Mattermost vs Slack : Which is Better?

Mattermost

Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed. Developed by SpinPunch, Inc.

License: Open Source

Categories: Development Office & Productivity Social & Communications

Apps available for Mac OS X Windows Linux Android iPhone

Slack

Slack is a cloud-based team collaboration tool. Developed by Slack Technologies, Inc.

License: Freemium

Categories: Business & Commerce File Sharing Office & Productivity Social & Communications

Apps available for Mac OS X Windows Linux Online Android

Mattermost VS Slack Feature comparision

Feature	Mattermost	Slack
Group chat
Integrated File Sharing
MarkDown support
Slack integration
Chat Bot
Data API
Multi Channel
On-premises software
Plugin API
Plugins
Self-hosted in intranet or private cloud
File Sending
Supports XMPP
Team Collaboration
Webhook support
Voice Call
Ad-free
Group collaboration
End-to-End Encryption
Decentralized
Security & Privacy
Video Conferencing
Privacy-friendly
Federation
Chat
Threaded Conversations
Chat organizer
Channels
Live Chat
Animated stickers
Call Transfer
Desktop Sharing
Planner
Microsoft Office integration
Office 365 integration
Cross-platform
Public communities discovery
Real time collaboration
Collaborative
Extensible by Plugins/Extensions
IFTTT integration
Onboarding
Out Of The Box
Reactions
App integration
Channel manager
Direct file uploading
Electron based
HIPAA compliant
Live Push Notifications
Support for @mentions
Multiple channels
Multiple teams
Team work
Video calling
Video chat
Security focused
Encrypted chat
Share your screen
Gmail integration
Content Templates
File sharing
Gantt-charts
Apps that Sync with Google Calendar