Open Source Communication Software

Rocket.Chat

An open source platform for secure collaboration across the entire software development lifecycle.

Element

Wire

User-first chat platform built with modern web technologies

Twake

Slack is a proprietary business communication platform

Microsoft Teams

Discord

Twilio

📬 Spacebar is a free open source selfhostable discord compatible communication platform

Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

Complete open source web conferencing system.

Desktop client for Cabal, the p2p/decentralized/local-first chat platform.

Yet another matrix client

Open-source customer engagement suite, an alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

A fast, bloat-free comments platform (Github mirror)

coyim - a safe and secure chat client

🚀 The open-source alternative to Twilio

Helpy is a modern, open source helpdesk customer support application. Features include knowledgebase, community discussions and support tickets integrated with email.

a Disqus alternative

Kontalk official Android client

🚀 WebRTC - P2P - Simple, Secure, Fast Real-Time Video Conferences Up to 4k and 60fps, compatible with all browsers and platforms.

Movim - Decentralized social platform

Send push notifications to your phone or desktop using PUT/POST

NVDA, the free and open source Screen Reader for Microsoft Windows

Matrix client / Element Web/Desktop fork

A private messenger for Android.

Image builder for Snikket server

🔊 A cross-platform soundboard

Privacy focused messenger that doesn't trust anyone with your identity, your contact list, or your communications

Zammad is a web based open source helpdesk/customer support system