Caprine

Caprine is an unofficial Facebook Messenger application for Linux. It provides a separate desktop-oriented way to use the Messenger service rather than relying on a web browser. The software is intended for people who communicate through Facebook Messenger and prefer a dedicated application on their Linux system.

The application is described as privacy-focused, making privacy a central part of its identity within the communication category. It also includes many useful features for Messenger use, although the available source information does not specify them individually. As an unofficial client, Caprine is distinct from an official Facebook or Messenger release.

Caprine is released as open-source software. This license allows the program to be treated as software whose source is available for inspection and other permitted uses under its license. Its Linux platform classification makes it relevant to users seeking communication software designed for that operating system.

MirrorNest mirrors the official Caprine build directly on its own storage. Before publication, the mirrored file is scanned for malware. This distribution arrangement gives Linux users a catalog-based way to obtain the listed build while preserving the original software context and its open-source status.