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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: Jonathan K.
    Position: IT 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 is a solid tool for team communication and collaboration.

    Date: Feb 28 2025
    Summary

    Overall, i like Slack because it allows me and my team to collaborate, and i like its ability to easily schedule messages with no limit.

    Positive

    Slack is one of the best and leading solution for team collaboration and communication. It's a brilliant tool that has made communication with colleagues easier.

    Negative

    There's nothing to dislike about Slack. My experience with it has been flawless.

    Read More...
  • Reviewer Name: Victoria E.
    Position: Digital Marketing
    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

    Streamlining team communication and collaboration

    Date: Jan 09 2025
    Summary

    It is a highly effective collaboration tool that drives productivity and streamlines communications.

    Positive

    It facilitates instant messaging making team communication faster and more efficient.
    Also it is easy in sharing files, images and documents within channels or direct messages.

    Negative

    Too many messages and channels can make it difficult to track important conversations.

    Read More...
  • Reviewer Name: Ronnie C.
    Position: Business Analyst
    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

    Perfect for communication. I recommend it

    Date: Feb 12 2025
    Summary

    I like Slack's ability to schedule messages without limits. It has made communication with workmates easy.

    Positive

    It integrates well with other communication platforms. It is a very convenient messaging platform and it makes team management so easy.

    Negative

    My experience with Slack was perfect, no negative thoughts towards it.

    Read More...
  • Reviewer Name: Bailey U.
    Position: Web Developer
    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

    Slack is a must have for collaborating

    Date: Apr 02 2025
    Summary

    It is an amazing tool since it keeps track of project and it easily connect one with team and integrate with other amazing softwares.

    Positive

    I like how it boost team collaboration through messaging,video conferencing and live chat.
    I also like how it saves time while joining chats.
    Amazing customer support.

    Negative

    I have nothing to dislike at the moment since Slack is absolutely amazing with it’s work.

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

    Perfect tool for team collaboration

    Date: Mar 02 2025
    Summary

    Overall, Slack is an excellent team collaboration tool especially if you have remote coworkers. In usability, it's great also the business plans are super cost-effective. Highly recommend.

    Positive

    I found Slack as a perfect tool for collaborating and integrating other project tools. The interface is clean and the best part is it's available on cross platforms. The setup process was straightforward and it allowed me to create a custom channel to share files, discuss and track progress related to my project with assigned groups.

    Negative

    I had a great experience with Slack, no major cons.

    Read More...
  • Reviewer Name: Maria P.
    Position: Director of Operations
    Has used product for: 1-2 Years
    Uses the product: Daily
    Org Size (# of Employees): 20,000 or More
    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 Has Been a Highly Reliable Solution

    Date: Apr 10 2024
    Summary

    Overall, I have a great experience with this amazing communication software.
    Slack promotes collaboration at our workplace.

    Positive

    Slack has been an effective and easy to implement communication solution.
    I like the safety features and accuracy of Slack.

    Negative

    There is no single feature that I do not like about Slack.
    Slack has been the best.

    Read More...
  • Reviewer Name: Angela R.
    Position: System Engineer
    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

    Slack review

    Date: Sep 17 2024
    Summary

    I love Slack as it makes internal communication easier and effective. Slack supports multiple great features that make communication easier and faster. Their customer support team responds quick when you contact them.

    Positive

    I use Slack on a daily basis and it allows me to collaborate with other colleagues and it has a slick design that makes it extremely easy to use. One thing i love most about it is the ability to create multiple channels where i can invite others to join and share ideas. Implementing Slack is easy and straightforward.

    Negative

    I have not yet encountered anything negative. I have nothing to dislike about Slack.

    Read More...
  • Reviewer Name: Maurice W.
    Position: Team Lead 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

    My experience with Slack.

    Date: Sep 15 2024
    Summary

    Slack is an exceptional tool for internal communication. It has a friendly and intuitive interface making it easy to use.

    Positive

    Slack is a superb and excellent tool that makes communication easier. I use it daily and what i like best about it is how it allows me to easily and quickly create channels and i can invite colleagues to join. Slack has an intuitive and user friendly interface making it easy to use.

    Negative

    I haven't yet experienced any challenges while using Slack so i have nothing to dislike about it.

    Read More...
  • Reviewer Name: ANis A.
    Position: Ownership Workflow Coordinator
    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

    The only tool we use for internal communication

    Date: Jan 02 2024
    Summary

    Extremely satisfied with what Slack has to offer, a complete tool for communication and quick collaboration. It also has the amazing call and screen sharing features, which lets you focus better without switching between many apps.

    Positive

    Slack is a tool with robust features and smooth functionality. From connecting your 3rd party apps with Slack channels, to easily allowing the team to communicate with external clients on Slack, it's a must-have tool.

    Negative

    There is nothing in particular that I disliked except that there could be a longer message history in the free plan.

    Read More...
  • Reviewer Name: Josephine A.
    Position: IT 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

    Slack is a game-changer when it comes to internal communication.

    Date: Sep 11 2024
    Summary

    Overall, i use Slack every day and i can really say that it's a brilliant and exceptional tool for internal communication. It had a slick design thus making it very easy to learn and understand.

    Positive

    I like Slack because it allows me to engage and interact with my colleagues at work. It's a brilliant and easy-to-use tool that doesn't require training to get started with. I like the ability to create channels and also i can invite my colleagues to exchange ideas. Installing Slack is easy and straightforward.

    Negative

    To be sincere i don't have anything negative to comment about Slack. It's a great and amazing tool for internal communication.

    Read More...
  • Reviewer Name: Mary N.
    Position: IT Specialist
    Has used product for: 2+ Years
    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

    Slack for internal communication.

    Date: Sep 11 2024
    Summary

    Overall, Slack is a brilliant and great application for internal communication. I have been using it for quite a long time and it has helped us to stay connected from different locations across the world.

    Positive

    Slack is one of the best and easiest applications for internal communication. It allows me to create channels and invite my friends and colleagues to discuss ideas. It is simple and easy to install, set up and start working. Slack has a great and responsive customer support team.

    Negative

    Until today I haven't experienced any challenges while using slack. Nothing to dislike.

    Read More...
  • Reviewer Name: Veronica G.
    Position: Project Manager
    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

    Excellent and solid tool for project management.

    Date: Dec 23 2024
    Summary

    Overall, i love how it allows me and my team to stay connected from anywhere anytime. It is easy and fast to create channels and i like that i can invite others. Slack makes internal communication easier and effective.

    Positive

    Slack is one of the leading solution for project management. What i like best about it is how it makes it easy for us to engage and collaborate. It's a brilliant and exceptional tool for internal communication. It is very easy and straightforward to install.

    Negative

    Slack is the best internal communication tool i have used. Nothing to dislike about it.

    Read More...
  • Reviewer Name: Joshua A.
    Position: HR 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 Revolutionary Team Collaboration and Instant Messaging Platform.

    Date: Sep 11 2024
    Summary

    It is simple to create collaborative team workspace using Slack. It enhances seamless team communication and collaboration. Slack keeps all our conversations secure and organized.

    Positive

    It is simple to send direct messages with Slack thus enhancing real-time team chat. It is simple and fast to share files with Slack. It is simple to create channels where teams can collaborate on their work assignments. It is simple to search files, channels, team conversations with Slack.

    Negative

    Slack lacks a video conferencing feature unless it's been integrated with Huddle to perform that function.

    Read More...
  • Reviewer Name: Mark B.
    Position: Frontend Developer
    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

    Powerful communication & collaboration tool

    Date: Jan 11 2024
    Summary

    Slack satisfies our needs to the full extent, we are using it to manage more than 30 projects while having them connected to apps such as Asana, Notion, and more. It allows us to automate our workflow.

    Positive

    Slack offers a variety of robust features that allow you to easily manage and collaborate on multiple projects, get real-time updates by integrating with external apps, and the pricing is acceptable.

    Negative

    The search function is a bit complex. Everything else satisfies to the full extent.

    Read More...
  • Reviewer Name: Pankaj B.
    Position: Customer Support Executive
    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

    Experience with Slack

    Date: Sep 27 2024
    Summary

    Overall I think, Slack has great connectivity. Great features like file sharing, message threads, etc. Good stability. Notifications are a little too much disturbing. Leaving that it's good.

    Positive

    Easy to use, even between different teams and lines of business. Great connectivity. Great features like file sharing, message threads, etc.

    Negative

    Notifications are a little too much disturbing. Rest fine.

    Read More...
  • Reviewer Name: Becky 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

    Unrivalled Internal Communication and Team Collaboration Tool.

    Date: Sep 12 2024
    Summary

    Slack is the best platform that provides a good way of communicating and collaborating with team in their workspace and channels.I use Slack to share files quickly.Slack is a good platform for remote work.

    Positive

    Slack enhances real-time team chat by sending direct messages (DMs).
    Slack offers a powerful search features thus making it simple to search files, channels, conversations etc.
    Intuitive and user-friendly interface.
    Ability to integrate with most productivity tools like Asana, Miro etc.

    Negative

    Slack delivers excellent performance and benefits thus I have nothing to complain about.

    Read More...
  • Reviewer Name: David S.
    Position: Information Technology Specialist
    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

    Instant and efficient communication

    Date: Oct 08 2024
    Summary

    Slack offers real-time communication through channels and direct messages. It offers advanced search options and notification customization, improving efficiency and organization.

    Positive

    I like how the organized channels allow you to divide conversations by project or topic, ensuring that relevant information is easily accessible. The advanced search features are especially useful for finding previous information and keeping up with conversation history. I have found it very useful for coordinating with colleagues remotely.

    Negative

    While Slack is powerful, the learning curve to get the most out of all of Slack's features can be steep for some users less familiar with this type of platform.

    Read More...
  • Reviewer Name: Eugene D.
    Position: IT Consultant
    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

    When it comes to internal communication, i highly recommend Slack.

    Date: Oct 09 2024
    Summary

    Overall, Slack allows teams to collaborate from anywhere anytime. I like its intuitive and user friendly interface which makes it easy to use even for new beginners. Also, slack has a great and responsive support team.

    Positive

    Slack is a brilliant and amazing tool for business communication. What makes it stand out from its competitors is flexibility, usability and reliability. I like how it allows me to quickly create channels and i can invite my coworkers to join from anywhere anytime.

    Negative

    I have been using Slack for many years and i have never experienced any challenges. It's a brilliant and great business communication platform.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Senior lead Product Marketing
    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

    Best official communication platform

    Date: Sep 07 2024
    Summary

    My overall experience has been very good so far with Slack. The mobile application is also very good and the UI is very much intuitive.

    Positive

    I like the voice and video call feature of slack. Also, the screen sharing abilities and the file transfer abilities of slack are very good and very much professional. I also like the fact that we can create channels with ease and communicate with our End users too.

    Negative

    I do not have any major dislikes with Slack. It is very simple and clean software.

    Read More...
  • Reviewer Name: Tamika M.
    Position: Chief Executive Officer
    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

    Completely solid work communication.

    Date: Nov 01 2024
    Summary

    There are very few negative things that I have noticed about Slack, as this has been a platform that has brought totally noticeable benefits to my IT services company, with the help of this platform, we have been able to grow over the last few years, we have had much stronger communication with the different work teams, we are a company that has many developers in both the web sector and the application sector, in addition, we also offer Data services and many more, which is why it is absolutely essential that our developer teams are fully communicated at all times, which is why we have continued to use this platform, since communication has been completely stable, we have been able to develop new projects for new clients, we have been able to improve our portfolio as a company and we have been able to generate projects in less time compared to what it used to take us before to complete a project. We believe that overall, this platform has been completely beneficial for our company and we will continue to use it in the long term. Our projects have been much more organized since we started using it, and we have also noticed how the work teams have had much more positive communication and interaction than before. Slack is the ultimate solution to improve work communication.

    Positive

    This platform has been one of the best for my work environment, due to the ease with which I can communicate with my entire work team. In our company, we have different work areas, since we are a technology company, it is very important for us to stay in communication with the different areas that oversee the technology services offered to clients. One of the biggest features that I liked about this platform were:

    1- With the help of this platform, I can create different communication and chat channels, where I can meet with different people around my company. This platform allows me to create separate communication channels, so each area of ​​our company has a different communication channel where there are different members. This function is completely beneficial for us. It is very important to divide ourselves in this way to be able to work together in a very simple way, so this is one of the most essential functions for us, since we can divide each of the areas of the company and establish a much more solid teamwork.

    2- Another feature that I loved is that this platform allows me to have meetings via video or audio, these meetings can take place within the communication channel that you have previously created with your team members, these meetings are quite stable, so you can communicate very easily with your team, share ideas, share solutions or share some type of specific information, there is no limit on the amount of time you can stay within each of the meetings, this greatly increases the probability that you have good communication with your team.

    3- I loved the way I can share all kinds of documents and work together through the communication channel, since I can upload a new document within this channel and work together with my team members, this document can be edited simultaneously by several members, which helps a lot so that we can work as a team within Slack.

    4- I also liked the list system within this platform, since this system allows me to manage, create and organize each of the projects that are being developed within my work team. This function allows me to consult the activity of each of the members, I can see in real time, each of the tasks that are being developed, as well as I can follow up on the assistance requests of each of my coworkers, whether to provide assistance in a specific task or in a specific project.

    Negative

    Slack has developed really beneficial features for my technology company, as it has provided me with a system in which I can correctly organize each of the tasks that we are going to carry out day after day, however, I have also presented some negative things within this platform, such as:

    1- One of the things that I have not liked about this platform is the poor accessibility it has when I do not have an Internet connection, since when I do not have a stable Internet connection, the platform does not reflect the messages that have been within my team communication channel. This means that I will not be able to consult old messages within the conversation with my work team, if I do not have an Internet connection, this is quite negative, and here on some occasions I need specific information that is within these communication channels and I cannot consult it due to the Internet connection.

    2- There are several shortcomings that can occur within the Slack application for mobile devices, the first deficiency is that this application does not show notifications in real time, which is why you will have different problems when receiving notifications at the exact moment when your work team wants to contact you, in addition, this application does not reflect the complete descriptions within the Chat channels that exist in your account, which will directly affect you since you will be confused when accessing specific channels when necessary.

    Read More...
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