Communication systems / Free Software and web applications

This is a list of Free Software network services and web applications which can be hosted locally. Selfhosting is the process of locally hosting and managing applications instead of renting from SaaS providers. ---from github/Kickball/awesome-selfhosted


Custom communication systems

  • Broid - Broid enables rich conversations on all messaging channels within a single schema integration using W3C standards. (Demo, Source Code) AGPL-3.0 Nodejs
  • Centrifugo - Language-agnostic real-time messaging (Websocket or SockJS) server. (Demo) MIT Go
  • Cherry - Tiny webchat server. GPL-2.0 Go
  • Freenet - Anonymously share files, browse and publish "freesites" (web sites accessible only through Freenet) and chat on forums. (Source Code) GPL-2.0 Java
  • Friends - P2P chat powered by the web. (Source Code) MIT Nodejs
  • GNUnet - Free software framework for decentralized, peer-to-peer networking. (Source Code) GPL-3.0 C
  • Gotify - Self-hosted notification server with Android and CLI clients, similar to PushBullet. (Source Code, Clients) MIT Go
  • Hawkpost - HawkPost is a web app that lets you create unique links that you can share with a person that desires to send you important information but doesn't know how to encrypt it. The message is encrypted in their browser and sent to your email address. (Source Code) MIT Python
  • Hubl.in - WebRTC powered video conference, chat and collaborative editor. (Source Code) AGPL-3.0 Nodejs
  • Jitsi Meet - Jitsi Meet is an OpenSource (MIT) WebRTC Javascript application that uses Jitsi Videobridge to provide high quality, scalable video conferences. (Source Code) MIT Javascript
  • Jitsi Video Bridge - WebRTC compatible Selective Forwarding Unit (SFU) that allows for multiuser video communication. (Source Code) Apache-2.0 Java
  • Kandan - Kandan is an Open Source Alternative to HipChat. (Source Code) AGPL-3.0 Ruby
  • KChat - PHP Based Live Chat Aplication. Apache-2.0 PHP
  • Lets-Chat - Self hosted chat suite written in Node. (Source Code) MIT Nodejs
  • Live Helper Chat - Live Support chat for your website. (Source Code) Apache-2.0 PHP
  • Mattermost - Open-source, on-prem Slack-alternative. It can be integrated with Gitlab. (Source Code) AGPL-3.0/ApacheGo
  • MiAOU - Multi-room persistent chat server. (Source Code) MIT Nodejs
  • Mibew - Mibew Messenger is an open-source live support application written in PHP and MySQL. It enables one-on-one chat assistance in real-time directly from your website. (Demo, Source Code) Apache-2.0 PHP
  • Mumble - Low-latency, high quality voice/text chat software. (Source Code, Clients) BSD-3-Clause C++
  • Node-Chat - Not-so-basic open-source chat with admin features. MIT Nodejs
  • Rallly - Rallly is a free collaborative scheduling service. (Source Code) CC-BY-SA-4.0 Nodejs
  • RetroShare - Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. (Source Code) GPL-2.0 С++
  • Jami - Free and universal communication platform which preserves the user's privacy and freedoms (formerly GNU Ring). (Source Code) GPL-3.0 C++
  • Rocket.Chat - Teamchat solution similar to Gitter.im or Slack. (Source Code) MIT Nodejs
  • Spectrum 2 - Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks. (Source Code) GPL-3.0 C++
  • Spreed - WebRTC audio/video calls, conferencing server, and web client. (Source Code) AGPL-3.0 Go
  • Synapse - Server for Matrix, an open standard for decentralized persistent communication. (Source Code) Apache-2.0Python
    • Matrix Console Web - Web client meant to be a showcase of Matrix capabilities, and reference implementation of the Matrix standard. (Source Code) Apache-2.0 Javascript
    • RIOT - Glossy Matrix web client with an emphasis on performance and usability. (Source Code) Apache-2.0Javascript
  • Syndie - Syndie is a libre system for operating distributed forums. CC0-1.0 Java
  • TextBelt ⚠ - Outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. MIT Javascript
  • Tox - Distributed, secure messenger with audio and video chat capabilities. (Source Code) GPL-3.0 C
  • Tuber - Peer-to-peer video chat that works. (Source Code) MIT Javascript
  • ZeroNet ⚠ - Open, free, and uncensorable websites, using Bitcoin cryptography and BitTorrent network. (Source Code) GNU Python
  • Zulip - Zulip is a powerful, open source group chat application. (Source Code) Apache/Other Python
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