Launches
Coming soon
Upcoming launches to watch
Launch archive
Most-loved launches by the community
Launch Guide
Checklists and pro tips for launching
Products
News
Newsletter
The best of Product Hunt, every day
Stories
Tech news, interviews, and tips from makers
Changelog
New Product Hunt features and releases
Forums
Forums
Ask questions, find support, and connect
Streaks
The most active community members
Events
Meet others online and in-person
Advertise
Subscribe
Sign in
Mattermost
Open source, on-premises, Slack alternative
4.0
•
7 reviews
•
1 shoutout
•
34 followers
Visit website
Team collaboration software
•
Remote workforce tools
•
Slack apps
Overview
Launches
3
Reviews
7
Shoutouts
1
Team
Awards
Alternatives
More
Blog
•
Newsletter
•
Questions
•
Forums
•
Product Categories
•
Apps
•
About
•
FAQ
•
Terms
•
Privacy and Cookies
•
X.com
•
Facebook
•
Instagram
•
LinkedIn
•
YouTube
•
Advertise
© 2025 Product Hunt
Mattermost shoutouts
Testimonials from top launches
Trending
Andrew Kouri
used this to build
Starlight Partner Program
(78 points)
Really opposed to software with strong vendor lock-in. Mattermost gives us all the benefits of Slack, but open-source.
Helpful
Share
Report
4mo ago