Powerful group chat
First class threading on top of everything you could want from real-time chat.
Beautiful messaging
MARKDOWN OPTIMIZED FOR CHAT
Express your ideas clearly with bulleted lists, bold, italics, and much more. Zulip even supports discussing math with LaTeX.
EMOJI AND EMOJI REACTIONS
Have fun expressing yourself with emoji!
INLINE IMAGE, VIDEO, AND TWEET PREVIEWS
Send a link and we'll automatically generate a preview; click the preview to see it at full scale.
DRAG-AND-DROP FILE UPLOADS
Drag a file into the compose box and we'll upload and preview it for you. Sharing and discussing work with team mates has never been easier.
CODE AND QUOTE BLOCKS
Discuss code with ease using Markdown code blocks (and syntax highlighting). And discuss blocks of text with ease with block quotes.
CUSTOMIZABLE AUTOMATIC LINKIFICATION
Customize Zulip’s markup to automatically link back to your issue tracker or GitHub when you type “#1235” or a commit ID.
Highly configurable notifications
@-mentions
Stream-wide announcements
Desktop notifications
Audible notifications
Emails for important missed messages
Alert words
Optional weekly digest emails
Keyboard Shortcuts
Communicate as efficiently as you use your favorite text editor. Anything you can do with a mouse, you can do even faster from the keyboard. Learn more about keyboard shortcuts.
Apps, Integrations, and API
INTEGRATIONS
Get alerts and updates from your favorite services with off-the-shelf integrations for Trac, Nagios, GitHub, Jenkins, and more.
API
Want to roll your own notifications? We've got a dead-simple RESTful API and Python bindings that will make integrations—both sending and receiving—a snap!
MOBILE APPS
Keep up while on the go with our native quality iOS and Android apps.
DESKTOP APPS
Prefer Zulip in its own window and rich, OS-level notifications? Enjoy Zulip on your desktop.
And everything else you need...
ENTERPRISE-GRADE SECURITY
Zulip is used by some of the most security-conscious organizations in the world.
FULL-TEXT FULL-HISTORY SEARCH
Search is both snappy and smart, helping you look for text, people, and threads of conversation, with advanced search operators for fine-grained control.
HISTORY
Join a stream and see its history, so even new team members are never out of the loop.
STARRED MESSAGES
Keep a todo list of messages to come back to, or keep track of interesting conversations.
STATISTICS
Zulip has a powerful set of analytics available to help you see how your organization communicates.
ONE-ON-ONE AND GROUP PRIVATE CONVERSATIONS
Lightweight private conversations with one or as many people as you need.
TEAM AVAILABILITY
See who is currently online at a glance.
PRIVATE STREAMS
Enjoy the benefits of threaded conversations while controlling your audience and privacy.
PERSISTENCE
We're always receiving messages for you, even when you're logged out or away from your computer.
MESSAGE EDITING
Don't worry, you can always fix that typo, either in the body of message or its topic.
TYPING NOTIFICATIONS
Know when other users are composing messages to you.
SAVED DRAFTS
Zulip's drafts make it easy to write longer messages without worrying about losing your work.
ACCESSIBILITY
Zulip follows best practices for accessibility, and has been validated using popular accessibility auditing tools.
CONVERSATIONS THREADED BY TOPIC
Participate in several conversations with the same group at once, without getting lost or overwhelmed.
CATCH UP IN NO TIME
With topics, hotkeys and snappy performance, usefully reviewing hundreds of messages takes just minutes.
FULLY INTERNATIONALIZED
The Zulip UI is fully internationalized and has been translated into over a dozen languages.
CUSTOMIZABLE LOGIN AND REGISTRATION
Customize the available authentication methods and customize the login and registration pages for your organization using Markdown.
VIDEO CALLS
Create and join video calls with a single click. Powered by your choice of Zoom, Jitsi, or Google Hangouts.
SLACK/HIPCHAT/GITTER IMPORT
Import an existing Slack, HipChat, Stride, or Gitter workspace into Zulip.
CUSTOM PROFILE FIELDS
Use Zulip to store directory information, links to social media profiles, food preferences, or anything else.
GUESTS
Guests cannot see or join streams unless they are explicitly added. Perfect for partners, vendors, and temporary contractors.
CUSTOM BRANDING
Use your logo instead of Zulip's in the desktop and webapp.
INTEGRATE WITH IRC, MATRIX, OR SLACK
Two way integrations with IRC and Matrix, and one way integration with Slack.
YOUR FEATURE HERE
Zulip is open source, so if something important for your use case is missing, you can make it happen!