Rocket.Chat
Open source team chat and video calls on your own servers
12 tools like Mattermost, chosen by what they do. About Mattermost

Open source team chat and video calls on your own servers


Free team chat with channels, threads, guests and video calls

Free open source video calls you can run on your own servers

Video meetings, team chat, phone and webinars in one platform

Browser video meetings with permanent room links and an API

Async team messaging built around threads instead of constant chat


AI meeting notes, action items and summaries with admin controls

Shared inbox and team chat for teams that run on email

Project management with tasks, docs, goals and chat in one app

Work management platform for boards, tasks and team workflows