Mattermost

mattermost is an open source, self-hosted slack alternative.

Free
Open Source
Mac OS X
Windows
Linux
Android
iPhone
Android Tablet
iPad
Self-Hosted

mattermost is an open source, selfhosted slack alternative.

as an alternative to proprietary saas messaging, mattermost brings all your team communication into one place, making it searchable and accessible anywhere. it’s written in golang and react and runs as a productionready linux binary under an mit license with either mysql or postgres.

mattermost is:

slackcompatible, not slacklimited – mattermost features rival slack features, and support a superset of slack’s incoming and outgoing webhook integrations, including compatibility with existing slack integrations. from your existing slack teams, you can import users, public channel history and even theme setting colors into mattermost.

mobile and desktop apps, in addition to web – use mattermost from your ios or android phones and tablets or with installed apps on windows, linux and mac.

easy to deploy, manage, and upgrade – mattermost runs as linux binary, docker image, and many other forms. try mattermost with a oneline docker install, and many install guides are available. improvements ship monthly.

supported by a vibrant community – use mattermost with dozens of community integrations and applications, including jira, irc, xmpp, hubot, giphy, jenkins, gitlab, trac, redmine, svn, rss/atom and many others. build and share your own apps using mattermost apis and drivers.

Links to official Mattermost sites

Official Website
GitHub
Facebook

Features

MarkDown support Group chat Slack integration Team Collaboration Integrated File Sharing Data API On premises software Plugin API

The Best 19 Mattermost Alternatives

real-time-collaboration filter is active.

567 Like

Slack

Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

Freemium Mac OS X Windows Linux Android iPhone BSD Web Apple Watch

Extensible by Plugins/Extensions IFTTT integration Share files Voice Call Real time collaboration Group chat Support for @mentions App integration Channel manager Group collaboration Multi Channel Onboarding Out Of The Box Reactions Team Collaboration Team work
153 Like

Glip

Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know what your team is doing and what needs to get done next.

Freemium Mac OS X Windows Android iPhone Android Tablet iPad Web

Share your screen Google Drive integration Real time collaboration Group chat Onedrive integration Group collaboration Team Collaboration Team work Dropbox integration CRM Recurring tasks Built in File Manager Trello integration Shared calendars Social feed Bitbucket Integration Box.com integration Calendar view GitHub integration Mailchimp integration Meeting notes Zapier integration Zendesk integration
69 Like

Matrix.org

Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, and generally to link together fragmented silos of communication.

Free Open Source Windows Linux Android iPhone Android Tablet iPad Web Mac

Real time collaboration Group chat WebRTC Team Collaboration Chat Bot Encrypted chat Decentralized End to end encryption Distributed GNU/linux libre Server side history
24 Like

TribeScale

TribeScale is a startup that aims to enhance teamwork in companies through the improvement of communication, coordination, and the pace on the basis of targets set.

Free Mac OS X Windows Android iPhone iPad Web Self-Hosted

Real time collaboration Group chat Group collaboration Team Collaboration Team work Goal Tracking Goal setting
23 Like

Dialog Messenger

Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for server.

Free Personal Mac OS X Windows Linux Android iPhone Web Self-Hosted

Privacy protection Real time collaboration Reactions Team work Encrypted chat Text chat
15 Like

Flowdock

Flowdock is a beautiful group chat. You can upload files, paste blocks of text, use #hashtags to make notes or create lists and mention others’ names to get their attention. Flowdock is also a highly efficient shared inbox.

Commercial Web

Real time collaboration Group chat Support for @mentions Group collaboration
6 Like

Semaphor

Zero Knowledge, end-to-end encrypted collaboration tool for teams and businesses. Reviewable source code. Python wrapper for bots & integrations. Encryption white paper. Native offline mode. Faster file-sharing. Built for enterprise. .

Freemium Mac OS X Windows Linux Android iPhone

Real time collaboration Team Collaboration End to end encryption Mobile friendly Integrated File Sharing
6 Like

AstraChat

AstraChat is a standalone and lightweight Jabber (XMPP) client application for mobile and desktop that connects directly to your XMPP server without any proxies...

Commercial Mac OS X Windows Linux Android iPhone

Security focused Ad free Voice Call Real time collaboration Voice messages
4 Like

Slenke

Slenke is an internal social network for your company to securely communicate, share files, manage projects, organize tasks, track time and more. View updates and keep...

Freemium Mac OS X Windows Web

Real time collaboration Encrypted chat Integrated File Sharing Group Messaging
4 Like

Moxtra

Moxtra provides cloud-based project binders for managing, presenting and sharing your projects/events/parties/trip... from your iPhone/iPad. Highlight Features: ?...

Free Mac OS X Windows iPhone iPad

Real time collaboration Group chat Live Meeting Team Collaboration Voice Notes Sync with Dropbox Facebook integration Document annotations Zapier integration Interactive Whiteboard Remote File Access
3 Like

Brim

Brim is an all-in-one messaging app for teams. It’s real-time messaging, video-calling, screen-sharing, file annotation, screen recording, and file sync. It's optimized for team collaboration.

Freemium Mac OS X Windows Android iPhone Android Tablet iPad Web

File sync Share your screen Real time collaboration Group chat Team Collaboration Integrated File Sharing Email integration
2 Like

zoro.im

zoro.im is 100% Saas based Unified communication, collaboration, telephony, business messaging and digital wallet platform zoro.im app is available in 2 variants ...

Free Personal Windows Linux Android iPhone iPad

Video calling Real time collaboration Low bandwidth usage Team messaging
2 Like

Hyphen Messaging

Hyphen is a professional instant messenger built for modern teams and individuals who want to stay connected to the business world at all times.

Free Android iPhone

Real time collaboration Team messaging
2 Like

GlobalMeet

GlobalMeet is designed to make online meetings and presentations easy. Use it to connect with large groups anywhere in the world. Easy to use Web meetings don't have to be complicated.

Commercial Mac OS X Windows Android iPhone iPad Blackberry

Real time collaboration Group chat Team Collaboration
1 Like

JayPad

JayPads are a mix of WhatsApp and Doodle - taking the hassle out of planning your next night out, your next weekend trip or dinner with friends for good. Simply: -...

Free Web

Real time collaboration Group chat Team Collaboration
1 Like

Zala

Zala is a collaboration app that lets you chat, share checklists and files with anyone in your Contacts. Zala is available for Android, iPhone, iPad, Apple Watch and...

Free Mac OS X Windows Linux Android Web

Real time collaboration Team Collaboration
1 Like

Crugo

Work Better Together Start conversations, plan projects, share files and organise events easily together. Provide your team with everything they need to be more...

Commercial Android iPhone Web Mac

Real time collaboration Group chat Recurring tasks Shared calendars Calendar view Zapier integration
1 Like

Weavy Collaboration Framework

Embed contextual collaboration tools for unlimited users right into the web apps and sites you have built or already use.

Commercial Android iPhone Web Chrome Self-Hosted

Share files Voice Call Real time collaboration Group chat Group collaboration Team Collaboration Direct Messaging Integrated File Sharing File search Tasks managment Meeting notes On premises software Unlimited users Embeddable Document tracking
1 Like

Intraboom

Intraboom is a simple, all-in-one digital workplace that makes communicating and collaborating with your team more efficient for your internal and external projects. And...

Freemium

Real time collaboration Group chat Team Collaboration Tasks managment

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Mattermost

Links to official Mattermost sites

Features

Categories

Tags

The Best 19 Mattermost Alternatives

Slack

Glip

Matrix.org

TribeScale

Dialog Messenger

Flowdock

Semaphor

AstraChat

Slenke

Moxtra

Brim

zoro.im

Hyphen Messaging

GlobalMeet

JayPad

Zala

Crugo

Weavy Collaboration Framework

Intraboom

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