0.6.0 has been released! This release requires C++11, and no longer depends on Boost.

yaml-cpp 0.3.0 is still available if you want the old API.

The old API will continue to be supported, and will still receive bugfixes! The 0.3.x and 0.4.x versions will be old API releases, and 0.5.x and above will all be new API releases.

API Documentation

The autogenerated API reference is hosted on CodeDocs

Third Party Integrations

The following projects are not officially supported: