An open source collaboration platform that won’t slow you down.
Give your developers everything they need to boost team productivity with an open source alternative to Microsoft Teams built for developer workflows.
Developers prefer Mattermost to Microsoft Teams
An all-in-one solution for developer collaboration
|On-prem or private cloud|
Go ahead – make Mattermost your own.
Your tools should be tailored to fit the way your team works. Mattermost gives you the ability to customize, extend, and build bespoke integrations — including with legacy systems and even Teams itself.
- 34,000+ GitHub™ Stars
- 30,000+ total contributions
- 4,000+ contributors
The OSS CommunityMattermost
More deployment options than Teams
From governments and intelligence organizations to financial services and healthcare companies, teams in high-security and regulated industries trust Mattermost for secure collaboration.
Choose between on-prem and private cloud deployment options that meet your unique security and compliance needs and enable you to retain full control and sovereignty over your data. Deploy in air-gapped and other high-security environments, use EMM for secure mobile comms, and define granular controls for enterprise data archiving to keep data properly secure and accessible.
Built to accelerate developer workflows
Mattermost goes beyond general-purpose chat with collaboration features designed to help developer teams with up to tens of thousands of concurrent users build code, execute sprints, deploy releases, and manage outages and support escalations all from one place.
Channel-based collaboration with powerful automation and tool integrations to raise messaging to the level of a CLI.
Playbooks for structured workflows that require repeatable execution with predictable outcomes.
Boards for project and product teams that need to manage deliverables, hit their milestones, and stay aligned.
Don’t just take our word for it
Mattermost vs. Microsoft Teams Platform Comparison
Learn why engineering organizations prefer Mattermost for developer workflows and collaboration.
Open source codebase is supported by community contributors and is publicly available.
Proprietary software can only be modified by Microsoft; source code is not publicly not available.
On-premise and private SaaS
On-premise platform is easily deployed to your private cloud environment and behind your firewall. Customers have total control over security.
Provided as a SaaS publicly-hosted product only as part of MS 365 Suite. There is no on-prem or private-cloud option.
Your data stays in your hands
Keep your data within your existing compliance system. All data in Mattermost, including chat history, can be backed up and exported, and always remains under your ownership and control.
Data managed by Microsoft
Data stored on Microsoft cloud servers. May require additional configuration to implement compliance and retention policies, run analysis on chat data, and migrate data to other systems.
Fully customizable and extensible
Extensible through various existing and custom plugins. All plugins currently are free or come bundled with a Mattermost license. Use custom commands to extend the functionality or integrate with other services via webhooks.
Limited extensibility; additional purchases required
Extend Teams through prebuilt apps to integrate with other platforms; some require additional purchases. Create custom applications to add additional integrations within Teams. Outgoing webhooks are operated through bots that call the external service.
Designed for developer workflows
Designed for developer team collaboration and technical use cases including DevOps processes, incident resolution, and release management.
Designed for general collaboration
Designed for general collaboration for day-to-day activities.
Mobile app allows for voice calls (beta) and chats. Currently only supports a single Mattermost server and no plugins or file management. API can be used to build custom app and add additional layers of security and customization.
Mobile app allows video calls, calendar views, chat, integrated cloud storage (Office 365), dashboards, support for multiple team accounts, etc. No ability to customize the mobile app.