Zulip
Zulip is a modern team chat app designed for both live and asynchronous conversations. Developed by a distributed developer community, this open-source software can be hosted directly on Ubuntu or Debian Linux, using Docker, or on your own server with pre-created images on platforms like Digital Ocean and Render.
Zulip
95zulip · Chat & Messaging / Slack Alternatives
Common commercial products in this category: Slack, Microsoft Teams, Discord
- You run your own Zulip server on Ubuntu or Debian Linux.
- You combine the advantages of email and chat with topic (topic) based message sequences to keep your team's live and asynchronous conversations organized.
- Using Zulip Cloud hosting options, you use the application without server installation.
- • High number of open issues (2,050)
- ↑ PositiveHacker News
Dropbox has open-sourced Zulip
“Thanks for using and contributing to GitLab! Although Zulip is far ahead of other open source solutions we are leaning towards Rocket Chat. Javascript and Meteor are the most popular language and framework so it would be easier to contribute. It is not who is ahead now but about…”
- • NeutralHacker News
Dropbox has open-sourced Zulip
“Zulip can be hosted internally, and there is a desktop Linux client in addition to running fine in the usual zoo of Linux web browsers.”
Verified against README · Oct 26, 2026 · source
My note
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