Zulip

At Zulip, we’re out to build the world’s best collaboration platform, and we’re committed to keeping it 100% open source. If you’ve been using Zulip, love the product and its innovative threading model, and want to help share it with the world, please consider supporting us.

An important part of Zulip’s mission is ensuring that worthy organizations, from programming-language developers to research communities, are able to use Zulip whether or not they have funding.  For this reason, we sponsor Zulip Cloud Standard hosting for open source projects, non-profits, education, and academic research. This program has grown exponentially since its inception; today we are proud to fully sponsor Zulip hosting for several hundred organizations. Support from the community will help us continue to afford these programs as their popularity grows.

Zulip is stewarded by the Zulip Foundation, with a mission of developing the best possible team chat experience, with a particular focus on public-interest organizations and communities. The Zulip Foundation fully owns Kandra Labs, the company responsible for hosting, supporting, and improving Zulip for use across all industries.

As of May 2026, the Kandra Labs team includes 12 amazing people who have an average of over 4 years of professional experience working on Zulip, and almost 25,000 Zulip commits between them. Our team has shipped major improvements end-to-end across every facet of the product.

We've long lived by these values:

- Building software that will always be there for our users.
- Commitment to the mission, which shapes how we structure Zulip's governance and fund the work.
- Doing right by our users as a trustworthy, transparent vendor.
- Keeping Zulip 100% open source, and making it easy to self-host.
- Investing in community and mentorship, and helping bring up the next generation of open-source

contributors from a wide range of backgrounds.

- Supporting other worthy organizations through our sponsorship program.

Please consider promoting Zulip and other free and open-source applications in your community, at your job, and on social media. We greatly appreciate your support!