Zulip
Zulip is a free, open-source chat app for Linux. Zulip server and web application. Open-source team chat that helps teams stay productive and focused. It has 26,012 GitHub stars and is released under the Apache-2.0 license. Its source code is on GitHub at zulip/zulip.
- Official
- Linux
- Chat & communication
- Actively maintained
About Zulip
Zulip is an open-source organized team chat app with unique [topic-based threading][why-zulip] that combines the best of email and chat to make remote work productive and delightful. Fortune 500 companies, [leading open source projects][rust-case-study], and thousands of other organizations use Zulip every day. Zulip is the only [modern team chat app][features] that is designed for both live and asynchronous conversations.
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What is Zulip?
Zulip is a free, open-source chat app for Linux. Zulip server and web application. Open-source team chat that helps teams stay productive and focused. It has 26,012 GitHub stars and is released under the Apache-2.0 license. Its source code is on GitHub at zulip/zulip.
Is Zulip free and open source?
Yes. Zulip's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Zulip?
Download the installer for Linux from its GitHub Releases page (latest: 12.3) or the project website.
Is Zulip still maintained?
The repository's most recent commit was on Oct 7, 2026. appsgit only lists apps whose repository had a commit in the last six months.