on-premises | self-hosted | private cloud

Messagenius: Self-hosted Mattermost Alternative

Secure, Easy-to-Use, and Totally Custom


Messagenius features friendly team chat, secure collaboration, and total control of your data.

Messagenius is the Best Alternative for Many Industries


Friendly Custom Interface
Most users struggle with complicated user portals. Messagenius simplifies chat so all your team members can join in.

More Chat Features
Invite guests for task management, make video calls without an add-on, and use audio messaging to leave a quick message.

Collaborate with Colleagues
Broadcast messages to all teams in your organisation, create a group based on a project, and send pictures, videos and files quickly.

End-to-end Encryption
Some Mattermost alternatives and open source tools lack security. Messagenius offers end-to-end encryption for your messages.

Here is what Messagenius offers organizations that are ready to upgrade from Mattermost.

Secure app for hospitals

Maximise Security with Self-Hosted Team Chat

Moving your communications data anywhere introduces risk. That’s why many businesses need an alternative to Slack, Microsoft Teams, and WhatsApp. Mattermost is a good open source alternative, but it’s missing a few key things.

Here’s why Messagenius is the secure solution for you:

  • End-to-End Encryption of your data, from every group chat to all the instant messages and everything in between.
  • On-premises installation, with your security controls, so you can build every element of the system to meet your data protection requirements.
  • Black Box & Black Hole conversations to enable even higher levels of security for the most important discussions.

Tailored Corporate White-Label App

Keep your app’s user experience and interface in sync with your brand identity. Get a custom private messenger that reflects the values and vision of your organisation. Mattermost may be great for some dev teams, but Messagenius is customised for every business.

instant messaging integration via SDK
instant messaging app for work, text, files, docs, location, voice messages

Productivity-Boosting Features

All you need from instant messaging apps together with enhanced features for work: dashboards, chat exports, #channels, smart contact lists and department accounts.  Messagenius keeps the interface clean and simple so everyone can benefit from a productivity boost.

Customisable Encryption Settings

Messagenius offers highly granular security settings. This means you can customise the encryption, user access, and file sharing according to your business needs for every member. Easy-to-use dashboards and controls make controlling access simple.

Private, on-premises installation for data ownership

Messagenius is Your Best Alternative to Mattermost

Messagenius is the winner of multiple cybersecurity awards for enterprise messaging. We offer the best in security, functionality, and customisation because your business works better when everyone works together.

Mattermost may be great for dev teams,
but Messagenius has the tools every enterprise needs for their industry.

Live location tracking for workers on and off site to coordinate a remote workforce.

Log, flag, and take conversations incognito to make team chat responsive to changing security needs for healthcare, finance, and military applications.

Ability to launch room channels instantly to create an incident response workflow.

Secure Your Chats with Advanced Conversation Protection Features

Some people, meetings, and content need an extra level of protection. When your organization needs to move to a higher level of privacy, we have two kinds of chats to protect your people.

Black Box Chats


Know when, what, and to whom all the conversations have been sent within your enterprise. Messagenius Black Box Chats are always certified between sender and recipient. All messages are time stamped and come with a mandatory proof-of-receipt.


Black Hole Chats


Protect your most sensitive data with Black Hole chats. Messagenius Black Hole conversations do not pass through any servers and leave no trace of their existence. Set up a timer, and once your message is open, the message always self-destructs and cannot be recalled from the server.


Achieve GDPR Compliance with Full Data Ownership and Clear Data Sovereignty

Messagenius is 100% compliant with GDPR and leak proof. We do not involve third parties to store, access or use your data. Even the team at Messagenius itself does not have access to your data. The requirements include:

Privacy by design

From the beginning, Messagenius has been designed to protect your data at the individual and enterprise level.

Transfer of data

Messagenius gives you complete control over where and how your data is stored.

Messagenius gives organizations a platform for secure business storage of data and compliance with every GDPR statute.

Get Messaging with Our SDKs & APIs for Seamless Integration with Existing Software

Messagenius integrates into any intranet, task manager, CRM, corporate communications platform, or other internal system via SDK. Our intranet fit allows managers to track secure communications and work in tandem with existing internal systems.

Learn more

Clients & Partners

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Logo - Engineering Group
Logo - UK department for International Trade

Clients & Partners

Sogei Logo
Logo - Engineering Group
Logo - UK department for International Trade

What they say

“I have selected Messagenius as a messaging tool for our top national client in the infrastructure industry. The excellent feedback from the end-users and the top managers of the client confirmed that Messagenius was the right choice for security, flexibility, and reliability.”

Alessandro Chierico

Responsible for Infrastructure Development & Maintenance Area


Messagenius Offers a Free Demo with An Expert

Would you like to see how an enterprise communications tool can transform your team and project management? Click the button below to arrange your free demo.