Best Mattermost Alternatives in 2026
Open-source team collaboration
What is Mattermost?
Self-hosted, open-source alternative to Slack. AI integrations and enterprise security.
Looking for alternatives? Here are the best Productivity tools rated by our team of 2026 reviewers.
Top 12 Alternatives to Mattermost
1Password
Password manager for teams
Choose 1Password if you want a tool that carries a higher user rating (4.7 vs 4.3/5).
Memos
Self-hosted note-taking service
Choose Memos if you want a tool that offers a completely free tier that Mattermost doesn't.
Bitwarden
Open-source password manager
Choose Bitwarden if you want a tool that carries a higher user rating (4.6 vs 4.3/5).
Cal.com
Open-source scheduling infrastructure
Choose Cal.com if you want a tool that is top-rated in the productivity space (4.5/5).
Rocket.Chat
Open-source communications platform
Choose Rocket.Chat if you want a tool that shares key capabilities with Mattermost.
Hebo Gateway
Embeddable AI gateway with OpenAI-compatible API
Choose Hebo Gateway if you want a tool that offers a completely free tier that Mattermost doesn't.
yt-dlp
Download videos from anywhere
Choose yt-dlp if you want a tool that offers a completely free tier that Mattermost doesn't.
Slack
AI-powered team messaging
Choose Slack if you want a tool that carries a higher user rating (4.6 vs 4.3/5).
Microsoft Teams
AI-powered workplace collaboration
A solid productivity tool and well-regarded alternative to Mattermost.
ToolJet
AI-native internal tools platform
A solid productivity tool and well-regarded alternative to Mattermost.
Immich
Self-hosted photo management
Choose Immich if you want a tool that offers a completely free tier that Mattermost doesn't.
Workday
Enterprise HR & finance cloud
A solid productivity tool and well-regarded alternative to Mattermost.
Quick Comparison Table
| Tool | Pricing | Rating | Category | Link |
|---|---|---|---|---|
| 💬Mattermostoriginal | Freemium | 4.3 / 5 | productivity | View → |
| 🔐1Password | Paid | 4.7 / 5 | productivity | View → |
| 📝Memos | Free | — | productivity | View → |
| 🔑Bitwarden | Freemium | 4.6 / 5 | productivity | View → |
| 📆Cal.com | Freemium | 4.5 / 5 | productivity | View → |
| 🚀Rocket.Chat | Freemium | 4.2 / 5 | productivity | View → |
| 🚪Hebo Gateway | Free | 4.3 / 5 | productivity | View → |
| 📥yt-dlp | Free | — | productivity | View → |
| 💬Slack | Freemium | 4.6 / 5 | productivity | View → |
| 👥Microsoft Teams | Freemium | 4.4 / 5 | productivity | View → |
About Productivity Tools
AI productivity tools automate repetitive tasks, manage schedules, summarise long documents, and help individuals and teams reclaim hours every week. They span note-taking assistants, meeting summarisers, email drafters, task managers, and knowledge-base builders. The best ones integrate into your existing stack — Notion, Slack, Gmail, and Calendar — to eliminate context-switching.
AI Indigo tracks 13+ Productivity tools, giving you a complete view of all Mattermost alternatives in this space.
Browse all Productivity tools →Frequently Asked Questions
What is the best free alternative to Mattermost?
Memos is a top-rated free alternative to Mattermost. Self-hosted note-taking service. Other free options include Hebo Gateway and yt-dlp.
Is 1Password better than Mattermost?
1Password is rated 4.7/5 — slightly higher than Mattermost's 4.3/5 — making it a strong contender. Password manager for teams The best choice ultimately depends on your specific workflow, team size, and budget.
What is the most affordable alternative to Mattermost?
yt-dlp is completely free, making it the most budget-friendly productivity alternative to Mattermost. Download videos from anywhere Hebo Gateway and yt-dlp are also free options worth exploring.
Alternatives Pages
Each alternative also has its own alternatives page — explore the full landscape of tools in this category.