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Mattermost VS Slack

Compare Mattermost VS Slack and see what are their differences

Mattermost is an open source alternative to Slack.

A messaging app for teams who see through the Earth!
Mattermost Landing Page
Mattermost Landing Page
Slack Landing Page
Slack Landing Page

Mattermost details

Team Collaboration Work Collaboration Web And Video Conferencing Group Messaging Instant Messaging
Pricing URL-

Slack details

Communication Group Chat & Notifications Chat
Pricing URL Official Slack Pricing  

Mattermost videos

Mattermost - An Open Source, Self Hosted, Slack Chat Alternative

More videos:

  • - Demo of Mattermost Basics | Features end users love
  • - Getting Started with Mattermost

Slack videos

Review: How & Why We Use Slack At Our Office

More videos:

  • - What is Slack?
  • - Slack App Tutorial: How & Why We Use SLACK For Our Remote Team

Category Popularity

0-100% (relative to Mattermost and Slack)


These are some of the external sources and on-site user reviews we've used to compare Mattermost and Slack

Mattermost Reviews

18 Best Discord Alternatives 2020 | Expert Reviews
However, to set up Mattermost, you must have technical knowledge. Since it is running on your servers, you will have to maintain the instance. Also, you will need to upgrade Mattermost when new releases are out.
Top 10 Team Chat Software for a Self-Hosted environment specifically designed for Large Enterprises
Mattermost introduces itself as a ‘High Trust Messaging for the Enterprise’, and it is true. An exceptional self-hosted open source messaging platform that extends secure communication across the industries of all forms and sizes. It can be deployed on a private cloud within the premises of local servers. The organizations which are high on privacy-conscious believe...
10 Tried and True Telegram Alternatives
While you’ll need to deploy it on your server, Mattermost also provides a host of customization options across its web, desktop, and mobile apps – such as the ability to add encryption on both communication and server-level; custom branding and login page design; and the ability to customize the languages available in the UI.
Top 11+ Slack Competitors to look out for in 2020
Mattermost, as premium business chat software, is dedicated to providing business with premium collaboration solutions. The hybrid, slack competitors open source, the private cloud allows the paid users to avail a configurable, highly encrypted, and scalable messaging solutions across mobile, web, and PC.
Top 20 Skype for Business alternatives for 2019 and beyond
Mattermost is an open-source alternative to Skype for Business, so companies can host within their own protected environment. There’s a free trial to get you started, and enterprise-grade encryption.

Slack Reviews

Microsoft Teams Vs Clariti: Which one should you choose?
The main reason behind the sudden rise of Teams is it is being offered at no added cost to Office 365 users. This strategy paid for Teams as it was able to increase its market share and overtake its potential rival Slack in no time. Though Microsoft is not earning any revenue (they may actually be losing money in selling Teams), they are able to sustain due to their deep...
15 Best Instant Messaging Apps for Business
Clariti is a relatively new instant messaging app that has been gaining in popularity among small businesses and the startup community especially in the technology and media markets. A key reason for its success has been its ability to address issues that other long-standing tools like Slack and Teams have perpetuated with their chat-focused communication paradigm. Clariti...
18 Best Discord Alternatives 2020 | Expert Reviews
In my experience, Slack remains a better alternative to Discord. Slack has a very similar interface with functions that people who are familiar with Discord will feel “at home” with. The Slack platform is highly extendable. Apps can be downloaded to your desktop and smartphone, or you can access the system in your browser. Set up channels, groups, and even automate several...
Flock Vs Slack : Which tool is more easy to use and highly productive ?
Though there are so many chat applications out there, now team conversations are more seamless and organized with Troop Messenger. We had performed a various in-depth analysis of our competitor’s tools to give you better insights into their pros and cons with our previous comparison blogs of Slack Alternatives, Ryver vs slack, Microsoft Teams vs slack. However, this time we...
7 Alternatives to Skype to Save Your Sanity in 2019
Slack is a must-have business app. It allows for seamless communication, file sharing, needling of other team members, and task organization. But recently, it has become a great Skype alternative for holding meetings.

Social recommendations and mentions

We have tracked the following product recommendations or mentions on Reddit and HackerNews. They can help you identify which product is more popular and what people think of it.

Mattermost mentions

Slack mentions

  • Looking for new moderators!
    We use Slack for our internal discussions, so if for whatever reason this is not okay with you, unfortunately we'll not be able to consider you for the position. - Source: Reddit / about 2 months ago
  • Backblaze submitting names and sizes of files in B2 buckets to Facebook
    Backblaze also uses Slack. This is a bullet-board type of messaging system. For example, if there is an outage that our operations team needs help from engineering, they post a message in the correct "group" in Slack and the engineers on call or that can help post suggestions and communications and questions back and forth in Slack. These messages are stored in the Slack datacenters of... - Source: Reddit / about 2 months ago
  • 11 Tools to Use as a Technical Product Manager
    The online office. Slack enables team communications in channels, direct messages, and group messages. Slack is a useful tool for teams to work effectively, featuring an excellent interface and rich text editor to communicate efficiently. - Source: / about 2 months ago
  • Build vs. Buy: What’s better for a transactional email notification service?
    How about future enhancements and capabilities? For example, what value would Slack or Microsoft Teams direct message integration offer to your customers in the B2B SaaS space? - Source: / about 1 month ago
  • How I made my first $1K selling Notion templates
    We only kept the communication on Slack & connected it with Notion so that the team knows about tasks while we’re on Slack. The team loved it, the project launched, and everyone was happy with the journey. - Source: Reddit / about 1 month ago

What are some alternatives?

When comparing Mattermost and Slack, you can also consider the following products

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Discord - Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.

Rocket.Chat - Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!

User reviews

Share your experience with using Mattermost and Slack. For example, how are they different and which one is better?

Post a review