What are the key differences between Gitter and Mattermost?

Compare Gitter and Mattermost side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are Gitter and Mattermost scored?

Gitter has an AI score of 8.7/10 and Mattermost has an AI score of 7.8/10. Scores are based on features, user satisfaction, and overall quality analysis.

Gitter vs Mattermost 2026 — Compared

Gitter

Mattermost

WINNER Gitter

Gitter edges ahead with a score of 8.7/10 compared to 7.8/10 for Mattermost. While both are highly rated in their respec...

emoji_events WINNER

Gitter

8.7 Very Good

Team Collaboration Get Gitter open_in_new

Mattermost

7.8 Good

Communication Get Mattermost open_in_new

Gitter Free plan available

payments

Mattermost From $5/user/month for the paid plan Free plan available

psychology AI Verdict

Gitter edges ahead with a score of 8.7/10 compared to 7.8/10 for Mattermost. While both are highly rated in their respective fields, Gitter demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Gitter

verified Confidence: Low

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description Overview

Gitter

Gitter is an open-source chat and collaboration tool designed for developers. It offers real-time messaging, file sharing, and issue tracking in a single platform. Gitter's features include topic-based conversations, integration with popular tools like GitHub and Bitbucket, and support for custom themes.

Mattermost

Mattermost is the premier open-source alternative to Slack, designed specifically for teams that prioritize security, privacy, and control. It offers a familiar interface that makes migrating from Slack effortless. Because it is self-hosted, your data stays entirely within your own infrastructure, making it a favorite for organizations in regulated industries like finance, healthcare, and governme...