Communication

Chat, email, video calls and social networks you run yourself

Chat & Messaging 63 Video Conferencing 12 VoIP & Telephony 11 Email Servers & Webmail 34 Newsletters & Mailing Lists 8 Social Networks & Forums 45 Push Notifications 4 Privacy Frontends 17

All apps in Communication

# App Description Stars Language Updated
51 matrix-org/dendrite archived Dendrite is a second-generation Matrix homeserver written in Go! 5,617 Go 1y
52 isso-comments/isso a Disqus alternative 5,313 Python 17d
53 signalwire/freeswitch FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation tha… 5,298 C 2d
54 libreddit/libreddit Private front-end for Reddit 5,199 Rust 1y
55 anonaddy/anonaddy Anonymous email forwarding 4,949 PHP 13d
56 miroslavpejic85/mirotalk 🚀 Open-source, self-hosted P2P WebRTC video conferencing for fast, private real-time communication. Create browser-based meeting rooms with no downloads or tim… 4,839 JavaScript today
57 element-hq/synapse Synapse: Matrix homeserver written in Python/Twisted + Rust 4,786 Python today
58 wasi-master/13ft My own custom 12ft.io replacement 4,362 Python 3d
59 RainLoop/rainloop-webmail archived Simple, modern & fast web-based email client 4,110 PHP 2y
60 freeCodeCamp/mail-for-good archived An open source email campaign management tool for nonprofits 3,807 JavaScript 5y
61 asterisk/asterisk The official Asterisk Project repository. 3,680 C 6d
62 msgbyte/tailchat Next generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chat 3,648 TypeScript 1mo
63 modoboa/modoboa Mail hosting made simple 3,543 Python today
64 weechat/weechat The extensible chat client. 3,421 C today
65 typpo/textbelt Free API for outgoing SMS 3,392 JavaScript 2y
66 ergochat/ergo A modern IRC server (daemon/ircd) written in Go. 3,360 Go 2d
67 errbotio/errbot Errbot is a chatbot, a daemon that connects to your favorite chat service and bring your tools and some fun into the conversation. 3,312 Python 16d
68 miroslavpejic85/mirotalksfu 🏆 Self-hosted, open-source WebRTC video conferencing platform for real-time communication and collaboration. A modern alternative to Zoom, Google Meet, Jitsi M… 3,158 JavaScript today
69 jitsi/jitsi-videobridge Jitsi Videobridge is a WebRTC compatible video router or SFU that lets build highly scalable video conferencing infrastructure (i.e., up to hundreds of confere… 3,109 Kotlin today
70 igniterealtime/Openfire An XMPP server licensed under the Open Source Apache License. 3,075 Java today
71 kamailio/kamailio Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability 2,994 C today
72 rafalp/Misago Misago is fully featured modern forum application that is fast, scalable and responsive. 2,779 Python today
73 TokTok/c-toxcore The future of online communications. 2,703 C 1d
74 stoatchat/self-hosted Deploy Stoat on your own infrastructure! 2,684 JavaScript 1d
75 DamageLabs/kandan Kandan is an Open Source Alternative to HipChat 2,683 TypeScript 7mo
76 lovasoa/whitebophir Online collaborative Whiteboard that is simple, free, easy to use and to deploy 2,682 JavaScript 1d
77 flaskbb/flaskbb A classic Forum Software in Python using Flask. 2,662 Python 1d
78 loomio/loomio Loomio is a collaborative decision-making tool 2,627 Ruby today
79 jeremyckahn/chitchatter Secure peer-to-peer chat that is serverless, decentralized, and ephemeral 2,342 TypeScript today
80 vitorfs/bootcamp An enterprise social network 2,301 CSS 3y
81 pentacent/keila Open Source Newsletter Tool. 2,263 Elixir 2d
82 LiveHelperChat/livehelperchat Live Helper Chat - live support for your website. Featuring web and mobile apps, Voice & Video & ScreenShare. Supports Telegram, Twilio (whatsapp), Facebook me… 2,257 PHP today
83 pablouser1/ProxiTok Open source alternative frontend for TikTok made using PHP 2,156 PHP 1y
84 znc/znc Official repository for the ZNC IRC bouncer 2,129 C++ 3d
85 zone-eu/wildduck Opinionated email server 2,113 JavaScript today
86 phpbb/phpbb phpBB Development: phpBB is a popular open-source bulletin board written in PHP. This repository also contains the history of version 2. 2,112 PHP 2d
87 movim/movim Movim - Decentralized social platform 2,076 PHP today
88 sipcapture/homer HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring 2,031 Go today
89 RetroShare/RetroShare RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform. 2,027 C++ 3d
90 coralproject/talk A better commenting experience from Vox Media 2,004 TypeScript 5d
91 thedaviddelta/lingva-translate Alternative front-end for Google Translate 1,851 TypeScript 3y
92 iredmail/iRedMail Full-featured, open source mail server solution for mainstream Linux/BSD distributions. 1,850 Shell 2d
93 debiki/talkyard A community discussion platform: Brings together the main features from StackOverflow, Slack, Discourse, Reddit, and Disqus blog comments. 1,814 TypeScript 4mo
94 cypht-org/cypht Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services) 1,793 PHP 2d
95 esl/MongooseIM MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is … 1,759 Erlang 3d
96 the-djmaze/snappymail Simple, modern & fast web-based email client 1,753 PHP today
97 fonoster/routr ⚡ The future of programmable SIP servers. 1,734 TypeScript today
98 friendica/friendica Friendica Communications Platform 1,700 PHP today
99 Elgg/Elgg A social networking engine in PHP/MySQL 1,679 PHP today
100 linagora/hublin archived DEPRECATED - An easy and free video conference service based on WebRTC 1,602 JavaScript 5y