OSS Discovery

US
United States
BACKEND & API
SELF-HOSTABLE
ACTIVELY MAINTAINED
FREEMIUM
Zulip

ZULIP

Zulip is a premium open-source team chat platform blending real-time collaboration and asynchronous communication via email-inspired topic threads. Trusted by Fortune 500 firms and open-source projects, it offers cross-platform apps, robust integrations, and scalable cloud/self-hosted solutions for seamless, productive teamwork.

GITHUB STARS
25k
+12% this month
FORKS
9.8k
Active community
LAST PUSH
Apr 24, 2026
High momentum
WATCHERS
370
Tracking updates
LICENSE
Apache-2.0
Commercial use
Zulip is a premium open-source team chat platform blending real-time collaboration and asynchronous communication via email-inspired topic threads. Trusted by Fortune 500 firms and open-source projects, it offers cross-platform apps, robust integrations, and scalable cloud/self-hosted solutions for seamless, productive teamwork.

High Performance

Built for speed and minimal overhead.

Self-hostable

Docker, Kubernetes, or bare metal

Developer Native

Programmable via any language workflow

SUPPORTED LANGUAGES

Python
Python
TypeScript
TypeScript
JavaScript
JavaScript
CSS
CSS
HTML
HTML
MDX
MDX
Handlebars
Handlebars
Shell
Shell
Puppet
Puppet
Astro
Astro
Perl
Perl
Ruby
Ruby
Dockerfile
Dockerfile
Lua
Lua
Emacs Lisp
Emacs Lisp

VISUAL INTERFACE

Screenshot 1
Screenshot 2
Screenshot 3

The Quick Glance

Status
Active
Category
Backend & API
Pricing
Freemium
Self-Hosted
Yes
Available on
Web
Latest Release
11.6
Mar 31, 2026

Relative Standing — across 1,284 tools

STARS25k
Top 15% globally
FORKS9.8k
Top 2% in Open Source
ACTIVITYHigh
Top 26% Activity
WATCHERS370
Top 9% Community