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Google Chat vs Mattermost: Which is Better in 2026?

Choosing between Google Chat and Mattermost comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: Mattermost wins this matchup. Microsoft Teams is our overall Communication pick. Microsoft Teams is our free Communication pick. Pick Google Chat if you need its specific feature set.

Methodology
Editor reviewed 604 user reviews compared Pricing checked Oct 2026

Short on time? Here's the quick answer

Based on published vendor pricing and features and on public review data, here's who should pick what:

Google Chat

AI-powered chat for teams of all sizes to connect, collaborate, and get more done.

Best for you if:

  • • You want workspace integration

Mattermost

Open-source team collaboration platform

Best for you if:

  • • You want a free tier before you commit
At a Glance
Google ChatGoogle Chat
MattermostMattermost
Starts at
$7/mo Google Workspace
Free Free plan
Category
Communication Productivity
Communication Team Chat
Rating
n/a4.3/5 G2 4.3 · Capterra 4.4 · SourceForge 4.3 604 reviews
Free plan
No Yes

Choose Google Chat or Mattermost?

Google Chat

Choose Google Chat if

  • You want workspace integration
  • You want free with Workspace
  • Budget matters ($7/mo vs Free)
Mattermost

Choose Mattermost if

  • You want a free tier before you commit
  • You want open source Slack alternative
  • You want self-hostable

In-Depth Analysis

Google ChatGoogle Chat

AI-powered chat for teams of all sizes to connect, collaborate, and get more done.

Good value

Google Chat's pricing is fair, offering a robust free tier for personal use.

Strengths

  • Pro: Workspace integration
  • Pro: Free with Workspace
  • Pro: Spaces for teams
  • Pro: Meet integration
  • Pro: Good search

Weaknesses

  • Con: Less features than Slack
  • Con: UI not intuitive
  • Con: App ecosystem limited
  • Con: Bot support basic
  • Con: Requires Workspace

Key features

Team messaging Spaces File sharing Google integration Threaded conversations Bot support

MattermostMattermost

Open-source team collaboration platform

Good value

Mattermost's pricing is fair, offering a generous Free tier for small teams.

Strengths

  • Pro: Open source Slack alternative
  • Pro: Self-hostable
  • Pro: Good for compliance
  • Pro: No per-user cloud cost
  • Pro: Customizable

Weaknesses

  • Con: Less polished than Slack
  • Con: Smaller integration library
  • Con: Self-hosting required for best value
  • Con: Learning curve
  • Con: Community smaller

Key features

Team collaboration Self-hosted Channels Integrations DevOps Open source

Pricing: Google Chat vs Mattermost

PlanGoogle ChatMattermost
Tier 1
Free
Free (Personal)
Free
Free
Tier 2
$7
Google Workspace
$10
Professional
Tier 3N/A
Custom
Enterprise

Pricing verified from each vendor's public pricing page. Compare in detail on Google Chat pricing and Mattermost pricing.

Key Takeaways

Mattermost

  • Free tier available
  • Our pick for this comparison

Google Chat

  • Choose if you want AI-powered chat for teams of all sizes to connect, collaborate, and get more done

The Bottom Line

Mattermost wins this matchup. Microsoft Teams is our overall Communication pick. Microsoft Teams is our free Communication pick.

Frequently Asked Questions

Is Google Chat or Mattermost better in 2026?

Mattermost wins this matchup. Microsoft Teams is our overall Communication pick. Microsoft Teams is our free Communication pick. Pick Google Chat for communication workflows (main strength: workspace integration). Pick Mattermost for communication workflows (main strength: open source Slack alternative).

What are Google Chat and Mattermost used for?

Google Chat: AI-powered chat for teams of all sizes to connect, collaborate, and get more done. Mattermost: Open-source team collaboration platform.

What does Google Chat cost vs Mattermost?

Google Chat's paid plans start at $7/mo (Google Workspace). Mattermost's paid plans start at Free (Professional).

What's the main difference between Google Chat and Mattermost?

Google Chat's main strength: workspace integration. Mattermost's main strength: open source Slack alternative.

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