Rocket.Chat is a self-hosted team messaging platform with real-time chat, voice, video, and omnichannel customer support in one open source deployment. MIT licensed Community Edition; supports air-gapped networks.
A Matrix client focused on providing a simple, elegant, and secure interface for decentralized communication.
An open-source, privacy-first digital workplace that consolidates secure chat, email, file storage, calendars, tasks, and video conferencing into one unified platform.
An open-source, web-based XMPP chat client offering self-hosting, customization, and end-to-end encryption for secure messaging.
It is a secure collaboration app using Matrix, offering end-to-end encryption, decentralization, and digital sovereignty for teams.
An organized team chat app designed for distributed teams, offering features like threaded conversations and powerful search.
Mattermost is a self-hosted team messaging platform with channels, threads, integrations, and workflow automation for security-sensitive organizations. MIT licensed.
An open-source platform that replaces Linear, Jira, Slack, and Notion, offering team planning, project management, and virtual office features.