Best Mattermost Alternatives in 2026

Simple team messaging with a built-in task manager for small teams.

• Built-in task management (Teambook)
• Very affordable for small teams

Voice, video, and text community platform popular with dev and tech teams.

• Always-on voice channels
• Very generous free tier

Team messenger with built-in productivity tools and polls for SMBs.

• Built-in polls, reminders, and to-dos
• More affordable than Slack

Google's video calling app built into Google Workspace for frictionless meetings.

• No download required for guests
• Tight Google Calendar integration

All-in-one collaboration suite with chat, docs, calendar, and video built in.

• All-in-one suite with generous free tier
• Collaborative docs and sheets built in

Microsoft's unified hub for chat, meetings, and Office 365 file collaboration.

• Deep Microsoft 365 integration
• Enterprise-grade security and compliance

Free team messaging app with unlimited message history for budget-minded teams.

• Unlimited message history on free plan
• Very affordable paid tiers

Open-source team messaging you can self-host for full data control.

• Fully self-hostable and open-source
• Strong compliance and data sovereignty

Async-first team communication organized in threads, not a firehose.

• Thread-first keeps context intact
• Calm, non-urgent communication culture

Cisco's enterprise-grade unified communications suite with AI meeting features.

• Enterprise-grade security and compliance
• Deep Cisco hardware integration

The most-used video conferencing platform for meetings and webinars.

• Best-in-class meeting reliability
• Breakout rooms and webinars