Communication
Showing 134 Communication self-hosted open-source projects
A free, open-source social network server based on ActivityPub for self-hosted, federated microblogging communities.
A 100% open-source community discussion platform for those who want complete control over their forum.
The Secure CommsOS™ for mission-critical operations
An open-source notification infrastructure with a unified API for in-app, email, SMS, push, and chat notifications.
An open source, self-hosted collaboration platform with chat, workflow automation, voice calling, screen sharing, and AI integration.
An open-source, self-hosted customer support platform with live chat, email, and omnichannel messaging.
Send push notifications to your phone or desktop using PUT/POST
Open-source video conferencing platform with HD quality, content sharing, and end-to-end encryption for self-hosted or embedded meetings.
Open-source team chat with topic-based threading that combines the best of email and chat for productive remote work.
High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
A private messaging platform with no user identifiers, using disposable relay nodes for metadata protection.
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
A Python library and CLI tool for sending notifications to over 75+ services (Telegram, Discord, Slack, email, SMS, etc.) with a unified API.
A fully featured open source mail delivery platform for incoming and outgoing email, designed for websites and web servers.
Simple forum software for building great communities.
A Q&A platform software for teams at any scales. Whether it's a community forum, help center, or knowledge management platform, you can always count on Apache Answer.
A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)
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.
Node.js-based forum software with real-time interactions, mobile responsiveness, and a plugin-driven architecture.
A self-hostable, decentralized link aggregator and forum for the fediverse, similar to Reddit.
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
A privacy-aware, distributed, open source social network that puts you in control of your data.
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
A glossy Matrix collaboration client for the web.
mailcow: dockerized - 🐮 + 🐋 = 💕
🌎 A completely free and open interplanetary-microblogging platform 🚀
A scalable, language-agnostic real-time messaging server for building chat apps, live features, and collaborative tools.
screen sharing for developers https://screego.net/
Mautic is the world's largest open source marketing automation software, enabling businesses to run fully integrated campaigns.
💬 Typebot is a powerful chatbot builder that you can self-host.
A complete web conferencing system for virtual classes and more!
Janus WebRTC Server
Mumble is an open-source, low-latency, high quality voice chat software.
Insular email distribution - mail server as Docker images
The Roundcube Webmail suite
A federated photo sharing platform that lets you share photos without algorithmic barriers, part of the fediverse.