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

Slack brings all your communication together in one place. It’s realtime messaging, archiving and search for modern teams.

Links to official Slack sites

Official Website
Twitter
Facebook

Features

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

The Best 26 Slack Alternatives

integrated-file-sharing filter is active.

144 Like

Wire

Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted.

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

Privacy focused Security focused Share your screen Video calling Voice Call Group chat WebRTC Encrypted chat Photo Sharing End to end encryption Integrated File Sharing Privacy Protected Encrypted calls Video chat (Encrypted)
113 Like

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

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

Zulip

Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations.

Free Open Source Mac OS X Windows Linux Android iPhone BSD Web Self-Hosted

MarkDown support Group chat Group collaboration Team Collaboration Chat Bot Community based Integrated File Sharing GitHub integration Threaded Conversations
72 Like

HipChat

HipChat is an instant messaging service designed for companies and teams.

Freemium Mac OS X Windows Linux Android iPhone Android Tablet iPad Web

Share your screen Team Collaboration Integrated File Sharing
67 Like

Rocket.Chat

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Free Open Source Windows Linux Android iPhone Mac Self-Hosted Cloudron

Extensible by Plugins/Extensions Ad free Share your screen Group chat Voice messages Chat Bot Integrated File Sharing Location Mapping
29 Like

Flock

Flock is the fastest growing team messenger and loved by over 25,000 companies globally. It also comes with its powerful platform, FlockOS.

Freemium Mac OS X Windows Android iPhone Android Tablet Chrome OS Web Windows Phone

IFTTT integration Share your screen Video calling Voice Call Google Drive integration Group chat Channel manager Group collaboration Team Collaboration Encrypted chat Jira integration Integrated File Sharing Asana integration Trello integration Twitter integration Bitbucket Integration GitHub integration Mailchimp integration Zapier integration Team messaging Google Calendar integration Google Analytics Integration Uber integration Visual Studio integration
25 Like

Hibox

Hibox combines group chat, AI-powered tasks and video to help teams collaborate in ways never before possible.

Freemium Android iPhone Android Tablet iPad Web

Video calling Google Drive integration Group chat Team Collaboration Dropbox integration Integrated File Sharing Box.com integration
22 Like

qiscus

qiscus organizes your work discussions into rooms and topics to help your team become more efficient and productive.

Free Personal Mac OS X Windows Linux Android iPhone iPad Chrome OS Web

Video calling Group chat Team Collaboration Integrated File Sharing
19 Like

Fleep

Fleep is a messenger for your teams and projects. It enables communication within and across organizations - be it your team chats, project communication or 1:1 conversations.

Freemium Mac OS X Windows Android iPhone Web

IFTTT integration Share your screen Video calling Voice Call Group chat Integrated File Sharing
19 Like

Grape

Grape is a business communication solution with a deep service integration, that makes all the distributed data from different external cloud services instantly available - right as you type.

Commercial Mac OS X Windows Android iPhone Android Tablet iPad Web

Microsoft Office integration Group chat Team Collaboration Dropbox integration Integrated File Sharing GitHub integration Google Calendar integration
16 Like

Campfire

Campfire is a simple web-based real-time group chat tool for business. It makes real-time communication with 2-60 people as simple as visiting a web page. It’s elegant, easy, and web-based.

Commercial iPhone Web

Voice Call Group chat Team Collaboration Integrated File Sharing
14 Like

Sid

Sid is a secure teamwork tool to make your team communication safer, simpler and more efficient.

Free Mac OS X Windows Linux Android iPhone Android Tablet iPad

Group chat Team Collaboration Team work Encrypted chat End to end encryption Integrated File Sharing
13 Like

Circuit

Circuit is voice, video, screen sharing, messaging, and file sharing in a single view.

Freemium Mac OS X Android iPhone Android Tablet iPad Web Apple Watch

Share your screen WebRTC Team Collaboration Integrated File Sharing Support for Multiple threads
8 Like

AVAILO

AVAILO is a business communication app for teams.

Free Android iPhone Android Tablet iPad

Group chat Team Collaboration Team work Integrated File Sharing
8 Like

Output Messenger

Private and Secure Instant Messenger for Office designed specifically for keeping remote employees and multiple offices in sync.

Commercial Mac OS X Windows Linux Android iPhone Self-Hosted

Integrated Chat Share your screen Group chat Integrated File Sharing
7 Like

Zoho Chat

Zoho Chat combines content and communications into a single view to give you a comprehensive picture of your team's work.

Free Android iPhone Web Android Wear

Group chat Integrated File Sharing
7 Like

SquidHub

SquidHub is a simple, fun and flexible way to collaborate with friends, family and co-workers. Get a great overview and say goodbye to stress.

Free Android iPhone Web

Real time collaboration Group chat Team work Sync with Google Calendar Built in Calendar Integrated File Sharing Shared calendars
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
3 Like

IceWarp

IceWarp integrates all communication & collaboration features in one unified solution.

Commercial Windows Linux Web

File sync Real time collaboration Group chat Integrated File Sharing Shared calendars Outlook integration
2 Like

Protonet SOUL

Extendable cloud-based team communication and business collaboration app that you can easily host on your own Private Cloud Server if you want. Also available on iOS and Android devices.

Commercial Android iPhone Web

Share files Video calling Group chat Integrated File Sharing

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Slack

Links to official Slack sites

Features

Categories

Tags

The Best 26 Slack Alternatives

Wire

Mattermost

Zulip

HipChat

Rocket.Chat

Flock

Hibox

qiscus

Fleep

Grape

Campfire

Sid

Circuit

AVAILO

Output Messenger

Zoho Chat

SquidHub

Semaphor

IceWarp

Protonet SOUL

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