Mattermost vs Microsoft Teams

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Mattermost vs Microsoft Teams: What are the differences?

What is Mattermost? Open-source, self-hosted, Slack alternative. Mattermost is modern communication from behind your firewall.

What is Microsoft Teams? Chat-based workspace in Office 365. See content and chat history anytime, including team chats with Skype that are visible to the whole team. Private group chats are available for smaller group conversations.

Mattermost and Microsoft Teams can be primarily classified as "Group Chat & Notifications" tools.

Some of the features offered by Mattermost are:

  • All your team communication in one place, searchable and accessible anywhere
  • Slack-compatible, not Slack-limited. Imports Slack channels, users and themes. Offers Slack-compatible webhooks and integrations including Hubot, Jenkins, GitLab and others
  • Self-host ready with System Console and IT admin tools for managing dozens of team sites. Installs with Linux binary, plus Docker, Heroku, AWS, Azure and Cloud Foundry options

On the other hand, Microsoft Teams provides the following key features:

  • All your content, tools, people, and conversations are available in the team workspace
  • Enjoy built-in access to SharePoint, OneNote, and Skype for Business
  • Work on documents right in the app

"Open source" is the top reason why over 54 developers like Mattermost, while over 4 developers mention "Free" as the leading cause for choosing Microsoft Teams.

Mattermost is an open source tool with 15.4K GitHub stars and 3.14K GitHub forks. Here's a link to Mattermost's open source repository on GitHub.

According to the StackShare community, Microsoft Teams has a broader approval, being mentioned in 46 company stacks & 32 developers stacks; compared to Mattermost, which is listed in 38 company stacks and 24 developer stacks.

Decisions about Mattermost and Microsoft Teams
Christopher Semmler

Mattermost sports higher performance, uses Postgres, is a pure server side application not using up too much of system resources on the client side, and gives an overall enterprise grade impression in general.

Updates go smooth without a hassle, everything is organised logically, and the integration with the OS is absolutely stable. Apart from that, the underlying runtimes and code are mature, proven and stable.

The developers are maybe a bit more cautious in regard to introducing new features, but they maintain a stable experience, not breaking the codebase in order to hastily implement bells and whistles, which are not yet ready for production. Documentation and debugging are fantastic, so running this in enterprise production environment is absolutely approved of.

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As it is the communication tool chosen for the course, our team will be using Slack to monitor the course announcements from our instructor as well as to communicate with the instructor and industry partners. The tool for communicating within the team will be Microsoft Teams. Microsoft Teams enables the team to share documents and edit them synchronously(Google Drive is not an option due to one team member's location). Since it also provides a group chat feature, we chose to use it as our communication tool to avoid using too many softwares.

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Hirotaka Ishihara
Undergrad at University of Toronto · | 3 upvotes · 106.1K views

Communication We have chosen two tools for our team communication.

  • Slack

We choose Slack since all of us are familiar with this communication tool. We have a private channel for our team Sphinx for text messages. We added Github apps inside our private channel for repo update notifications. Furthermore, we could contact the subject matter experts within the workspace DCSIL directly for the issues we meet.

  • Microsoft Teams

We use Microsoft Teams for virtual meetings for its fast connection speed. In addition, the call feature in Slack is a paid feature, and we could have virtual meetings and share screens for free in Microsoft Teams.

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Mohammad Hossein Amri
Chief Technology Officer at Axceligent Solutions · | 3 upvotes · 142.4K views

we were using slack and at the same time we had a subscription with office 365. after a while we hit the slack free limitation quota. and it got annoying. the search ability was useless in free tier. and more annoying whenever you search, it opens a webpage and doesn't do it in the app.

on mobile there were many cases that I didn't get notification of important discussions. rooms was the way to separate a talk. but it become tedious. each time for a new subject that you wanted to discuss, you needed to add all the team members into a new room. and after a while the room goes silent. you will end up with a tons of not-in-use rooms that you don't want to clean up them for history purposes. also the slack UI for sub discussion is very stupid. if someone forget to check the checkbox to post the subdiscussion in the main discussion thread, other team members even won't notice such discussion is in progress.

we was paying for office 365 and thought why not give the teams a shot. we won't be in worth situation than we are. we moved to teams and we loved it instantly, we had a separate tab aggregated all the files upload. we could reply on other talk. no need of creating a new room. this way room belongs to a team and not a certain topic. our sub discussion was visible to the whole team. enjoyed integration with azure and unlimited history. the best part was integration with outlook. it was a full suit solution. our stats become busy on outlook meeting events. we get weekly analyse. we didn't need to host our wiki seperated. we've created wiki per team. the communication was much more fun.

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Pros of Mattermost
Pros of Microsoft Teams
  • 54
    Open source
  • 38
    On-premise deployment
  • 25
  • 22
    Built using golang
  • 19
    Fast and easy to use
  • 14
    Full text search
  • 13
    Docker image provided for easy setup
  • 12
    Built using react
  • 11
    Search and data archiving
  • 9
    Very professional
  • 9
    Supports multiple teams
  • 8
    Keeps us focused, effective, concise
  • 7
    Webhooks support
  • 6
    Integration with Gitlab
  • 6
    Clean and simple look
  • 5
    Well documented
  • 5
    Use #Hashtags like Twitter
  • 3
    Import Slack logs
  • 3
    Reactive community and ease of use
  • 2
    Self managed data
  • 1
    Easy webhook integration
  • 1
    On-premises Deployment
  • 1
  • 1
    Slack-compatible integrations
  • 0
    On premise installation
  • 28
    Work well with the rest of Office 365 work flow
  • 23
    Mobile friendly
  • 19
  • 12
    Great integrations
  • 11
    Well-thought Design
  • 10
  • 8
    Easy setup
  • 6
    Unlimited users
  • 5
    Strong search and data archiving
  • 4
    Easy to integrate with
  • 4
    Multi domain switching support
  • 3
    Same interface on multiple platforms
  • 3
    Web interface
  • 2
    Great voice quality

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Cons of Mattermost
Cons of Microsoft Teams
  • 1
    Not compatible with Telegram keys, which used by FSB
  • 1
    Basic permissions only in enterprise edition
  • 1
    Custom sidewide themes only in enterprise
  • 1
    Many basic features are enterprise only
  • 1
    Less integrations and plugins than slack
  • 16
    Confusing UI
  • 12
    Bad performance on init and after quite a use
  • 9
    Bad Usermanagement
  • 6
    Can't see all members in a video meeting
  • 6
    No desktop client (only fat and slow electron app)
  • 5
    No Markdown Support
  • 5
    Unable to Mute users
  • 4
    Forced WYSIWYG
  • 4
    MIssing public channels
  • 4
    You don't really own your messages
  • 3
    Challenging Onboarding
  • 3
    Is bad
  • 3
    Stubborn, unused friendly
  • 3
    No linux support

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What companies use Mattermost?
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What are some alternatives to Mattermost and Microsoft Teams?
Imagine all your team communication in one place, instantly searchable, available wherever you go. That’s Slack. All your messages. All your files. And everything from Twitter, Dropbox, Google Docs, Asana, Trello, GitHub and dozens of other services. All together.
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. It is a great solution for communities and companies wanting to privately host their own chat service or for developers looking forward to build and evolve their own chat platforms.
Riot brings custom tags to all browsers. Think React + Polymer but with enjoyable syntax and a small learning curve.
HipChat is a hosted private chat service for your company or team. Invite colleagues to share ideas and files in persistent group chat rooms. Get your team off AIM, Google Talk, and Skype — HipChat was built for business.
Free chat rooms for your public repositories. A bit like IRC only smarter. Chats for private repositories as well as organisations.
See all alternatives