openslack
The premium Open Source alternative to Slack
🎯 Best for:Teams requiring a customizable, self-hosted chat environment.
What is openslack?
A real-time communication platform featuring channels, direct messaging, and integrated video calls. It is built with a modern stack including Next.js for the frontend and Supabase for real-time backend functionality.
Tech Stack
TypeScriptTeam Collaboration
Why openslack?
- • Modern React-based UI
- • Real-time sync via Supabase
- • Integrated video conferencing
Limitations
- • Requires Supabase setup
- • Fewer app integrations
- • No official mobile apps yet
3/12/2026
Last Update
0
Forks
0
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to openslack instantly boosts your runway.
Competitor Cost
-$1,050
/ year (est. based on Slack)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%