Heidrun 1.5.1 (2026-09-27)
Mac
A Hotline client based on the original Heidrun.app.

GtkHx v1.4.0 (2026-09-26)
Linux
A Hotline client with a GTK+ interface.

Invigoration v2.3.2 (2026-09-25)
Windows, Mac, Linux
Battle.net Bot and Hotline Client

Hotline Navigator v0.3.0 (2026-09-05)
Mac, Windows, Linux, Android, iOS
A modern Hotline client.

Mobius Client v0.3.1 (2026-03-12)
Mac, Windows, Linux
A command line Hotline client.

Hotline (SwiftUI) 1.0beta28 (2026-03-03)
Mac OS 14.1 and later
A modern remake of Hotline for macOS, iOS and iPadOS.

rusty-hx 1.0.1 (2025-12-06)
A Hotline 1.2.3-style client written in Rust.

Decline 1.0-build-11 (2025-09-06)
Mac
A reimagined version of a third-party Hotline client from 2012.

Obsession v109.05-alpha (2024-10-09)
Windows, Mac, Linux
A Hotline client written in Qt, with Shift-JIS support.

Hot Lime
A Hotline client built with Electron.

Hotline (pennig)
A Hotline client for Apple platforms.

Hotline client (Common Lisp)
A Hotline client library and GUI in Common Lisp.

Hotline for the browser
A browser-based Hotline client written in Erlang.

HotStuff!
Mac OS 7.1 to 10.5
A classic Hotline client for the Mac.

hx-ng
A web-based Hotline client.

Liteline
System 6
Vintage Hotline Client

Senesco
A reverse-engineered Hotline client.

shx (I2P)
The SynHX client, patched for I2P.

SilverWing
BeOS, Haiku
A Hotline client for BeOS.

Zephyr
macOS
Modern Hotline client, embracing what once was.

Heidrun Server 1.5.1 (2026-09-16)
A Hotline server written in Swift.

Mobius v0.23.1 (2026-08-23)
Mac, Windows, Linux
A Hotline server written in Go.

Lemoniscate v0.1.7 (2026-04-17)
Mac OS X on PowerPC
A Hotline server for PowerPC Macs, in the spirit of Mobius.

Hotline Server 1.9.1 (2003-01-01)
Mac OS 9, Mac OS X, Windows
The original Hotline Server from Hotline Communications.

Hotline Docker images
Container images for running Hotline servers and trackers.

Hotline Server (NebuHiiEjamu)
A Hotline server that adds third-party protocol extensions.

hxd-ng
A next-generation Hotline server.

Janus
macOS, Linux, BSD, Windows
Modern cross-platform server software

jshxd
A Hotline server written in JavaScript.

mhxd
Unix
A Hotline server for Unix.

phxd
A Hotline server written in Python using Twisted.

phxd (with IRC)
phxd, a Python Hotline server, with IRC support added.

Pitbull Pro
Windows
A Hotline server, client and tracker for Windows.

rhxd
A Hotline server written in Rust.

shxd (I2P)
The SynHXD server, patched for I2P.

zhxd
A Hotline server written in Zig.

Magnetron v0.4.0 (2026-01-03)
A modern, multi-platform Hotline tracker.

Argus
AIX, macOS, Linux, Windows, Solaris, Illumos, BSD
Modern cross-platform tracker, implementing tracker protocol v1, v2 and v3.

hltracker (Visual Basic)
A Hotline tracker written in Visual Basic.

Heidrun Spirit 1.0.0 (2026-06-03)
A MegaHAL chatbot for Hotline.

Hotline Discord Bridge 1.0.0a (2026-04-08)
Connects Hotline servers and Discord channels.

Hotline2IRCRouter
Windows (mIRC)
An mIRC script that relays a Hotline server's chat to an IRC channel.

Heidrun protocol and CLI 1.0.0 (2026-06-21)
Shared Hotline protocol code and the Heidrun command line client.

Hotline Modern v0.9.1 (2026-06-04)
A modern reinvention of Hotline: chat and file sharing on self-hosted servers.

Caps
A Hotline client and server written in C++.

CreateList
Makes an HTML list of Hotline servers from a list of websites.

hotline (Ruby gem)
A Ruby gem for the Hotline protocol.

Hotline 1.9.2 banner patch
Fixes the broken banner ad in the Hotline 1.9.2 client.

Hotline icons
The Ultimate Icons Pack, for any Hotline client or server to use.

Hotline protocol notes (fogWraith)
Documentation of the Hotline protocol.

Hotline WebSocket bridge
Connects WebSocket clients to Hotline servers.

Hotline Wireshark dissector
Decodes the Hotline protocol in Wireshark.

HotlineManagement
Manage a Hotline server from a text interface.

hx-libs
Rust crates for the Hotline protocol, shared by GtkHx and hxd-ng.

Neolith
An easy-to-understand Hotline protocol implementation, with a reference client and server.

Net::Hotline
Perl libraries for the Hotline protocol.

Nyx
macOS, Linux, Windows
Instant Messenger built on top of the Hotline protocol, currently available in Janus

PullUpdates
Updates a Hotline server from a master server and restarts it.

pushguest
Pushes an updated guest account to several Hotline servers on Linux.

Tell us about it, and once a maintainer has looked it over it gets its own page here, with its releases followed automatically.

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• Suggest it on GitHub: anyone with a GitHub account.