zulip

    zulip/zulip

    #294 this week

    Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

    mobile
    apache
    chat
    collaboration
    electron
    foss
    Python
    Apache-2.0
    25.9K stars
    10.2K forks
    25.9K GitHub watchers
    Updated 9/8/2026
    View on GitHub

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    Use Cases & Benefits

    • Provides an open-source team chat platform with topic-based threading for organized, asynchronous and live conversations.
    • Enables highly productive remote collaboration by combining email-style threading with real-time chat in a single interface.
    • Use for self-hosting a secure, scalable team chat server on Linux or Docker environments.
    • Use for integrating a modern chat solution into open source projects or Fortune 500 company workflows.
    • Use for contributing to or customizing a well-documented Python and JavaScript chat application with active community support.

    About zulip

    Zulip overview

    Zulip is an open-source team collaboration tool with unique topic-based threading that combines the best of email and chat to make remote work productive and delightful. Fortune 500 companies, leading open source projects, and thousands of other organizations use Zulip every day. Zulip is the only modern team chat app that is designed for both live and asynchronous conversations.

    Zulip is built by a distributed community of developers from all around the world, with 97+ people who have each contributed 100+ commits. With over 1,500 contributors merging over 500 commits a month, Zulip is the largest and fastest growing open source team chat project.

    Come find us on the development community chat!

    GitHub Actions build status coverage status Mypy coverage Ruff code style: prettier GitHub release docs Zulip chat Twitter GitHub Sponsors

    Getting started

    You may also be interested in reading our blog, and following us on Twitter and LinkedIn.

    Zulip is distributed under the Apache 2.0 license.

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