Communication - Custom Communication Systems#
Communication software used to provide remote access to systems and exchange files and messages in text, audio and/or video formats between different computers or users, using their own custom protocols.
This page lists all projects in this category. Use the index of all projects, the sidebar, or click on tags to browse other categories.
Apprise allows you to send a notification to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc.
Bluetooth LE chat app to communicate between android devices with P2P architecture.
Language-agnostic real-time messaging (Websocket or SockJS) server.
Self-hosted customer communication platform (alternative to Intercom & Zendesk).
A peer-to-peer chat app that is serverless, decentralized, and ephemeral.
A simple, fast, and reliable chat server powered by Matrix.
End-to-end encrypted instant web chat.
Federated, end-to-end encrypted messaging service for the web, iOS, and Android, supporting text, photos, video, and WebRTC video and audio calls.
Second-generation Matrix homeserver written in Go. It intends to provide an efficient, reliable and scalable alternative to Synapse.
Fully-featured Matrix client for Web, iOS & Android.
Free software framework for decentralized, peer-to-peer networking.
Self-hosted notification server with Android and CLI clients, similar to PushBullet.
HawkPost is a web app that lets you create unique links that you can share with a person that desires to send you important information but doesn’t know how to encrypt it. The message is encrypted in their browser and sent to your email address.
Anonymously share files, browse and publish freesites (web sites accessible only through Hyphanet) and chat on forums.
Private audio chat rooms to talk to friends and family (alternative to Clubhouse).
Free and universal communication platform which preserves the user’s privacy and freedoms (formerly GNU Ring).
PHP Based Live Chat Application.
Ephemeral, encrypted, in-browser chat rooms.
Live Helper Chat#
Live Support chat for your website.
Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).
Multi-room persistent chat server.
Mibew Messenger is an open-source live support application written in PHP and MySQL. It enables one-on-one chat assistance in real-time directly from your website.
Low-latency, high quality voice/text chat software.
Self-hosted / cloud notification infrastructure for developers.
Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify.
One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser.
Self-hosted notification server for relaying push notifications via Matrix, similar to PushBullet and Gotify.
Revolt is a user-first chat platform built with modern web technologies.
Teamchat solution similar to Gitter.im or Slack.
Screego is a simple tool to quickly share your screen to one or multiple people via web browser.
Simple peer-to-peer screen sharing solution for sharing your screen with WebRTC.
Keep secrets out of emails or chat logs, share them using secure links with passphrase and expiration dates.
The most private and secure chat and applications platform - now with double ratchet E2E encryption.
Simple, fast, and resilient open-source WebSockets server (drop-in alternative to Pusher).
Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks.
Server for Matrix, an open standard for decentralized persistent communication.
Syndie is a libre system for operating distributed forums.
Next generation noIM application in your own workspace, not only another Slack/Discord/rocket.chat.
Outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads.
All-in-one customer engagement platform from lead-gen to post-sales, from WhatsApp to your website. With omni-channel live agents and AI-powered chatbots (alternative to Intercom, Zendesk, Tawk.to and Tidio).
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots.
Distributed, secure messenger with audio and video chat capabilities.
Conversational app builder (alternative to Typeform or Landbot).
Web Whiteboard to collaborate in real-time on schemas, drawings, and notes.
Secure sharing of secrets, passwords and files.
Zulip is a powerful, open source group chat application.