Zulip is an open-source team chat platform that combines the immediacy of real-time chat with an email threading model. This page is for volunteer contributors to the Zulip open source project.
"Zulip’s unique threading saves me well over an hour a day in working with our distributed team of engineers and PMs across 7+ time zones. We tried Slack, Mattermost, and other team chat products that claim to support threading, and nothing handles synchronous and asynchronous communication so intuitively."




Read Zulip Reviews, Testimonials & Customer References from 25 real Zulip customers.
Browse Zulip Case Studies, Customer Success Stories, & Customer References from 8 businesses that use Zulip.