GYP (generate your projects) is an obsolete build automation tool created in 2011 by Google.

[1] Its purpose was to generate native IDE project files (such as Visual Studio and Xcode) for building the Chromium web browser and is licensed as open source software using the BSD software license.

The functionality of GYP is similar to the CMake build tool.

In 2016, the Chromium project replaced GYP with GN, a tool that generates ninja builds.

[3][4] Other projects that migrated from GYP to GN include the V8 Javascript engine,[5] WebRTC[6] and Dart.