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Zulip logo.svg
Zulip screenshot of demo content.png
Original author(s)Jessica McKellar and Tim Abbott
Developer(s)Kandra Labs, Inc. [1]
Stable release
Repository Edit this at Wikidata
Written inPython, JavaScript (web frontend), React Native (iOS and Android), Electron (desktop apps)
Operating systemWindows, macOS, Linux, iOS, Android, Windows Phone
TypeCollaborative software
LicenseApache License 2.0

Zulip is a chat and collaborative software created by Jessica McKellar and Tim Abbott in 2012.[2][3]


Zulip was originally developed as proprietary software by a startup called Zulip, Inc., based in Cambridge, Massachusetts. In 2014, while in private beta, the company was acquired by Dropbox.[3][4] In September 2015, Dropbox open-sourced it under the Apache License.[5] Today, it is a leading open source alternative to Slack or HipChat,[6] with over 29,000 commits contributed by 450 people.[7]

See also[edit]


  1. ^ ""The Zulip team"".
  2. ^ "This Is What Impactful Engineering Leadership Looks Like". First Round Review. First Round Capital. Retrieved March 19, 2015.
  3. ^ a b Perez, Sarah (March 17, 2014). "Dropbox Acquires Zulip, A Stealthy Workplace Chat Solution Still In Private Beta". TechCrunch.
  4. ^ Kerr, Dara (March 17, 2014). "Dropbox gets chatty and buys workplace chat service Zulip". CNET.
  5. ^ Dove, Jackie (September 26, 2015). "Dropbox releases its chat app Zulip under an open-source license". thenextweb.com.
  6. ^ Ravenscraft, Eric (September 27, 2015). "Zulip is a Free Team Chat Client From Dropbox You Can Host Yourself". Life Hacker.
  7. ^ ""The Zulip GitHub"".