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
101 OpenSIPS/opensips OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality… 1,544 C today
102 gotify/android An app for creating push notifications for new messages posted to gotify/server. 1,535 Java 4mo
103 balzack/databag fast & lightweight self-hosted messenger 1,512 TypeScript 5mo
104 ViewTube/viewtube ▶️ ViewTube: The open source, privacy-conscious way to enjoy your favorite YouTube content. Docs: https://viewtube.wiki 1,479 TypeScript today
105 jech/galene The Galène videoconference server 1,430 Go 2d
106 debops/debops DebOps - Your Debian-based data center in a box 1,429 Jinja today
107 inspircd/inspircd A high-performance Internet Relay Chat (IRCv3) server for UNIX-like and Windows systems 1,362 C++ 2d
108 dovecot/core Dovecot mail server 1,284 C today
109 opensource-socialnetwork/opensource-socialnetwork Open Source Social Network (OSSN) is a powerful open-source social networking software developed in PHP. It enables you to create a fully functional social net… 1,258 PHP 3d
110 mybb/mybb MyBB is a free and open source forum software. 1,251 PHP 5d
111 hyphanet/fred Freenet REference Daemon 1,228 Java 1mo
112 convos-chat/convos Convos :busts_in_silhouette: is the simplest way to use IRC in your browser 1,197 Go today
113 binwiederhier/ntfy-android Android app for ntfy.sh 1,181 Kotlin 20d
114 jointakahe/takahe An ActivityPub/Fediverse server 1,171 Python 2y
115 snuffyDev/Beatbump archived Alternative YouTube Music frontend built with Svelte/SvelteKit 🎧 1,130 TypeScript 1y
116 strukturag/spreed-webrtc WebRTC audio/video call and conferencing server. 1,111 JavaScript 8y
117 fusionpbx/fusionpbx Official FusionPBX - A full-featured domain based multi-tenant PBX and voice switch for FreeSwitch. 1,089 PHP today
118 2600hz/kazoo The core of an open-source, distributed, highly scalable platform designed to provide robust telecom services 990 Erlang 1y
119 kiwiirc/kiwiirc 🥝 Next generation of the Kiwi IRC web client 990 Vue 4mo
120 glowing-bear/glowing-bear A web client for WeeChat 982 JavaScript 3mo
121 HaschekSolutions/opentrashmail Open Source standalone trashmail solution that ships its own mail server 969 PHP 19d
122 benbusby/farside archived A smart redirecting gateway for various frontend services 938 HTML 2mo
123 Erudika/scoold The Stack Overflow clone for your team (self-hosted or hosted) 922 Java today
124 notifo-io/notifo Multi channel notification service for collaboration tools, e-commerce, news service and more. 885 C# 1mo
125 phpList/phplist3 Fully functional Open Source email marketing manager for creating, sending, integrating, and analysing email campaigns and newsletters. 883 PHP 9d
126 hnhx/librex Framework and javascript free privacy respecting meta search engine 847 PHP 2y
127 Luzifer/ots One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser 814 Go today
128 ernestwisniewski/kbin A reddit-like content aggregator and micro-blogging platform for the fediverse. 807 PHP 2y
129 quassel/quassel Quassel IRC: Chat comfortably. Everywhere. 793 C++ 4mo
130 SimpleMachines/SMF Simple Machines Forum — SMF in short — is free and open-source community forum software, delivering professional grade features in a package that allows you to… 759 PHP 1d
131 m242/maildrop archived MailDrop is an open-source, scalable, high-performance version of Mailinator. 723 CSS 7y
132 NuSkooler/enigma-bbs ENiGMA½ BBS Software 676 JavaScript today
133 hackershare/hackershare Hackershare is a powerful social bookmarking service and a knowledge-sharing community, with advanced search and tag management feature 670 HTML 2y
134 cyrusimap/cyrus-imapd Cyrus IMAP is an email, contacts and calendar server 653 C today
135 khlieng/dispatch Web-based IRC client in Go. 642 Go 3y
136 burhan-syed/troddit archived A web client for Reddit with authenticated logins and a variety of browsing options 623 TypeScript 1y
137 stalwartlabs/jmap-server archived Stalwart JMAP server 601 Rust 2y
138 devrsi0n/chirpy 💬 A privacy-friendly and customizable Disqus (comment system) alternate. 注重隐私保护和定制化的评论系统。 599 TypeScript 1d
139 eggheads/eggdrop The Eggdrop IRC Bot 589 C 20d
140 ngircd/ngircd Free, portable and lightweight Internet Relay Chat server 584 C 18d
141 mynaparrot/plugNmeet-server The open-source, self-hosted video conferencing software. Scalable, customizable, and with a powerful AI Meeting Agent. 577 Go today
142 Canop/miaou A chat server with OAuth2 authentication, persistent and searchable history, video and audio, markdown formatting, private and public rooms, stars, votes, embe… 555 JavaScript 5mo
143 fluxbb/fluxbb FluxBB is a fast, light, user-friendly forum application for your website. 544 PHP 3y
144 unrealircd/unrealircd Official UnrealIRCd repository. Downloads are available from our site 528 C 4d
145 miroslavpejic85/mirotalkc2c 📹 Open-source, self-hosted WebRTC 1-to-1 video calling for private real-time communication. Build secure browser-based consultations, coaching, support, telehe… 521 JavaScript 2d
146 progmaticltd/homebox A set of ansible scripts to build a personal mail server / private cloud / etc. 495 Shell 2y
147 stalwartlabs/smtp-server archived Stalwart SMTP Server 480 Rust 2y
148 Mibew/mibew Mibew Messenger - open-source live support application 477 PHP 1y
149 snikket-im/snikket-server Image builder for Snikket server 476 Lua 10d
150 anahitasocial/anahita archived Anahita is a platform and framework for developing open science and knowledge sharing applications on a social networking foundation. 445 PHP 15d