An HPKG file is a package used by Haiku, an open source computer operating system. It contains an application, which includes libraries, add-ons, and data files required by the application. HPKG files can be downloaded and installed using HaikuDepot, a package management system included with Haiku.

While HPKG files are typically installed using HaikuDepot, they can also be installed with pkgman in Terminal. If you are installing an HPKG manually, place the HPKG file in /system/packages/. Installed applications can be found in /system/apps/. The Haiku operating system (OS) was inspired by BeOS, which was an OS developed in the 1990s. The first beta of Haiku was released in September 2018. The HPKG file format replaced .ZIP and .PKG archives, which were previously used by BeOS for storing applications.