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.
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
A private messaging platform with no user identifiers, using disposable relay nodes for metadata protection.
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 simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)
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.
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.
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
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.
mailcow: dockerized - 🐮 + 🐋 = 💕
A privacy-aware, distributed, open source social network that puts you in control of your data.
A glossy Matrix collaboration client for the web.
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
🌎 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.
Mautic is the world's largest open source marketing automation software, enabling businesses to run fully integrated campaigns.
screen sharing for developers https://screego.net/
💬 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.