Spectrum 2
★ 421About
Spectrum 2 is an open source instant messaging transport designed to bridge multiple instant messaging networks. It is intended for users who want to communicate with one another even when they are...
Community Ratings
No ratings yetNew this week
Read recap →Weekly Recap — Oct 2, 2026 – Oct 9, 2026Oct 9, 2026
Features
- cross-network chat
- instant messaging transport layer
Details
- Last Updated
- Sep 24, 2026
- Created
- Feb 10, 2011
- Runtime / Stack
- C++
- Privacy & Independence
- No Cloud Required
- Deployment
Deployment: no container deployment found
Tags
Track your self-hosted stack
Bookmark software to try, rate tools you've used, and keep your collection in one place.
Metadata extracted from README on Mar 25, 2026
Related Software
Openfire
3.1k
Openfire is an open-source XMPP server for real-time collaboration and instant messaging.
XMPP ServersCustom CommunicationsSelf Hosting Solutions+1
MongooseIM
1.8k
MongooseIM is a scalable XMPP server platform for building instant messaging systems.
XMPP ServersCustom CommunicationsSelf Hosting Solutions+1
Enigma 1/2 BBS
668
ENiGMA½ is a modern, highly customizable BBS software with support for traditional terminal access and web-based services.
Social NetworksPermissive LicenseCustom Communications+2
ejabberd
6.7k
ejabberd is an open-source, scalable realtime platform that includes an XMPP server, MQTT broker, and SIP service.
XMPP ServersCopyleft LicenseSIP Communication+2
Open Core
Snikket
465
Snikket is an open-source, self-hosted personal messaging service with Docker-based server images.
XMPP ServersSelf Hosting SolutionsPermissive License
Tigase
358
Tigase XMPP Server is a highly optimized, modular, and flexible XMPP/Jabber server written in Java.
XMPP ServersSelf Hosting SolutionsIoT Platforms+1
Open Core
FreedomBox
65
Community project to develop, design and promote personal servers running free software for private, personal, communications.
Self Hosting SolutionsCopyleft LicenseXMPP Servers+2
Fully FOSS
Prosody IM
Feature-rich and easy to configure XMPP server.
XMPP ServersPermissive LicenseSelf Hosting Solutions
GNUnet
Software framework for decentralized, peer-to-peer networking.
Custom CommunicationsP2P File SharingNetwork Utilities+1
Rocket.Chat
46.2k
An open-source, secure, fully customizable communications platform for team collaboration and messaging.
Custom CommunicationsFOSS with IssuesOpen-Washing Risk+3
14 ContainersFOSS with Issues
Chatwoot
37.7k
An open-source, self-hosted customer support platform for managing conversations across channels.
Custom CommunicationsSelf Hosting SolutionsTicketing Systems+2
4 Containers
Zulip
26.0k
Zulip is an open-source team chat app with topic-based threading for organized live and asynchronous conversations.
Custom CommunicationsPermissive LicenseSelf Hosting Solutions