100 Communication systems software solutions and projects
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Mattermost
9.8 9.8 L1 GoMattermost is an open source platform for secure collaboration across the entire software development lifecycle. -
Jitsi Meet
9.7 9.9 L4 TypeScriptJitsi Meet - Secure, Simple and Scalable Video Conferences that you use as a standalone app or embed in your web application. -
Zulip
9.7 10.0 L2 PythonZulip server and web application. Open-source team chat that helps teams stay productive and focused. -
Reddit
9.7 0.0 L2 PythonSocial networking and news website where registered community members can submit content. -
ZeroNet
9.6 0.0 JavaScriptZeroNet - Decentralized websites using Bitcoin crypto and BitTorrent network -
Chatwoot
9.4 9.8 RubyOpen-source customer engagement suite, an alternative to Intercom, Zendesk, Salesforce Service Cloud etc. ๐ฅ๐ฌ -
Mail-in-a-Box
9.2 5.7 L3 PythonMail-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. -
Postal
9.2 4.8 Rubyโ๏ธ A fully featured open source mail delivery platform for incoming & outgoing e-mail -
Tinode
9.1 9.5 GoInstant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots -
Mailpile
9.0 2.0 L2 PythonA free & open modern, fast email client with user-friendly encryption and privacy features -
docker-mailserver
9.0 8.7 ShellA fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker. [Moved to: https://github.com/docker-mailserver/docker-mailserver] -
Listmonk
8.9 8.8 GoHigh performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app. -
HumHub
8.8 9.3 L4 PHPHumHub is an Open Source Enterprise Social Network. Easy to install, intuitive to use and extendable with countless freely available modules. -
Gotify
8.7 3.9 GoA simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui) -
ejabberd
8.6 9.2 ErlangRobust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server) -
Centrifugo
8.5 8.4 GoScalable real-time messaging server in a language-agnostic way. Set up once and forever. -
Berty
8.4 9.7 GoBerty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network -
Tutanota makes encryption easy
8.2 9.9 TypeScriptTutanota is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices. -
The Lounge
8.2 8.4 L4 TypeScript๐ฌ โ Modern, responsive, cross-platform, self-hosted web IRC client -
Patchwork
7.9 8.6 JavaScriptA decentralized messaging and sharing app built on top of Secure Scuttlebutt (SSB). -
Jitsi Video Bridge
7.8 8.6 L1 KotlinJitsi 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). -
Vanilla Forums
7.6 5.1 L2 PHPVanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community. -
Kamailio
7.4 9.9 L2 CKamailio - The Open Source SIP Server for large VoIP and real-time communication platforms - -
Misago
7.2 5.6 PythonMisago is fully featured modern forum application that is fast, scalable and responsive. -
phpBB
7.2 9.6 L2 PHPphpBB Development: phpBB is a popular open-source bulletin board written in PHP. This repository also contains the history of version 2. -
Live Helper Chat
7.2 9.3 L3 PHPLive 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. -
Asterisk
7.1 9.6 L2 CMirror of the official Asterisk (https://www.asterisk.org) Project repository. No pull requests here please. Use Gerrit: -
Hubl.in
7.1 0.5 L3 JavaScriptDEPRECATED - An easy and free video conference service based on WebRTC -
MongooseIM
6.7 9.9 ErlangMongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines. -
WBO
6.5 6.8 JavaScriptOnline collaborative Whiteboard that is simple, free, easy to use and to deploy -
RetroShare
6.4 9.3 L1 C++RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform. -
Node-Chat
6.4 0.0 L2 JavaScript:speech_balloon: Chat application built with NodeJS and Material Design -
OSSN
6.4 9.0 L3 PHPOpen 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 17 international languages. -
Kazoo
6.2 4.4 ErlangThe core of an open-source, distributed, highly scalable platform designed to provide robust telecom services -
FusionPBX
6.2 9.9 PHPOfficial FusionPBX - A full-featured domain based multi-tenant PBX and voice switch for FreeSwitch. -
Twake
6.1 9.2 TypeScriptTwake is a secure open source collaboration platform to improve organizational productivity. -
Rallly
6.0 9.3 TypeScriptSelf-hostable doodle poll alternative. Find the best date for a meeting with your colleagues or friends without the back and forth emails.
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* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.