Zulip

San Francisco, CA, USA
2016
  |  By Tim Abbott
We’re excited to announce the release of Zulip Server 9.0, containing hundreds of new features and bug fixes! Zulip is an open-source team chat application designed for seamless remote and hybrid work. With conversations organized by topic, Zulip is ideal for both live and asynchronous communication. Zulip’s 100% open-source software is available as a cloud service or a self-hosted solution, and is used by thousands of organizations around the world.
  |  By Tim Abbott
Last week, Slack’s users realized that under the company’s terms of service, their private data could be used to train artificial-intelligence models. This came as a shock: chat messages convey sensitive company data, and LLMs(large language models, the category of AI models that includes ChatGPT) are known to leak the data they are trained on.
  |  By Alya Abbott
Today is my three-year anniversary as the product leader for Zulip, the organized team chat product. When I left my job as a data science manager at Lyft, the career change felt like an experiment. Now, I’ve been reflecting on why it’s hard to imagine working on anything else. I’ve never had much patience for technology that’s not doing what I need it to do. Confusing interfaces drive me crazy.
  |  By Alya Abbott
This summer, 13 contributors completed the Google Summer of Code(GSoC) program with the Zulip development community. This was the 8th consecutive year that Zulip participated in GSoC; over 100 contributors have now completed one of our formal internship programs, primarily through Google Summer of Code and Outreachy. Our welcoming community is fully committed to helping bring up the next generation of open-source contributors from a wide range of backgrounds.
  |  By Tim Abbott
On Friday last week, we announced Zulip 8.0 and some big pricing changes for Zulip’s self-hosted customers. In response to feedback from our user community, today we are adding a new Basic plan for self-hosted Zulip installations. The Basic plan is priced at $3.50/user/month, and includes unlimited access to mobile push notifications. It does not include commercial support, which still requires purchasing a Business or Enterprise plan.
  |  By Tim Abbott
We’re excited to announce the release of Zulip Server 8.0, containing hundreds of new features and bug fixes! Zulip is an open-source team chat application designed to help people collaborate to solve any challenge. With conversations organized by topic, Zulip is ideal for both live and asynchronous communication. Fortune 500 companies, leading open-source projects, and thousands of other organizations use Zulip every day.
  |  By Tim Abbott
We’re excited to announce the release of Zulip Server 7.0, containing hundreds of new features and bug fixes! Zulip is an open-source team chat application designed to help people collaborate to solve any challenge. With conversations organized by topic, Zulip is ideal for both live and asynchronous communication. Fortune 500 companies, leading open-source projects, and thousands of other organizations use Zulip every day.
  |  By Alya Abbott
Last week, the open-core team chat platform Mattermost announced that“Mattermost Cloud Free will no longer be offered after July 26, 2023.” This likely came as an unpleasant surprise to users on that plan, as less than a month before, Mattermost’s pricing page featured the promise that the Cloud Free plan would be“free forever”.
  |  By Alya Abbott
As we head into the new year, we want to share some fun facts and highlights from 2022.
  |  By Tim Abbott
We’re excited to announce the release of Zulip Server 6.0, containing hundreds of new features and bug fixes! Zulip is an open-source team chat application designed to help people collaborate to solve any challenge. With conversations organized by topic, Zulip is ideal for both live and asynchronous communication. Fortune 500 companies, leading open-source projects, and thousands of other organizations use Zulip every day.
  |  By PyCon 2018
Python now offers static types! Companies like Dropbox and Facebook, and open-source projects like Zulip, use static types (with PEP 484 and mypy) to make Python more productive and fun to work with — in existing codebases from 40k lines to 4 million, in Python 2 and 3, and while preserving the conciseness and flexibility that make Python a great language in the first place. I’ll describe how.
  |  By Aswin vb
Omega-bot is a zulip chat bot into which lot of features are integrated.
  |  By SF Python
Rich Gupta presents specific, reusable techniques used to build an open source project and make the community successful.

The world’s most productive group chat. Zulip combines the immediacy of Slack with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.

Zulip is 100% open source software, built by a vibrant community of hundreds of developers from all around the world. With 120,000 words of developer documentation, a high quality code base, and a welcoming community, it’s easy to extend or tweak Zulip.

Zulip is used by open source projects, Fortune 500 companies, large standards bodies, and others who need a real-time chat system that allows users to easily process hundreds or thousands of messages a day.