100 Communication systems software solutions and projects
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ZeroNet
9.7 8.2 JavaScriptOpen, free, and uncensorable websites, using Bitcoin cryptography and BitTorrent network. -
Reddit
9.7 0.0 L2 PythonSocial networking and news website where registered community members can submit content. -
Flarum
9.4 3.5 PHPDelightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again. -
Mail-in-a-Box
9.3 7.6 L3 PythonTurns any Ubuntu server into a fully functional mail server with one command. -
Postal
9.2 4.5 RubyA fully featured open source mail delivery platform for incoming & outgoing e-mail -
Synapse
9.1 9.9 L3 PythonA server for Matrix, an open standard for decentralized persistent communication. -
MailHog
9.0 0.5 GoSmall Golang executable which runs an SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. -
Chatwoot
8.9 9.4 RubySelf-hosted customer communication platform, an alternative to Intercom & Zendesk. -
Tinode
8.7 9.3 GoInstant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots. -
MailCatcher
8.6 1.1 L5 RubyRuby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. -
Gotify
8.5 6.2 GoSelf-hosted notification server with Android and CLI clients, similar to PushBullet. -
Lemmy
8.3 9.8 RustA link aggregator / reddit clone for the fediverse. Reddit alternative built in Rust. -
Actor
8.3 0.0 L2 JavaActor is an open source fast open source messaging platform with rich mobile and web clients. -
Isso
8.3 6.9 L4 PythonA lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus. -
Mailcow
8.3 9.6 PHPMail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration. -
Tutanota makes encryption easy
8.2 0.0 JavaScriptTutanota is the end-to-end encrypted mail client that enables you to communicate securely with anyone. -
Listmonk
8.2 8.6 GoHigh performance, self-hosted newsletter and mailing list manager with a modern dashboard. -
Patchwork
7.9 8.3 JavaScriptDecentralized messaging and sharing app built on top of Secure Scuttlebutt -
ProtonMail Web Client
7.9 8.8 JavaScriptOfficial AngularJS web client for the ProtonMail secure email service. -
Loomio
7.6 9.9 L3 RubyLoomio is a collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them. -
flaskbb
7.5 6.2 L4 PythonFlaskBB is forum software written in Python using the microframework Flask. You can easily create new topics, posts and send other users private messages. It also includes basic administration and moderation tools. -
phpBB
7.5 9.5 L2 PHPFlat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. -
remark42
7.5 9.0 GoA lightweight and simple comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers add comments. -
Misago
7.4 1.3 PythonMisago is fully featured modern forum application that is fast, scalable and responsive. -
Pump.io
7.4 4.0 L4 JavaScriptStream server that does most of what people really want from a social network. -
TextBelt
7.4 0.5 L3 JavaScriptAn outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. -
Modoboa
7.1 8.0 L5 PythonModoboa is a mail hosting and management platform including a modern and simplified Web User Interface. -
Asterisk
7.0 0.0 L2 CAn easy to use but advanced IP PBX system, VoIP gateway and conference server. -
twister
6.9 2.9 L1 C++Fully decentralized P2P microblogging platform leveraging the free software implementations of Bitcoin and BitTorrent protocols. -
Misskey
6.8 9.8 TypeScriptDecentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon. -
RetroShare
6.7 9.8 L1 C++Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. -
Kazoo
6.6 6.2 ErlangKAZOO is an open-source, highly scalable software platform designed to provide carrier-grade VoIP switch functions and features. -
Movim
6.4 9.5 L3 JavaScriptA brand new social network, full of awesome features in a modern and smart interface. -
FusionPBX
6.3 0.0 PHPAn open source project that provides a customizable and flexible web interface to the very powerful and highly scalable multi-platform voice switch called FreeSWITCH. -
Talkyard
6.1 9.4 TypeScriptCreate a community, where your users can suggest ideas and get questions answered. And have friendly open-ended discussions and chat -
Oragono
6.1 9.8 GoModern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a bouncer. -
DebOps
6.0 0.0 HTMLYour Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts. -
JSXC
5.9 8.6 TypeScriptA Real-time XMPP web chat application with video calls, file transfer and encrypted communication. There are also versions for Nextcloud/Owncloud and SOGo.
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