Open source, GNU/Linux-compatible version of the now unavailable Red Light Variety Alpha software, a Hotline protocol client and server with English and Japanese language support.

A free and opensource Java library for extracting icons and GIF-images from the hotline.dat file of the Hotline software provided by Hotsprings, Inc.

A set of modules for utilizing the Hotline protocol in a Perl environment.

An improved version with additional features making it compatible with GLoarbLine server and 1.9x servers.

Open source Hotline client and server applications for various operating systems derived from OpenLine which was one of the first free Hotline clones.

Free set of software using the Hotline protocols, providing Hotline application suites that can run on GNU/Linux, OS X and Unix. Provides release information for the base HXD products as well as mHXD.