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# Zulip overview
[Zulip](https://zulip.com) 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.
Zulip is built by a distributed community of developers from all around the
world, with 99+ 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](https://zulip.com/development-community/)!
[![GitHub Actions build status](https://github.com/zulip/zulip/actions/workflows/zulip-ci.yml/badge.svg)](https://github.com/zulip/zulip/actions/workflows/zulip-ci.yml?query=branch%3Amain)
[![coverage status](https://img.shields.io/codecov/c/github/zulip/zulip/main.svg)](https://codecov.io/gh/zulip/zulip)
[![Mypy coverage](https://img.shields.io/badge/mypy-100%25-green.svg)][mypy-coverage]
[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
[![GitHub release](https://img.shields.io/github/release/zulip/zulip.svg)](https://github.com/zulip/zulip/releases/latest)
[![docs](https://readthedocs.org/projects/zulip/badge/?version=latest)](https://zulip.readthedocs.io/en/latest/)
[![Zulip chat](https://img.shields.io/badge/zulip-join_chat-brightgreen.svg)](https://chat.zulip.org)
[![Bluesky](https://img.shields.io/badge/bluesky-@zulip.bsky.social-blue.svg?style=flat)](https://bsky.app/profile/zulip.bsky.social)
[![GitHub Sponsors](https://img.shields.io/github/sponsors/zulip)](https://github.com/sponsors/zulip)
[mypy-coverage]: https://blog.zulip.org/2016/10/13/static-types-in-python-oh-mypy/
[why-zulip]: https://zulip.com/why-zulip/
[rust-case-study]: https://zulip.com/case-studies/rust/
[features]: https://zulip.com/features/
## Getting started
- **Contributing code**. Check out our [guide for new
contributors](https://zulip.readthedocs.io/en/latest/contributing/contributing.html)
to get started. We have invested in making Zulip’s code highly
readable, thoughtfully tested, and easy to modify. Beyond that, we
have written an extraordinary 185K words of documentation for Zulip
contributors.
- **Contributing non-code**. [Report an
issue](https://zulip.readthedocs.io/en/latest/contributing/reporting-bugs.html),
[translate](https://zulip.readthedocs.io/en/latest/translating/translating.html)
Zulip into your language, or [give us
feedback](https://zulip.readthedocs.io/en/latest/contributing/suggesting-features.html).
We'd love to hear from you, whether you've been using Zulip for years, or are just
trying it out for the first time.
- **Checking Zulip out**. The best way to see Zulip in action is to [drop
by](https://chat.zulip.org/?show_try_zulip_modal) the Zulip development
community (no account required). We also recommend reading about Zulip's
[unique approach](https://zulip.com/why-zulip/) to organizing conversations.
- **Running a Zulip server**. Self-host Zulip directly on Ubuntu or Debian
Linux, in [Docker](https://github.com/zulip/docker-zulip), or with prebuilt
images for [Digital Ocean](https://marketplace.digitalocean.com/apps/zulip) and
[Render](https://render.com/docs/deploy-zulip).
Learn more about [self-hosting Zulip](https://zulip.com/self-hosting/).
- **Using Zulip without setting up a server**. Learn about [Zulip
Cloud](https://zulip.com/zulip-cloud/) hosting options. Zulip sponsors free [Zulip
Cloud Standard](https://zulip.com/plans/) for hundreds of worthy
organizations, including [fellow open-source
projects](https://zulip.com/for/open-source/).
- **Participating in [outreach
programs](https://zulip.readthedocs.io/en/latest/contributing/contributing.html#outreach-programs)**
like [Google Summer of Code](https://developers.google.com/open-source/gsoc/).
- **Supporting Zulip**. Learn about all the ways you can [support
Zulip](https://zulip.com/help/support-zulip-project), including contributing
financially, and helping others discover it.
You may also be interested in reading our [blog](https://blog.zulip.org/), and
following us on [LinkedIn](https://www.linkedin.com/company/zulip-project/),
[Mastodon](https://fosstodon.org/@zulip), and [X](https://x.com/zulip).
Zulip is distributed under the
[Apache 2.0](https://github.com/zulip/zulip/blob/main/LICENSE) license.