Best Mattermost Alternatives in 2026
Updated Sep 15, 2026
Looking for alternatives to Mattermost? Here are 9 similar tools in the Communication & Chat category.
Why people look for a Mattermost alternative
- •UI feels dated and less polished than newer collaboration tools
- •Self-hosting adds operational overhead for upgrades, backups, and plugin management
- •Plugin ecosystem and integrations are more limited than Slack or Teams
To be fair to Mattermost: stable, flexible, and competitively priced platform; self-manageable, making it easier to investigate problems. If that's what matters most to you, it may still be the right call.
How we picked this list
The alternatives grid below is matched algorithmically: same category, ranked first by how many functional tags a tool shares with Mattermost, then by AIToolPundit's own user rating and page views. We don't currently pull in third-party review platforms (Capterra, G2, Trustpilot) — ratings shown are ours alone, not aggregated.
No listing can pay to rank higher on this page. Order here comes only from tag relevance and rating/views — unrelated to any paid placement elsewhere on the site.
9 more Communication & Chat tools like Mattermost
Where work happens
Video conferencing & online meetings
Voice, video, and text chat
Chat, meet, call, collaborate
Collaborative inbox for teams that run on email, chat, and shared workflows.
Real-time audience engagement with live polls, Q&A, and feedback for meetings and events
Innovation workspace where teams and AI plan, diagram, and build together on one canvas