Mattermost Reviews & Product Details

What I like best about Mattermost is its balance between security, flexibility, and usability. The platform provides a familiar team messaging experience while giving organizations full control over their data through self-hosting. It integrates well with development and DevOps workflows, supports channels, file sharing, and powerful search, and offers extensive customization through plugins and APIs. Overall, it's a reliable collaboration tool that works especially well for technical teams and organizations with strict privacy or compliance requirements. Review collected by and hosted on G2.com.

While Mattermost is a strong collaboration platform, the user interface can feel less polished and intuitive than some competitors. Initial setup and administration may require more technical knowledge, especially for self-hosted deployments. Some advanced features are only available in paid editions, and the mobile app experience could be smoother in terms of performance and usability. Review collected by and hosted on G2.com.

Mattermost has been really helpful for handling internal office tasks, and I genuinely love using it. Review collected by and hosted on G2.com.

The UI feels pretty boring and outdated very Google Material 2 like, which I really dislike. Also, Mattermost has branding all over the chat and the Focalboard app, and it makes everything feel bloated and look ugly. Review collected by and hosted on G2.com.

I use Mattermost at work for inside company communication, and I think it's really easy to use. I like how it can send and receive every type of information, like text, photos, files, and zip files, which is super handy. It's fast to use and I can choose between the desktop version, web, or mobile app, and they are all comfortable to use. I have also connected it with my job's mailbox, allowing me to save every chat with my boss in my mailbox. The initial setup was easy, and everything is simple to find in the app. I think Mattermost is one of the best, and I can't remember any issues. Review collected by and hosted on G2.com.

i have use it more then 6 years and can't remember anything i wanted and app hasn't it Review collected by and hosted on G2.com.

The biggest advantage of Mattermost is the ability to self-host it. Since data privacy is a huge concern for us, having full control over our chat data on our own servers is a gamechanger. The interface feels very familiar if you've used Slack before, so onboarding the team was incredibly easy. I also really appreciate the deep integrations with developer tools like Jira and GitLab. Review collected by and hosted on G2.com.

The mobile app can sometimes be a bit clunky. Push notifications are occasionally delayed by a few seconds compared to the desktop app, which can be slightly annoying when you are away from the keyboard. Also, the search function could be a bit smarter when looking for older files. Review collected by and hosted on G2.com.

You can easily share the Messages, Links, Picture & Videos. The data we share is end to end encrypted, so from data security point of view it is reliable. Best ROI. Review collected by and hosted on G2.com.

You cannot delete the entire chat in one go which sometime is benificial and sometime it is not. Review collected by and hosted on G2.com.

What I appreciate most about Mattermost is the level of control and flexibility it gives me. Because I run it self-hosted, I can keep everything within my own infrastructure, so performance, privacy, and compliance stay in my hands instead of being tied to a third-party SaaS environment. For engineering teams, that kind of autonomy is a genuine advantage.

I also value the developer-friendly workflow. Channels and threads remain easy to follow even when conversations get busy, and integrations tend to behave predictably. With webhooks, slash commands, and custom bots, it’s straightforward to tailor Mattermost to internal workflows rather than forcing the team to fit a rigid tool. Review collected by and hosted on G2.com.

The biggest downside for me is that parts of the platform still feel a bit dated compared with newer collaboration tools. The UI is functional and reliable, but it isn’t as polished or modern as some alternatives, which can make the overall experience feel a little utilitarian.

Self-hosting is definitely a strength, but it also comes with extra overhead. Upgrades, backups, and plugin management require ongoing maintenance, and even small configuration issues can take time to troubleshoot. If you don’t have a solid DevOps setup in place, that operational burden can add up quickly.

The plugin ecosystem also feels more limited than Slack or Teams. While the core integrations work well, there are times when I wish there were more out-of-the-box options, rather than having to build custom bots or scripts to fill the gaps. Review collected by and hosted on G2.com.

What I like best about Mattermost is the control it gives you without sacrificing collaboration. It delivers fast, reliable team messaging while letting organizations self-host, customize, and meet strict security or compliance needs. Channels keep conversations focused, integrations plug neatly into DevOps workflows, and everything feels purpose-built for teams that value transparency, ownership, and serious work over noisy chat. Review collected by and hosted on G2.com.

What I dislike about Mattermost is that it can feel less polished out of the box compared to some mainstream chat tools. Initial setup and administration require technical effort, and advanced features often need configuration or plugins to shine. Review collected by and hosted on G2.com.

What I like most about Mattermost is its strong focus on security and customization. The option to self-host gives us complete control over our data, which is a major advantage compared to other messaging platforms. On top of that, the interface is clean, performance has been reliable, and the available integrations make team communication and collaboration noticeably more efficient. Review collected by and hosted on G2.com.

One thing I don’t really like about Mattermost is that it can feel a bit less polished compared to other tools, and sometimes the setup or integrations take more effort than expected. Review collected by and hosted on G2.com.

Mattermost is reliable, fast, and keeps all internal communication organized in one place. I like how it’s built with privacy and data control in mind, which makes it stand out from typical cloud-based messengers. Channels, threads, and integrations with tools like Jira and GitHub make it great for team coordination. It feels professional but still easy to use for quick updates or in-depth project discussions. Review collected by and hosted on G2.com.

The interface can feel a bit dated compared to newer messaging apps, and the mobile version sometimes lags or misses notifications. Setting up integrations also takes some trial and error, especially for non-technical users. A few small improvements in search speed and UI polish would make the overall experience smoother. Review collected by and hosted on G2.com.

I like Mattermost for work since it provides a clean interface, making it easy to navigate. The ability to use chat is good and the platform is quick and responsive. The interface is pretty easy to use, with standard menus that simplify finding what I need. Setting it up was fairly simple and straightforward. Review collected by and hosted on G2.com.

The notifications did not always come through as configured, so things were lost sometimes. Also, when Mattermost was upgraded, there was no communication about the change, so it was frustrating to figure out the new updates without any heads up. Review collected by and hosted on G2.com.