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What is Slack?

Slack is a cloud-based service designed to improve collaboration on projects and facilitate communication within teams, specifically aiming to promote seamless interactions within businesses. It provides a comprehensive suite of tools and services all in one place, allowing for private channels that foster interaction among smaller groups, direct messaging to quickly convey information to colleagues, and public channels that facilitate conversations among members from various organizations. Compatible with multiple operating systems, including Mac, Windows, Android, and iOS, Slack offers an extensive range of features such as chat functions, file sharing, collaborative environments, instant notifications, two-way audio and video communication, screen sharing, document imaging, and activity tracking, among others. The platform's intuitive interface and diverse integration capabilities contribute to its popularity among teams striving to boost their productivity and enhance communication. Furthermore, users appreciate Slack's ability to streamline workflows and keep everyone connected, making it an essential tool for modern workplaces.

Pricing

Price Starts At:
$6.67 per user per month
Free Version:
Free Version available.
Free Trial Offered?:
Yes

Integrations

Offers API?:
Yes, Slack provides an API

Screenshots and Video

Slack-Channels

Slack-Channels

Company Facts

Company Name:
Slack
Date Founded:
2014
Company Location:
United States
Company Website:
slack.com

Product Details

Deployment
SaaS
Windows
Mac
Linux
iPhone
iPad
Android
Training Options
Documentation Hub
Online Training
On-Site Training
Support
Web-Based Support

Product Details

Target Company Sizes
Individual
1-10
11-50
51-200
201-500
501-1000
1001-5000
5001-10000
10001+
Target Organization Types
Mid Size Business
Small Business
Enterprise
Freelance
Nonprofit
Government
Startup
Supported Languages
Chinese (Mandarin)
Chinese (Simplified)
English
French
German
Italian
Japanese
Korean
Portuguese
Russian
Spanish

Slack Categories and Features

Web Conferencing Software

Electronic Hand Raising
Mobile Access
On-Demand Webcasting
Presentation Streaming
Presentation Tools
Private Chat
Real-Time Chat
Record & Playback Ability
Screen Sharing
Two-Way Audio & Video
Video Conferencing
Whiteboard

Video Conferencing Software

Electronic Hand Raising
Mobile Access
On-Demand Webcasting
Presentation Streaming
Presentation Tools
Private Chat
Real-Time Chat
Record & Playback Ability
Screen Sharing
Two-Way Audio & Video
Video Conferencing
Whiteboard

Unified Communications Software

Audio / Video Conferencing
Calendar Management
Call Recording
Call Routing
Chat / Messaging
Fax Management
File Sharing
Mobile Access
Multi-User Collaboration
Voice Mail

Team Communication Software

Activity / News Feed
Audio Calls
Calendar Management
Chat / Messaging
Discussion Threads
File Sharing
Mobile Access
Push Notifications
Search
Surveys & Feedback
Task Management
Video Conferencing

Team Chat Software

End-to-End Encryption (E2EE)
File Sharing
Groups / Channels
Payments
Search / Filter
Self-Destructing Messages
Stickers / GIFs
Threaded Discussion
Video Conferencing
Voice Calling

Screen Sharing Software

Annotations / Drawing Tools
Desktop / Browser Sharing
Mobile Screen Sharing
Presenter Control Management
Remote Control
Screen Capture
Screen Mirroring
Screen Recording

Remote Work Software

Collaboration
Credential Management
Electronic Signature
Employee Monitoring
Live Chat
Meeting Management
Project Management
Remote Access
Remote Support
Screen Sharing
Softphone
Task Management
Time Zone Tracking
Video Chat
Web Conferencing

Messaging Software

End-to-End Encryption (E2EE)
File Sharing
Groups / Channels
Payments
Search / Filter
Self-Destructing Messages
Stickers / GIFs
Threaded Discussion
Video Conferencing
Voice Calling

Internal Communications Software

App Integration
Blogs
Chat/Messaging
Email Management
Employee Directory
Event Calendar
Newsletter Management
Photo Gallery
Social Sharing
Survey Management
Telephony
Video Chat
Voice Chat

Employee Communication Tools

Activity / News Feed
Audio / Video Conferencing
Blogs
Chat / Messaging
Employee Directory
Event Calendar
File Sharing
Knowledge Management
Newsletter Management
Surveys & Feedback

Collaboration Software

Brainstorming
Calendar Management
Chat / Messaging
Contact Management
Content Management
Document Management
Project Management
Real Time Editing
Task Management
Version Control
Video Conferencing

More Slack Categories

  • Reviewer Name: A Verified Reviewer
    Position: ERP Consultant
    Has used product for: 1-2 Years
    Uses the product: Weekly
    Org Size (# of Employees): 26 - 99
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Very productive with customer to clients communication

    Date: Jul 22 2020
    Summary

    Excellent with effective project collaboration especially for the team members.
    More brilliant user interface.
    Easy to use and reliable with task management.

    Positive

    Easy to communicate with customer for the clients.
    Most convenient with team collaboration for project management.
    Messaging is just instant.

    Negative

    Reliable with team collaboration and user friendly software.

    Read More...
    1 user found this review useful.
  • Reviewer Name: A Verified Reviewer
    Position: Solution Architect ( IT )
    Has used product for: 1-2 Years
    Uses the product: Daily
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Contact to Team using slack

    Date: Aug 29 2020
    Summary

    Overall Slack is a good app which helps to communicate with your team. The mobile app is excellent.

    Positive

    Brings the team to start the conversation.
    Message and collaboration.
    Custom channel to integrate with plugins.
    Mobile app.

    Negative

    No, team conference settings. Rest if the things are good.

    Read More...
  • Reviewer Name: Saumaya S.
    Position: Chief Executive Officer
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    New communication method

    Date: May 26 2020
    Summary

    It's a perfect communication tool make my professional and personal life easy. It matches my business size and helps me easy to communicate with my team. Sharing documents is very convenient and time saving. You should must try slack it well designed and works perfect what they promise.

    Positive

    Easy to communicate. Very simplistic user interface. Ideal for any organization size. Easy to create new chat threads. Handy calling option with great voice clarity. Futuristic screen sharing option. Easy to make audio and video conferencing with employees.

    Negative

    Many times they release buggy update. Messages are not end to end encrypted.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: N/A
    Has used product for: Less than 6 months
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Preferred Over Microsoft Teams, Highly Recommended

    Updated: Oct 26 2020
    Summary

    Overall, I prefer this over Microsoft Teams. It's got some minor issues, which may be more of a problem if you have an older computer or a flakey internet connection. I'd recommend if you have problems with font rendering to use the browser version on PC. There's also the theme glitching with the Android app, but that can easily be worked around. I haven't had any major issues with it and would love to see even more app integration. While the main focus of Slack is for professional usage, I could see, with some more apps added, that it could also be great for family/household management as well. I really like the theme choices and the ability to customize the theme, and the custom emojis, even though this doesn't really improve anything about using Slack itself. It's all the little things about it that make me enjoy it more than Teams, and for a non-professional comparison, Discord. I'd definitely recommend giving it a try, whether for work or for personal use.

    Positive

    There are a wide range of apps available to integrate with Slack, including popular ones you'd expect. There are lots of themes to choose from and you can even customize it. Small things like this, which don't overall affect useability, make my enjoyment of logging in just a little bit more and I wish more developers these days would get past the whole light/dark mode. So I really appreciate the base 20 themes available. Works across multiple platforms, so you can use it on PC or your phone with ease. Gifs, audio, video, upload everything with ease. You can upload tons of custom emojis too. Compared to Teams, I feel like overall, it runs smoother most of the time.

    Negative

    I'd prefer more darker themes added and even more app integration. Sometimes, it lags on the computer if you're using the downloaded software. This version can have issues with font rendering as well, depending on your computer. I haven't encountered these issues in the Android app or browser versions. Only the Windows program seemed to have this issue, and only on my old laptop. My other computer, which is a newer desktop, does not have this issue. Despite following suggestions, sometimes custom emojis don't render quite right either. It's very trial and error. The Android app has issues with keeping theme preferences if the theme was set through the app itself, but doesn't seem to have this issue if you set the theme through a browser on a computer or the Windows software.

    Read More...
  • Reviewer Name: Vivek S.
    Position: Systems Officer
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 10,000 - 19,999
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Very easy to use group communications!

    Date: May 25 2020
    Summary

    Slack helps me a lot during lock down! I communicate with my colleagues and family members. I regularly do official work using it. Screen sharing is also helping a lot. I feel it has an edge over Zoom.

    Positive

    Slack works on different operating systems, hence it gives me freedom to use from any computer. Moreover, it can also be used on mobile. I also like its capability of sending media files like audio/video. Hence, it gives extra wings to the user.

    Negative

    I do not like its poor sharing screen feature. However, apart from this, I did not find anything to complain for.

    Read More...
  • Reviewer Name: Vaibhav P.
    Position: Content Marketer
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    The best tool for managing remote teams.

    Date: May 23 2020
    Summary

    It definitely gives you a professional feeling and handles all team members and groups properly. It's a must-have tool If you are managing remote teams and want everything in one place.

    Positive

    I have been using Slack for the last 6 months and I am fully satisfied using it. The application is easy to use and can be integrated with other tools such as Zapier, Mailchimp, Google Drive. The mobile application is easy to navigate with great features.

    Negative

    The application is a bit slow and is not suitable for a quick conversation with my teammates. I found myself using WhatsApp to get the conversation going. The application can be updated to match some features of WhatsApp although the later is not a project management tool it is great for having a quick conversation.

    Read More...
  • Reviewer Name: Sandip K.
    Position: Strategic Account Specialist
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 5,000 - 9,999
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Slack: Most sophisticated tool for business instant messaging

    Date: Nov 04 2020
    Summary

    It's over three years now ever since I started using Slack and has advanced business instant messaging.

    Positive

    I like that Slack has capabilities that allows me to create multiple communication channels in one secure workspace.

    Negative

    Video conferencing feature requires boost by integrating it with Web conferencing platforms like GoToMeeting.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Intern
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 1,000 - 4,999
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Best application for collaboration and work.

    Date: Apr 15 2020
    Summary

    Good user experience, easy to setup and like the one click option to integrate with an external application..

    Positive

    Easy to install and to work with the application.
    User friendly.
    Clean and neat interface designed to work with.
    Has many apps to integrate with (eg: Google Calendar, Jenkins, etc.)

    Negative

    Slightly slow while loading messages.
    Loading of application is slow sometimes.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Senior account executive
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Best way to communicate

    Date: Nov 05 2020
    Summary

    Slack is my favorite. Especially communicating in channels with team mates collaborating on work projects.

    Positive

    Slack makes communicating with your team mates in different channels very fun, especially when you use giphy as well.

    Negative

    Nothing about Slack that I do not like. It’s far superior to other messaging platforms.

    Read More...
  • Reviewer Name: Mika T.
    Position: Systems Administrator
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    The leader in team management.

    Date: Nov 03 2020
    Summary

    The clear leader in its corner and with good reason. There are a few alternatives that do one or two things better but Slack does everything at 9/10.

    Positive

    It just works. It's easy to use, our users love it, and it integrates with everything. Bonus : it's nice to hook up news, weather, what-have-you to your feeds and have everything in one place.

    Negative

    It is a little pricey compared to some alternatives but you get what you pay for.

    Read More...
  • Reviewer Name: Shreyas P.
    Position: Intern
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Virtual workspace

    Date: Nov 09 2020
    Summary

    Slack is a great tool for team communication, has a great notification system for messages.
    Feels like a virtual workspace with every department having their own workspace.

    Positive

    Create different channels for different departments all with their own scope access, Has web and app versions both available so can be accessed from any platform of choice that can access internet.

    Negative

    The messages are deleted after 2 weeks, the file storage space is based on the subscription.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Business Operations
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 26 - 99
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Slack is the de facto communication service

    Date: May 24 2020
    Summary

    Overall, Slack is probably the only choice when it comes to an enterprise communication tool that'll help bring together your company. It's lightweight, fast, and integrates with everything and anything - what else could you ask for?

    Positive

    Slack integrates well with almost every piece of software out there and has all the built in functionality that you'd expect from a number of chat software solutions out there for enterprises.

    Negative

    It's easy to get engulfed in Slack and lose productivity since it's so interactive and has so many functions to keep you interested. That said, there's great features to limit your usage and be able to adjust the notification settings to give you back more control.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Consultant
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Best chat option for companies or teams out there

    Date: Nov 10 2020
    Summary

    The app is super intuitive and user-friendly and even our least tech savvy team members have had an easy time acclimating to using it. It's a great option for teams that find themselves with extremely long and confusing email threads-- Slack helps keep things organized and clear.

    Positive

    Chat is like email but 1000x better. Like email, it shows conversations in a specific context (known as channels in Slack), so even if you work with many of the same people on multiple projects, you can have clear conversations about discreet topics without things getting confused across projects. The app has so many integrations with other tools, pretty much anything you can think of that your team could be using. You can view every file that has been sent in a conversation (almost like WhatsApp).

    Negative

    It would be awesome if you could also se all links that have been shared in a channel or conversation in addition to all files.
    It would be helpful for teams to discuss norms around how to use Slack. Slack isn't as effective if everyone you're working with is using it. Our team has had issues with people not using Slack because they prefer other methods.
    Slack also presents some problems with feeling like you have to answer every message immediately (somehow this isn't as much an issue over email), plus it can blur the boundary of when is OK to message someone outside of work hours. Along those lines though, a perk is that you can adjust your settings to shut off notifications after work hours.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position:
    Has used product for: Less than 6 months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Amazing Private Chat Platform

    Date: May 23 2020
    Summary

    This software is an excellent alternative to the Discord platform that can be used by businesses and schools.

    Positive

    The software is very easy to use. The people on my team who are not too good with technology have managed to use this software very well and with no issues.
    The GUI is great. The features it provides are great.
    The free tier's features are good enough, that paying for the higher tier is not required.
    The message encryption is good for any saucy secrets I want to share with others.

    Negative

    It can sometimes take a while to boot up the program. However, this is very rare and has only happened to me a couple of times.
    No theme customization, which is a little disappointing.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Media Analyst / Email Marketer
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Perfect for internal communication!

    Date: Nov 12 2020
    Summary

    I highly recommend Slack if you're looking for an internal communication software. There are so many different ways to use this software to make it work for you and your company.

    Positive

    - Ability to create private channels
    - "Apps" that you can connect to Slack. There are so many options to choose from (ex. Google Calendar, Monday, Ziflow, etc.) This is definitely my favorite feature.
    - Keyword alerts

    Negative

    I have used Slack for over 3 years and have not come across any issues!

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: IT Manager
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Ideal tool for team communication

    Date: Oct 23 2020
    Summary

    Slack gives a central operational platform where we can perform communication and integration of business tools. One thing I liked most about Slack is that it's a cross-platform software that makes handy to communicate especially on a mobile platform.

    Positive

    We can integrate tons of business tools such as currently we are using Zoom and Trello integrations. Using Slack gives us a proper spot to perform many business activities which saves time. It improves team communication.

    Negative

    The thing I don't like was its custom trigger option.

    Read More...
  • Reviewer Name: Giovanni C.
    Position: Web Developer
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Great for teams

    Date: May 23 2020
    Summary

    I have used Slack when working for different companies and every single time it was amazing.
    It's really good to post questions because you get answers quickly and you can get rooms to separate the subjects.
    It keeps an history of your messages and it is specially good when working in a remote environment because of how fast it is to do anything in Slack.

    Positive

    Easy to use for people into technology.
    Good tools.
    Great for remote teams.
    Way better than email communication for small messages.

    Negative

    Kinda hard to use if someone who isn't tech savvy.
    Need to have everyone on the team using it to be better.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Owner
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Can't Work without Slack

    Date: Apr 10 2020
    Summary

    Productivity has soared using Slack. We rely on it daily to keep us up to date on projects and reminded of tasks.

    Positive

    Extremely useful. Easy to search. Allows streamlined communication, rather than communicating by email. Love the reminders feature.

    Negative

    Can't search past a certain amount of time. But I think that's only come up once or twice in several years.

    Read More...
  • Reviewer Name: Rohan J.
    Position: Software Developer
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 100 - 499
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Easy to use collaboration tool

    Date: May 23 2020
    Summary

    Slack is a very good tool for communication between departments and co-workers. It provides a very good integration with G Suite which gives it an edge over its competitors.

    Positive

    Easy to use platform.
    Multiple channels and groups.
    Lots of third party app integrations are available.

    Negative

    For larger organizations with multiple channels and groups, it can be tough to manage notifications to the point that it becomes distracting.

    Read More...
  • Reviewer Name: Eli R.
    Position: Paralegal/Office Manager
    Has used product for: 1-2 Years
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Best work app ever

    Date: Oct 30 2020
    Summary

    This app has become extremely helpful at work. It has decreased the amount of emails we send each other

    Positive

    I love that I can create channels for each client and send messages, flag messages, and save messages

    Negative

    I wish i didn't need an extension app for task assignments

    Read More...