Mattermost alternative

Why go with Rocket.Chat vs Mattermost?

Rocket.Chat is a communications platform for everyone, not just developers. Collaborate with colleagues, partners, customers, communities and even across servers and platforms.

12M+ users in over 150 countries trust Rocket.Chat

Rocket.Chat is an enterprise team collaboration platform, not just for developers.

First, we’d like to give a quick nod to the team at Mattermost.They’ve also built a great product and share the same open source philosophy with us. If you’re here to evaluate Rocket.Chat vs Mattermost, you’re already on the right track to find a secure and compliant communications platform.

So what’s the [.c-red]difference between Rocket.Chat and Mattermost?[.c-red]

The biggest difference is our vision. The founding team at Mattermost is building a platform focused only on developer collaboration while at Rocket.Chat, we want to enable every conversation to happen through Rocket.Chat: Within and across departments, with external partners (through federated servers), and with customers (through channels such as website chat widgets, VoIP, WhatsApp, SMS, and more).

Here are 5 reasons why companies pick Rocket.Chat over Mattermost

Rocket.Chat offers a truly permissive open source license

Rocket.Chat’s community edition is licensed under the most well-understood and permissive open source license – the MIT source license. Mattermost offers a restrictive MIT-COMPILED-LICENSE which pushes anyone depending on enhancing or modifying their source code into agreements such as AGPL V3. Any enhancements made by your organization can be forced to be made open source and shown to everyone – including your competitors.

Enables collaboration with customers on their preferred channel

Rocket.Chat further differentiates from Mattermost by allowing collaboration with customers via a variety of channels, such as website chat widgets, VoIP, WhatsApp for Business, SMS, Twitter, Facebook Messenger, Telegram, and email. Customers can message you from any of these channels, and your teams can collaborate with them in real-time through Rocket.Chat while staying completely secure and compliant.

Rocket.Chat Free version includes basic LDAP directory sync

Every LDAP feature, such as basic directory sync, SAML, OAuth, or advanced LDAP functionalities, is included only in the paid versions of Mattermost. With Rocket.Chat, the basic directory sync is included in the free version. If that’s all you need, you can use it as you need, and if you need more advanced LDAP functionalities, you can test them before committing commercially.

Rocket.Chat offers data security and protection in every conversation

Rocket.Chat’s open source platform is designed and built for security-conscious organizations. It has a more robust permission system, allowing better control of the information shared. On top of that, Mattermost also doesn’t offer end-to-end encryption.

Scale with ease using’s open source platform

Rocket.Chat uses a microservices architecture as opposed to monolithic, which Mattermost uses. The monolithic architecture makes it challenging for organizations to scale beyond a certain threshold. In most cases, they end up migrating to a microservices model.

Ready to talk?

Learn why security-conscious organizations choose Rocket.Chat

Still not convinced? No problem.

Here’s an in-depth feature comparison of Rocket.Chat vs Mattermost.



Open Source

MIT License






With colleagues

With customers

With partners and vendors

Across servers and platforms

Team collaboration features

Teams and channels


File, image, and link sharing


Unlimited search history


Read receipts

Advanced roles and permissions

Guest users

Encrypted push notification

Real-time translation

Public channels

White labeling

Omnichannel customer collaboration features

Manual & Auto Chat Routing

Queue Management

Agent office hours configuration

Facebook Messenger,  Whatsapp, SMS, Email, Twitter Integrations

SMS & CRM Integration

Email Inbox

Analytics and Real-time monitoring dashboards

Chat tagging and forwarding

Microservices architecture


Active Directory/LDAP

Webhooks and REST API communication

App Marketplace


Privacy and Security

Post incident reports

Off the record messaging

Oauth SSO

SAML 2.0


End to end encryption

Access control policies

Multi-factor authentication

Incident collaboration

ID-only push notifications


Native apps for iOS, Android, Windows, Mac and Linux


On GitHub


Here’s what customers who picked Rocket.Chat have to say.

“Slack wasn’t a real alternative for us at that time, because it was SaaS. ”

“For data privacy concerns, we needed something that we could host ourselves. Rocket.Chat really speeds up the process of collaborating with our external partners, as well as internally. It allows us to share information really fast, very effectively, and in different ways.”
Stefan Teubner
IT Project Leader, Audi Business Innovation GmbH

“A huge differentiator to win more business…”

“Thanks to Rocket.Chat, we figured out how to deliver and win customers without sending engineers on site. The Omnichannel Feature enables us to provide enterprise-level support, a huge differentiator to win more business.”
Mike Schwartz
CEO & Founder at Gluu
Microsoft Teams
Skype for Business

Why privacy-conscious companies choose Rocket.Chat

Digital sovereignty
180+ advanced role-based permissions
Private network deployment (cloud, on-prem, or air-gapped)
Interoperability - Federation capabilities built on Matrix
Omnichannel citizen engagement (SMS, email, WhatApp, and other)
MIT Open Source license (all editions)
BITV 2.0 Compliance

Connect with our sales team.

Our pre-sales and sales teams are happy to assess your needs and answer any questions about Rocket.Chat.
  • See a custom demo of Rocket.Chat
  • Get pricing information
  • Switch to Enterprise Edition
  • Assess your business goals and technology requirements