Trying to decide between Slack and Mattermost? Both are industry-leading solutions, but which one is the best fit for your business? In this detailed comparison, we evaluate their features, pricing, ease of use, and customer support to help you make an informed choice. Whether you need advanced automation, better scalability, or user-friendly interfaces, this guide breaks down everything you need to know to select the right software for your needs.
Explore other software products that may fit your needs before making a final choice.
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Compare ratings, pricing, descriptions, buyer fit, integrations, category features, product details, alternatives, and SoftwareWorld’s final conclusion with Slack on the left and Mattermost on the right.
Slack
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Mattermost
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See ratings, free-trial availability, starting price, and a short description for each product in two dedicated columns.
Software
Slack is a communication platform designed for teams, offering a streamlined way to collaborate. It organizes conversations into channels, allowing users to focus on specific topics or projects. Direct messaging...
Read more about Slack
Software
Mattermost is an open source messaging and collaboration platform built to provide teams with secure, scalable communication tools for real-time chat, file sharing, and workflow coordination. It offers channels, direct...
Read more about MattermostCompare problem it solves, core use cases, target users, industry fit, key features, and USP for both products in two dedicated columns.
Buyer fit
Facilitates Team Communication And Collaboration In Real-time
Streamline Team Communication And Collaboration Effortlessly
Buyer fit
Insecure Or Fragmented Team Communication Across Tools
Open Source Secure Messaging And Team Collaboration
Open any shared category to compare the features selected under that category for both products.
Features shown here belong only to the Collaboration Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Project Management | Listed | Listed |
| Screen Sharing | Listed | Listed |
| Drag & Drop | Listed | Listed |
| @mentions | Listed | Listed |
| Communication Management | Listed | Listed |
| Discussions/Forums | Listed | Listed |
| Commenting/Notes | Listed | Listed |
| File Sharing | Listed | Listed |
| Real Time Notifications | Listed | Listed |
| Calendar Management | Listed | Listed |
| Video Conferencing | Listed | Listed |
| Chat/Messaging | Listed | Listed |
| Version Control | Listed | Listed |
| Task Management | Listed | Listed |
| Contact Management | Listed | Listed |
| Document Management | Listed | Listed |
| Task Progress Tracking | Listed | Listed |
| Content Management | Listed | Listed |
| Collaboration Tools | Listed | Listed |
| Alerts/Notifications | Listed | Listed |
| Task Scheduling | Listed | Listed |
| To-Do List | Listed | Listed |
| Prioritization | Listed | Listed |
| Tagging | Listed | Listed |
| Assignment Management | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Team Communication Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| File Sharing | Listed | Listed |
| Document Management | Listed | Listed |
| Meeting Management | Listed | Listed |
| Progress Tracking | Listed | Listed |
| Real-Time Chat | Listed | Listed |
| Mobile Access | Listed | Listed |
| Search/Filter | Listed | Listed |
| Content Management | Listed | Listed |
| Discussions/Forums | Listed | Listed |
| Real Time Updates | Listed | Listed |
| Reminders | Listed | Listed |
| Surveys & Feedback | Listed | Listed |
| Video Conferencing | Listed | Listed |
| Drag & Drop | Listed | Listed |
| @mentions | Listed | Listed |
| Alerts/Notifications | Listed | Listed |
| Collaboration Tools | Listed | Listed |
| Access Controls/Permissions | Listed | Listed |
| Audio Calls | Listed | Listed |
| Task Management | Listed | Listed |
| Calendar Management | Listed | Listed |
| Contact Management | Listed | Listed |
| Project Management | Listed | Listed |
| File Management | Listed | Listed |
| Email Management | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Community Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Group Management | Listed | Listed |
| Event Management | Listed | Listed |
| Activity Dashboard | Listed | Listed |
| Content Management | Listed | Listed |
| Calendar Management | Listed | Listed |
| @mentions | Listed | Listed |
| Ideation | Listed | Listed |
| Website Management | Listed | Listed |
| Drag & Drop | Listed | Listed |
| User Management | Listed | Listed |
| Feedback Management | Listed | Listed |
| Membership Management | Listed | Listed |
| Engagement Tracking | Listed | Listed |
| Email Management | Listed | Listed |
| Discussions/Forums | Listed | Listed |
| Member Directory | Listed | Listed |
| Activity Tracking | Listed | Listed |
| Filtering | Listed | Listed |
| Alerts/Notifications | Listed | Listed |
| Chat/Messaging | Listed | Listed |
| Multi-Language | Listed | Listed |
| Knowledge Base Management | Listed | Listed |
| Social Media Integration | Listed | Listed |
| Moderation | Listed | Listed |
| Communication Management | Listed | Listed |
| Contact Database | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Productivity Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Collaboration Tools | Listed | Listed |
| Task Scheduling | Listed | Listed |
| Notes Management | Listed | Listed |
| Alerts/Notifications | Listed | Listed |
| Email Management | Listed | Listed |
| File Sharing | Listed | Listed |
| Calendar Management | Listed | Listed |
| Chat/Messaging | Listed | Listed |
| Assignment Management | Listed | Listed |
| Activity Dashboard | Listed | Listed |
| Prioritization | Listed | Listed |
| Presentation Tools | Listed | Listed |
| Task Management | Listed | Listed |
| Single Sign On | Listed | Listed |
| Progress Tracking | Listed | Listed |
| Secure Data Storage | Listed | Listed |
| Project Management | Listed | Listed |
| Document Management | Listed | Listed |
| Office Suite | Listed | Listed |
| To-Do List | Listed | Listed |
| Tagging | Listed | Listed |
| Business Process Automation | Listed | Listed |
| Productivity Tools | Listed | Listed |
| Team Collaboration | Listed | Listed |
| Content Creation | Listed | Listed |
| Productivity Analysis | Listed | Listed |
| Video Content | Listed | Listed |
| Audio Recording | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Internal Communications Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Employee Database | Listed | Listed |
| Activity/News Feed | Listed | Listed |
| Employee Photos | Listed | Listed |
| Newsletter Management | Listed | Listed |
| Blogs | Listed | Listed |
| Screen Sharing | Listed | Listed |
| Video Conferencing | Listed | Listed |
| Access Controls/Permissions | Listed | Listed |
| Meeting Management | Listed | Listed |
| Real-Time Chat | Listed | Listed |
| Survey/Poll Management | Listed | Listed |
| Chat/Messaging | Listed | Listed |
| Alerts/Notifications | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Remote Work Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Softphone | Listed | Listed |
| Video Conferencing | Listed | Listed |
| Meeting Management | Listed | Listed |
| Remote Support | Listed | Listed |
| Communication Management | Listed | Listed |
| Time Zone Tracking | Listed | Listed |
| Third-Party Integrations | Listed | Listed |
| Electronic Signature | Listed | Listed |
| Live Chat | Listed | Listed |
| Video Chat | Listed | Listed |
| Task Management | Listed | Listed |
| Workflow Management | Listed | Listed |
| Collaboration Tools | Listed | Listed |
| Access Controls/Permissions | Listed | Listed |
| Progress Tracking | Listed | Listed |
| Employee Activity Monitoring | Listed | Listed |
| Reporting & Statistics | Listed | Listed |
| Document Management | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Screen Sharing Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Annotations | Listed | Listed |
| Desktop/Browser Sharing | Listed | Listed |
| Mobile Screen Sharing | Listed | Listed |
| Real Time Screen Sharing | Listed | Listed |
| Presenter Control Management | Listed | Listed |
| Screen Capture | Listed | Listed |
| Multi-Participant Screen Sharing | Listed | Listed |
| Targeted/Locked Screen Sharing | Listed | Listed |
| Screen Mirroring | Listed | Listed |
| Screen Recording | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Unified Communications Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Reporting & Statistics | Listed | Listed |
| Call Routing | Listed | Listed |
| Mobile Access | Listed | Listed |
| Contact Management | Listed | Listed |
| SMS Messaging | Listed | Listed |
| Voice Mail | Listed | Listed |
| Multi-User Collaboration | Listed | Listed |
| Two-Way Audio & Video | Listed | Listed |
| File Sharing | Listed | Listed |
| Multi-Channel Communication | Listed | Listed |
| Call Recording | Listed | Listed |
| Screen Sharing | Listed | Listed |
| Task Management | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Features shown here belong only to the Web Conferencing Software category.
| Feature | Slack | Mattermost |
|---|---|---|
| Two Way Audio & Video | Listed | Listed |
| HD Audio/Video | Listed | Listed |
| Mobile Access | Listed | Listed |
| Electronic Hand Raising | Listed | Listed |
| Meeting Management | Listed | Listed |
| Automatic Transcription | Listed | Listed |
| Collaboration Tools | Listed | Listed |
| Presentation Tools | Listed | Listed |
| Screen Sharing | Listed | Listed |
| Recording | Listed | Listed |
| Real-Time Chat | Listed | Listed |
| Private Chat | Listed | Listed |
| File Sharing | Listed | Listed |
| Presentation Streaming | Listed | Listed |
| Host Controls | Listed | Listed |
| Video Conferencing | Listed | Listed |
| Artificial Intelligence | Not listed | Not listed |
Compare deployment, device support, pricing model, support channels, and target company size for both products.
Explore alternatives to Slack and Mattermost before making a final choice.
Explore other software products that buyers may consider instead of Slack.
Explore other software products that buyers may consider instead of Mattermost.
This comparison brings public profile information, category-specific feature selections, review visibility, and clearly labeled sponsored placements together in a structured format so you can evaluate both products with confidence.
Each section keeps Slack and Mattermost in clearly separated columns so you can compare equivalent information without losing context.
Shared categories open into their own feature comparisons, helping you review use-case-specific capabilities rather than only broad product claims.
Sponsored products stay outside the detailed comparison, and paid placements are clearly labeled so the core comparison remains focused on Slack and Mattermost.
Profile pages, category pages, integrations, and alternatives are linked throughout the page so you can continue your research from the same comparison.
