Easiest Chat & Communication to self-host

Screen sharing for developers

Low-latency, high-quality voice chat application

Replaces Discord, TeamSpeak

Modern, self-hosted web IRC client

Replaces IRCCloud, Slack

Self-hostable WebSocket server compatible with Pusher

Replaces Pusher

Privacy-focused lightweight commenting engine

Replaces Disqus

Lightweight self-hosted commenting server

Replaces Disqus

Free WebRTC video conferencing and meeting rooms

Replaces Zoom, Google Meet

All-in-one messenger that combines chat services

Replaces Rambox, Station

Minimal collaborative real-time text editor

Replaces Google Docs, Etherpad

Lightweight, privacy-friendly embeddable comment system

Replaces Disqus

Feature-rich event management system

Replaces Zoho Backstage

Group peer to peer video calls for everyone

Replaces BigBlueButton, Skype

Lightweight videoconferencing server

Replaces Zoom, Google Meet

JavaScript-based multi-user XMPP chat client

Replaces Chatango

Messaging platform operating without user identifiers

Command-line tool for sending and receiving Matrix messages

Replaces Slack CLI

Privacy-friendly, self-hosted web comments engine

Replaces Disqus

Lightweight Unix IRC server that is easy to configure

Replaces Slack

Self-hosted sticker picker widget for Matrix

Replaces Telegram stickers

Simple, lightweight web-based IRC client

Replaces IRCCloud

Server for unified push support in Molly chat application

Self-hosted backend for syncing Ferdium settings

Replaces Franz Server

Secure Scuttlebutt room server

Simple and efficient mailing list manager