CMake is a cross-platform software build system and the de facto standard for building C++ code, with more than two million downloads each month. It helps teams manage the software build process and get new projects running efficiently across different platforms. Its features include single-source builds for multiple platforms, out-of-source builds, system introspection, cross-platform testing, and packaging. CMake also works alongside CTest and CPack, which support testing and deployment workflows.

The CMake website provides resources for users, including getting-started guidance and documentation. Through Kitware, the company behind the site, users can access expert support, custom CMake builds, and training. Training options include an on-demand course for self-paced learning, live sessions led by CMake developers, and courses tailored to a team’s needs. These services help individuals and organizations adopt and use the open-source platform effectively. CMake is used by engineers and organizations across a range of fields, with users highlighting its portability, support for complex projects, and ability to simplify development and deployment.