Self Hosted Communication systems

100 Communication systems software solutions and projects

• Discourse

  9.9 10.0 L2 Ruby

  A platform for community discussion. Free, open, simple.
  

• Rocket.Chat

  9.9 9.9 L3 JavaScript

  The ultimate Free Open Source Solution for team communications.
  

Scout APM - Leading-edge performance monitoring starting at $39/month

Scout APM uses tracing logic that ties bottlenecks to source code so you know the exact line of code causing performance issues and can get back to building a great product faster.

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• Jitsi Meet

  9.8 9.8 L4 JavaScript

  Jitsi Meet - Secure, Simple and Scalable Video Conferences that you use as a standalone app or embed in your web application.
  

• Mattermost

  9.8 9.7 L1 Go

  Open source Slack-alternative in Golang and React - Mattermost
  

• Mastodon

  9.8 9.8 L5 Ruby

  Your self-hosted, globally interconnected microblogging community
  

• ZeroNet

  9.7 7.3 JavaScript

  ZeroNet - Decentralized websites using Bitcoin crypto and BitTorrent network

• Reddit

  9.7 0.0 L2 Python

  Social networking and news website where registered community members can submit content.

• Zulip

  9.7 10.0 L2 Python

  Zulip server and webapp - powerful open source team chat
  

• Symphony

  9.7 9.4 L1 Java

  A modern community

• diaspora*

  9.6 7.8 L4 Ruby

  A privacy-aware, distributed, open source social network.
  

• NodeBB

  9.6 9.9 L2 JavaScript

  Node.js based forum software built for the modern web
  

• Flarum

  9.4 4.6 PHP

  Simple forum software for building great communities.
  

• Mail-in-a-Box

  9.3 8.0 L3 Python

  Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
  

• Tox

  9.3 0.0 L3 C

  The future of online communications.

• Lets-Chat

  9.3 0.0 L5 JavaScript

  Self-hosted chat app for small teams
  

• Postal

  9.2 3.6 Ruby

  📨 A fully featured open source mail delivery platform for incoming & outgoing e-mail
  

• Telescope

  9.2 8.5 JavaScript

  🌋 A toolkit to quickly build apps with React, GraphQL & Meteor
  

• Chatwoot

  9.2 9.7 Ruby

  Open-source customer engagement suite, an alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬
  

• Synapse

  9.1 9.9 L3 Python

  Synapse: Matrix reference homeserver
  

• MailHog

  9.1 0.0 Go

  Web and API based SMTP testing
  

• Mailpile

  9.1 1.4 L2 Python

  A free & open modern, fast email client with user-friendly encryption and privacy features
  

• Vector

  9.0 9.7 L4 HTML

  A glossy Matrix collaboration client for the web.
  

• docker-mailserver

  9.0 8.7 Shell

  A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker. [Moved to: https://github.com/docker-mailserver/docker-mailserver]
  

• HumHub

  8.9 9.7 L4 PHP

  HumHub is an Open Source Enterprise Social Network. Easy to install, intuitive to use and extendable with countless freely available modules.
  

• Mautic

  8.8 9.8 L2 PHP

  Mautic: Open Source Marketing Automation Software.
  

• ejabberd

  8.8 9.4 Erlang

  Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)
  

• Tinode

  8.7 9.3 Go

  Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
  

• Gotify

  8.6 6.2 Go

  A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)
  

• Roundcube

  8.6 9.3 L3 PHP

  The Roundcube Webmail suite
  

• Mailtrain

  8.5 7.8 JavaScript

  Self hosted newsletter app
  

• Centrifugo

  8.5 8.0 Go

  Scalable real-time messaging server in language-agnostic way. Set up once and forever.
  

• MailCatcher

  8.5 3.8 L5 Ruby

  Catches mail and serves it through a dream.

• Mumble

  8.4 9.8 L1 C++

  Mumble is an open-source, low-latency, high quality voice chat software.
  

• Mailcow

  8.4 9.6 PHP

  mailcow: dockerized - 🐮 + 🐋 = 💕
  

• Lemmy

  8.4 9.7 Rust

  🐀 Building a federated alternative to reddit in rust
  

• Listmonk

  8.4 9.0 Go

  High performance, self-hosted newsletter and mailing list manager with a modern dashboard. Single binary app.

• Haraka

  8.3 6.8 L3 JavaScript

  A fast, highly extensible, and event driven SMTP server
  

• The Lounge

  8.3 8.5 L4 JavaScript

  💬 Modern, responsive, cross-platform, self-hosted web IRC client
  

• Actor

  8.3 0.0 L2 Java

  Actor Messaging platform
  

• Openfire

  8.3 9.0 L1 Java

  An XMPP server licensed under the Open Source Apache License.
  

• Mail For Good

  8.3 0.0 JavaScript

  An open source email campaign management tool for nonprofits
  

• Tutanota makes encryption easy

  8.2 9.8 JavaScript

  Tutanota is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices.
  

• RainLoop

  8.2 6.8 L3 PHP

  Simple, modern & fast web-based email client

• Isso

  8.2 7.1 L4 Python

  a Disqus alternative

• Shout

  8.0 0.9 L4 JavaScript

  Deprecated. See fork @ https://github.com/thelounge

• Papercups

  8.0 9.6 Elixir

  Open-source live customer chat
  

• Jitsi Video Bridge

  8.0 9.0 L1 Java

  Jitsi Videobridge is a WebRTC compatible video router or SFU that lets build highly scalable video conferencing infrastructure (i.e., up to hundreds of conferences per server).
  

• Friends

  7.9 0.0 L4 JavaScript

  P2P chat powered by the web.

• Bootcamp

  7.9 0.0 CSS

  An enterprise social network

• Patchwork

  7.9 8.6 JavaScript

  A decentralized messaging and sharing app built on top of Secure Scuttlebutt (SSB).
  

• Converse.js

  7.9 9.6 L2 JavaScript

  Web-based XMPP/Jabber chat client written in JavaScript
  

• Vanilla Forums

  7.8 7.1 L2 PHP

  Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.
  

• Kandan

  7.8 0.0 JavaScript

  Kandan is an Open Source Alternative to HipChat
  

• Mailu

  7.8 8.4 Python

  Insular email distribution - mail server as Docker images
  

• ProtonMail Web Client

  7.8 8.6 JavaScript

  Official AngularJS web client for the ProtonMail secure email service.
  

• PixelFed

  7.7 9.8 PHP

  Photo Sharing. For Everyone.
  

• Loomio

  7.6 9.9 L3 Ruby

  Loomio helps people make decisions together
  

• remark42

  7.6 9.3 Go

  comment engine

• flaskbb

  7.5 6.4 L4 Python

  A classic Forum Software in Python using Flask.
  

• hack.chat

  7.5 0.0 L3 JavaScript

  A minimal, distraction-free chat application.

• phpBB

  7.5 9.6 L2 PHP

  phpBB Development: phpBB is a popular open-source bulletin board written in PHP. This repository also contains the history of version 2.
  

• formspree

  7.5 0.0 L3 Python

  Easy HTML form without PHP or JavaScript
  

• Kamailio

  7.4 9.9 L2 C

  Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms -
  

• Misago

  7.4 0.0 Python

  Misago is fully featured modern forum application that is fast, scalable and responsive.

• TextBelt

  7.4 2.4 L3 JavaScript

  Free API for outgoing SMS

• Live Helper Chat

  7.4 9.7 L3 PHP

  Live Helper Chat - live support for your website. Featuring web and mobile apps, Voice & Video & ScreenShare. Supports Telegram, Twilio (whatsapp), Facebook messenger including building a bot.
  

• Weechat

  7.3 9.6 L1 C

  The extensible chat client.
  

• Pump.io

  7.3 3.1 L4 JavaScript

  Social server with an ActivityStreams API
  

• Elgg

  7.3 7.7 L3 PHP

  A social networking engine in PHP/MySQL
  

• ZNC

  7.2 7.0 L1 C++

  Official repository for the ZNC IRC bouncer
  

• Asterisk

  7.1 9.1 L2 C

  Mirror of the official Asterisk (https://www.asterisk.org) Project repository. No pull requests here please. Use Gerrit:
  

• Modoboa

  7.1 8.1 L5 Python

  Mail hosting made simple
  

• Hubl.in

  7.1 0.5 L3 JavaScript

  DEPRECATED - An easy and free video conference service based on WebRTC
  

• MongooseIM

  7.0 9.8 Erlang

  MongooseIM is a mobile messaging platform with focus on performance and scalability
  

• Coral

  6.9 9.2 TypeScript

  A better commenting experience from Vox Media
  

• Misskey

  6.9 9.9 TypeScript

  🌎 A interplanetary communication platform 🚀
  

• twister

  6.8 2.7 L1 C++

  twister core / daemon

• Candy

  6.8 0.4 L3 JavaScript

  JavaScript-based multi-user chat client for XMPP.
  

• RetroShare

  6.6 9.7 L1 C++

  RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.
  

• Node-Chat

  6.6 0.0 L2 JavaScript

  :speech_balloon: Chat application built with NodeJS and Material Design

• Kazoo

  6.6 1.8 Erlang

  The core of an open-source, distributed, highly scalable platform designed to provide robust telecom services
  

• Spreed

  6.5 0.0 JavaScript

  WebRTC audio/video call and conferencing server.
  

• OSSN

  6.5 9.4 L3 PHP

  Open Source Social Network (OSSN) is a social networking software written in PHP. It allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests. It is available in 16 international languages.
  

• Kaiwa

  6.5 0.0 L4 JavaScript

  [UNMAINTAINED] A modern XMPP Web client
  

• wildduck

  6.5 8.7 JavaScript

  Opinionated email server
  

• Thredded

  6.4 3.7 L5 Ruby

  The best Rails forums engine ever.
  

• MyBB

  6.4 9.2 L1 PHP

  MyBB is a free and open source forum software.
  

• Movim

  6.4 9.5 L3 JavaScript

  Movim - Decentralized social platform
  

• Friendica

  6.4 9.8 L1 PHP

  Friendica Communications Platform

• FusionPBX

  6.3 9.9 PHP

  Official FusionPBX - A full-featured domain based multi-tenant PBX and voice switch for FreeSwitch.
  

• SimpleLogin

  6.2 8.6 CSS

  The SimpleLogin back-end
  

• InspIRCd

  6.2 9.3 C++

  A modular C++ IRC server (ircd).
  

• Homer

  6.1 2.9 Shell

  HOMER - 100% Open-Source SIP / VoIP Packet Capture & Monitoring
  

• Oragono

  6.1 9.7 Go

  A modern IRC server (daemon/ircd) written in Go.
  

• Talkyard

  6.0 9.4 TypeScript

  A community discussion platform: Brings together the main features from StackOverflow, Slack, Discourse, Reddit, and Disqus blog comments.

• WBO

  6.0 8.9 JavaScript

  Online collaborative Whiteboard that is simple, free, easy to use and to deploy

• DebOps

  6.0 9.7 Jinja

  DebOps - Your Debian-based data center in a box
  

• AnonAddy

  5.9 7.1 PHP

  Anonymous email forwarding
  

• Mailman

  5.9 0.0 L5 Ruby

  The Gnu mailing list server.

• Glowing Bear

  5.8 6.3 JavaScript

  A web client for WeeChat
  

* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest. Visit our partner's website for more details.

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