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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: Ruth Ann M.
    Position: Executive Director
    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

    incredible solution for large teams

    Date: Aug 17 2021
    Summary

    Overall, I'd highly recommend Slack, especially to organizations that either a) do a lot of virtual/remote work or b) have very large teams.

    Positive

    Slack completely changed the way I interfaced with my colleagues across a large organization. It allowed for a more democratic flow of information and real time feedback.

    Negative

    The search feature could have, at times, been more intuitive.

    Read More...
  • Reviewer Name: Ross G.
    Position: Senior Account Manager
    Has used product for: 2+ Years
    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

    Intuitive and effective communication channels to foster collaboration among colleagues

    Date: Apr 24 2021
    Summary

    Slack is what we needed for workgroups to stay segmented and provide their views and opinions in the right work channels. It's extremely easy to use, saving users time while keeping them sharing information and moving projects forward. It has been of great benefit in keeping our productivity at its peak. The customer service is very good, and it works great. You will enjoy it as much as we do.

    Positive

    I love how intuitive Slack is and how easy it is to create channels to discuss, debate, and provide views of ongoing work and projects; it makes communication and collaboration more fun and effective; since using it, I have had no problem staying connected with my colleagues and moving our projects forward to meet goals. Slack also has excellent customer service.

    Negative

    An integrated video conferencing feature would be a plus, and in my opinion, the only thing this tool lacks to be the most complete of its kind. It is excellent, and everything within Slack works efficiently.

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

    Perfect tool

    Updated: Jan 30 2021
    Summary

    Overall, Slack is a great tool for team interaction and management of resources on a single screen. I loved its cross software support. Highly recommend it for professionals.

    Positive

    Slack became a very important tool in my organization. It gives us a resourceful place to interact and deploy other tools in the same channel. It's super easy to use and works in multi-platforms. The user interface is also great.

    Negative

    No negative to share about Slack. It does my job easy.

    Read More...
  • Reviewer Name: Mathew W.
    Position: IT Support
    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

    Office Based connections that work

    Date: Sep 04 2021
    Summary

    If you can afford slack, it's an unbelievable software for teams to work together. If you cannot, the free model works very well, losing only history of text and files.

    Positive

    Slack is an easy way to bring teams from all over the globe together in real-time discussion to help solve problems on the go, fast and easy.

    Negative

    Incredibly expensive pricing models with no leeway for non-profits or volunteer teams. The free model works, but only so well.

    Read More...
  • Reviewer Name: Clarissa H.
    Position: Benefit advisor
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 500 - 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

    I love Slack

    Date: Jun 10 2021
    Summary

    Overall the Slack app and desktop version both work great and fast. Hardly experience any type of lag or delay when sending messages and the layout is easy to use and very well organized. Would recommend to any company to use.

    Positive

    Runs smooth and lets you organize your group chats by category which makes is so much easier to find the information you need when you need it. I love how easy it is to use and it's a great way to keep communication running smoothly between coworkers and managers in remote job settings. Would recommend to any remote company looking for an easy way to communicate with their employees.

    Negative

    Hardly have any cons that I can think of, occasionally I have experienced a slight delay or freeze in the app but that has only happened once over the last 9 months so overall there are no cons I can say about this app.

    Read More...
  • Reviewer Name: Steven R.
    Position: Senior Remote Freelance Content Writer
    Has used product for: 1-2 Years
    Uses the product: Weekly
    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

    The right platform for collaboration and work communication is Slack

    Date: Mar 27 2021
    Summary

    In concrete terms, this tool provides us with a unique communication opportunity; offering us totally open channels with permanent availability to exchange information between employees and facilitate operability, although no calendar management is set to specify the time that must be used for each task.

    Positive

    This application offers an optimal communicative collaboration through channels that integrate tools and files. It has options for information transfer through messaging or allocation of any type of files. It also has conversation threads that allow us to have parallel communication without hindering the main one. It is an excellent tool that unifies the internal communications of our company; physical or digital to optimally manage all the obligations that sharpen a labor stability that, in case of doubts, you will always have a channel at your disposal to consult with supervisors or collaborators.

    Negative

    Two of the most notable problems of this application are first a lack of calendar management within the channels, tasks and projects are scheduled, but without date specifications. On the other hand, it does not provide a hierarchy system within the chat to delegate a collaborator to manage the flow of content.

    Read More...
  • Reviewer Name: Melanie T.
    Position: Finance Assistant
    Has used product for: 1-2 Years
    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

    I love the way Slack communicates with my team.

    Date: Feb 24 2021
    Summary

    My overall experience with Slack has been pretty good. When I started using this platform, the adaptation process was quite fast, since it is not a difficult platform to use, the configuration of the chat channels is quite simple and to configure the communication in a general way in all the channels, it is easy. In addition, Slack offers a perfect notification service, which keeps us attentive to any mention, any pending message to read and any movement in the chat channels. I love Slack, his ability to communicate with my team is impressive.

    Positive

    In our company, Slack is implemented in all work areas, in this way, all areas can be mutually communicated and there can be a greater flow of data. One of the features that I like about Slack is that this platform offers me a chat in real time, in all chat channels, this has allowed me to send and receive messages instantly and thus be able to have direct conversations at all times, without any kind of delay in receiving messages. In addition, I really like Slack's notification system, as it can let me know which chat channel I have recently been mentioned on and it also sends me instant notifications for when I have pending messages to review. Slack is impressive, and his ability to keep in touch with my colleagues is also impressive.

    Negative

    I've never had a problem with Slack working. This platform is correctly optimized and it has always provided a fluidity when communicating with my work team. The chat channels always remain active and this allows that there can be a perfect sending and receiving of messages continuously. I will continue to use Slack, since it benefits our group communication so much, I hope it continues with this good behavior and never gives me any type of errors during the communication process.

    Read More...
  • Reviewer Name: Stephanie I.
    Position: Accounting Manager
    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

    Great Resource

    Date: Sep 16 2021
    Summary

    Slack is a great tool for collaboration.

    Positive

    Easy to use, search feature is nice, app is very convenient. Ability to message individuals or specific groups. Integrates with other programs and bot capabilities help with important reminders.

    Negative

    I have no complaints, Slack works as it should and is a helpful tool.

    Read More...
  • Reviewer Name: Sierra Z.
    Position: Office Technology Manager
    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

    Good instant message tool

    Date: Dec 23 2021
    Summary

    Overall a good communication platform that is used heavily by my org. The biggest ask is that they role out new features to both web/desktop and mobile at the same time. It's frustrating to try to use a new feature only to have it tell me it's not available for mobile yet.

    Positive

    * Custom statuses
    * Public & private channels
    * Integrations with zoom/google calendar
    * Customizable notification options

    Negative

    * Cannot manage private channels as an admin under the free non-profit plan
    * Cannot schedule send on mobile (yet..?)

    Read More...
  • Reviewer Name: Hassan J.
    Position: Product Manager
    Has used product for: 1-2 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

    For group discussions

    Date: Feb 04 2021
    Summary

    It is totally for professional or conversation between the group, you can have individual chats and calls, but it doesn't fit best for it. But for broadcast and group chatting, it is perfect.

    Positive

    Suppose you need to convey your message as a broadcast in groups. It fits very well. You can send a message, and one can have a conversation in the text message itself.

    Negative

    The free version does not provide enough access, so you can use it and decide whether you want to buy it or not.

    Read More...
  • Reviewer Name: Areeqa H.
    Position: DevOps Engineer
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 500 - 999
    Feature Set
    Layout
    Ease Of Use
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Social Media For Developers.

    Date: Jul 21 2021
    Summary

    Overall, Slack can be used as a communication tool for whole organizations. In Slack, multiple channels can be created for, multiple projects.

    Positive

    - The quality of media does not get degraded while transferring through Slack.
    - Slack is available on all the platforms, including mobile and tablet.
    - Calls can be initiated directly from web app or mobile app.

    Negative

    - It is hard to keep track of the conversation happening within the channels.

    Read More...
  • Reviewer Name: Karla G.
    Position: Marketing Specialist
    Has used product for: 2+ Years
    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

    Keeps the team working in one direction.

    Date: Feb 15 2021
    Summary

    With the help of Slack I can maintain orderly communication with this instant messenger that can be structured very easily. It has facilitated collaborative work between employees, as well as being able to communicate between departments to share information with instant responses. Slack has been quite important to my company when it comes to not being able to meet to discuss between work teams due to the quarantine.

    Positive

    I like it because I don't miss out on talking about one project or another thanks to the creation of channels and that all the conversation is well structured and organized. The integration with Hubspot is excellent since it maintains two platforms that I use in one and thus not have to pass information manually. I can also communicate with my work teams about something about the company or any type of conversation since the information can be separated. If I want to search for information within the channels, it is very easy with a search engine, it is not necessary to ask the question twice and thus avoid confusion.

    Negative

    Sometimes I have problems searching for certain information within so many channels. Yes, there is a precise search engine for that job but it would be better to be able to save messages or store them in a place called "favorites" and to be able to tag them for an even faster and smoother search. That would be my only drawback with Slack.

    Read More...
  • Reviewer Name: Samantha H.
    Position: Digital Marketing Specialist
    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

    Great free communication platform

    Date: Oct 01 2021
    Summary

    It helps our team to feel connected even though most of us work remotely. I am thankful to be able to resolve work issues more easily due to the quick communication.

    Positive

    My colleagues and I use this app every day. It allows us to communicate freely and quickly about work.

    Negative

    The group messages have a limit of the amount of people, so you have to create a channel if it goes over the max.

    Read More...
  • Reviewer Name: Mark J.
    Position: Marketing Assistant
    Has used product for: 1-2 Years
    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

    Stable connection for open communication with colleagues.

    Date: Feb 17 2021
    Summary

    My experience with Slack has been regular, because as I mentioned earlier, the mobile phone application that Slack offers me does not send me notifications about everything that is happening in the messaging of the sectors of my company. Slack has been a really good platform, I have been able to communicate with my colleagues without any delay in sending or receiving messages and I have also been able to enjoy great stability in the chat channels, I have never had any fall during a conversation or discussion with my work colleagues. Slack is quite fluid and its user interface is too comfortable for anyone.

    Positive

    I am a Slack user, I use this platform in order to communicate with my entire work team and be able to promote the connection of all work teams. Slack has been a really good solution since it was implemented in our workplace, because I have been able to connect with my colleagues directly. What I like the most about Slack is that this platform allows me to edit all the chat channels and also make changes to the members of the channels, just by using commands. By placing the # symbol, I can access a wide variety of commands that make my stay in Slack more complete and I can make modifications more easily.

    Negative

    I'm not getting as many notifications from Slack on my mobile device. The notifications with the computer version, which Slack offers me, sends me notifications when they mention me in a chat channel or when they send messages in a channel that I have not muted, however, this experience is not the same when I use Slack in my mobile device. On my phone I use Slack to communicate with my work colleagues when I am out of office hours, however, I do not receive notifications when I have pending messages in a chat channel or when they have made changes to the channels, I only receive notifications when I mentioned in some message.

    Read More...
  • Reviewer Name: Alejandro M.
    Position: Project Manager
    Has used product for: 2+ Years
    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

    Slack is an organized communication zone.

    Date: Feb 22 2021
    Summary

    Slack has been able to help me channel all the information that is handled within the company, this has strengthened internal communication and growth for the correct and clear transmission of information. This platform has been able to establish an organized conversation by allowing no work team to select the channels they are interested in or need for feedback on a project without having overwhelming chats that hinder the work flow.

    Positive

    It facilitates communication in the development of collaborative work. It has third-party integrations that allow me to keep everything in one place, such as integration with zoom or Google applications. I like it because it is a good option for communication between external teams. It is very fluid, I have not had any problems due to platform failures. I can both zoom and chat on the Slack platform at the same time.

    Negative

    It is a bit difficult to find a conversation in old chats, it takes a bit of time if I need old information. The threads function is a bit poorly done in the sense that sometimes I get confused or lose the thread when everything is published in the same thread, this prevents me from being informed of the new publications that are made.

    Read More...
  • Reviewer Name: Chandra S.
    Position: UX Developer
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 500 - 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

    A unified workplace communication software.

    Date: Aug 07 2021
    Summary

    Overall, Slack is the best software for workplace communications because of the oriented features it provides.

    Positive

    - The best feature about Slack is that it is elastic and supports integration with many third-party software products for additional functionalities.
    - Multiple channels can be created within the groups for more organized chats.
    - Files can be shared by drag and drop.

    Negative

    - There are occasional connection issues during audio/video calls.

    Read More...
  • Reviewer Name: Zeeshan I.
    Position: Java Developer
    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

    Instant chatting application for teams.

    Date: Dec 21 2021
    Summary

    Overall, Slack is a feature packed communication application crafted especially to be used by working professionals. The application is secure, and the user interface looks attractive.

    Positive

    1. Slack is one of the best tools to connect with colleagues and share important documents securely.
    2. Along with chat feature, Slack also offers seamless and uninterrupted audio and video calling.
    3. The application supports two-factor authentication and is very secure so that the teams can exchange confidential documents and ideas among them securely.

    Negative

    1. Sometimes the application freezes and restarts abruptly in between the process of sharing files in the group.
    2. There are occasional delays in the notifications.

    Read More...
  • Reviewer Name: Vidya B.
    Position: Product Manager
    Has used product for: 2+ Years
    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

    A professional tool for communication.

    Date: Nov 23 2021
    Summary

    Slack can be used as a primary communication tool for team members in any organization. The features it has makes the communication more informative, less time-consuming and overall it increases the productivity.

    Positive

    Slack is quite a useful tool for communication between team members, regardless of the organization size. It is a versatile application with various useful features that adds value to the organization. Slack doesn't leave an inch of possibility of communication gap between members. The price of the subscription is affordable and really worth the money spent.

    Negative

    There are some minor cons that I faced in my usage, the icons are too small in the mobile application that leads to accidental touches. Other than this is a must-have application for any organization.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Senior Implementation Consultant
    Has used product for: 2+ Years
    Uses the product: Daily
    Org Size (# of Employees): 500 - 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 keeps remote teams close in the remote world

    Date: Apr 13 2021
    Summary

    We've had Hipchat and Cisco Spark before and neither received accolades in the company. Slack was quickly adopted by the masses and everyone is enjoying it. The app has tons to offer and definitely makes team collaboration legit in the current remote world.

    Positive

    Very intuitive interface (aka glorified IRC), lots of 3rd party integrations and addons, multiple platforms supported, audio and video calling, and frequent updates.

    Negative

    There were some serious outages in the last year and the mobile app is pretty slow these days.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Sales Manager
    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

    Slack is for today, but built for tomorrow

    Date: Feb 16 2021
    Summary

    Overall this is a must-have literally for any tech business right now. It was built by developers for developers and it is top-notch in keeping a remote dev team connected.

    Positive

    This is a must-have for any desk-based team, especially right now. Emails are great but this is the best way to share files and messages quickly and jump right into a call if needed.

    Negative

    The audio calling is not as reliable as other calling software. Otherwise, for chat, this is great for desk-based teams or desk-based remote teams.

    Read More...