What are the key differences between Mattermost and Nextcloud?

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

How are Mattermost and Nextcloud scored?

Mattermost has an AI score of 8.8/10 and Nextcloud has an AI score of 8.4/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

Mattermost vs Nextcloud 2026 - Compared

Mattermost

Nextcloud

WINNER Mattermost

Mattermost edges ahead with a score of 8.8/10 compared to 8.4/10 for Nextcloud. While both are highly rated in their res...

emoji_events WINNER

Mattermost

8.8 Excellent

Communication Get Mattermost open_in_new

Nextcloud

8.4 Excellent

Cloud Storage Get Nextcloud open_in_new

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

payments

Nextcloud From Free or N/A Free plan available

psychology AI Verdict

Mattermost edges ahead with a score of 8.8/10 compared to 8.4/10 for Nextcloud. While both are highly rated in their respective fields, Mattermost demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Mattermost

verified Confidence: Low

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description Overview

Mattermost

Mattermost is an open-source, self-hosted Slack alternative focused on security and data control. It offers similar features to Slack, including channels, direct messaging, and file sharing, but with the added benefit of complete control over your data. This makes it ideal for organizations with strict compliance requirements or concerns about data privacy. Mattermost's self-hosting capabilities a...

Nextcloud

Nextcloud is a self-hosted, open-source file sync and collaboration platform, giving users complete control over their data. It offers a wide range of features, including file sharing, calendar synchronization, contacts management, and collaborative document editing. The self-hosted nature provides enhanced privacy and security, as users are responsible for managing their own servers. While requi...