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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: Subhan A.
    Position: React 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 great communication tool for colleagues.

    Date: Nov 22 2021
    Summary

    Overall, Slack helps a lot in getting in constant touch with the team members working together on a project or in the organization. It improves productivity and helps in targeting goals and achieving them.

    Positive

    - It is available on all the platforms so that it can be accessed on the go.
    - It improves the productivity a lot by connecting and getting updates from the team members.
    - Along with the chat communication, it also allows doing video meetings.
    - It is quite a popular software and supported by almost all the software for integration.
    - The look and feel of the software is modern and attractive.

    Negative

    - Sometimes the audio and video during meetings gets out of sync.
    - It is quite an expensive software for small startups and small organization.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Technical Operations 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

    Communication tool for professionals

    Updated: Feb 04 2021
    Summary

    In our daily use, Slack turns to be a reliable app to communicate with co-workers. Its UI and menu made best for the professional. The overall platform is best for business.

    Positive

    Slack offers us a unified team communication app to coordinate. It's the best solution for team communication. Slack has limitless integration support with business tools. You can integrate (Google Drive, Zoom, Salesforce, Asana) and more.

    Negative

    Slack itself works great, but the integrated tool doesn't work well.

    Read More...
  • Reviewer Name: Kausal T.
    Position: Marketing & Sales 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

    MULTIFUNCTIONAL TOOL

    Updated: Jul 02 2021
    Summary

    Slack gives us an organized software to communicate and manage other integrated platforms. It is suitable for any kind of business ( IT, manufacturing and others). Slack also works pretty smoothly on smartphone platforms. Overall, Slack is best in all aspects.

    Positive

    It offers one loop to revolve and manage other platforms without switching one by one. I enjoyed its communication functions. The smartphone platform also robust. You can import many supported platforms in its channel, also the interface was amazing.

    Negative

    The cloud backup support is not reliable. Also, gives less customization.

    Read More...
  • Reviewer Name: Radhika S.
    Position: IOS Developer
    Has used product for: 1-2 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

    Best communication tool for big organizations.

    Date: Jun 02 2021
    Summary

    Overall, Slack can be used to make groups, channels, and rooms to communicate between organizations. Though the UI can take time to get used to it, it is a very easy-to-use tool.

    Positive

    - It has quite good and easy-to-use UI and UX.
    - It comes with pretty useful tools for project management.
    - The translation tools help in communicating with people speaking different languages.

    Negative

    - It is a very battery-consuming software.
    - Limitation of storage.
    - Alerts don't always work properly.

    Read More...
  • Reviewer Name: Chetan B.
    Position: Mechanical Engineer
    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 for Corporate

    Date: Jan 31 2021
    Summary

    I have been using it for my college project. We communicate and discuss on slack. Overall we feel it is a nice and good app for formal and small meetings.

    Positive

    Let you start a sub conversation on a threat.
    Let you see previous as well as anyone conversation.
    Too much centric for professional space.

    Negative

    It does not fit for other than formal environment.
    It does not support adding all the participants in a video call at a time.

    Read More...
  • Reviewer Name: Peris A.
    Position: Lead Analyst, Marketing Delivery
    Has used product for: 1-2 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

    Top messaging software for internal communication

    Date: Feb 18 2021
    Summary

    Slack is best for team communication in today's modern workplace. It is perfect when looking for that quick response from your team members. It is available for both desktop and as a mobile app.

    Positive

    I use Slack to communicate with my colleagues throughout the day. All the co-workers who are involved with a client project are put in a specific channel for that client only making it easy to handle related topics.

    Negative

    Slack has numerous ways to notify its users when there are updates or messages and this can make you get sucked into every discussion.

    Read More...
  • Reviewer Name: Dominik R.
    Position: Senior Project 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

    Determines productivity through a set of actions

    Date: Apr 28 2021
    Summary

    We frequently use this software to feed our information repetitively and to be aware of what we have accomplished as a whole, thus giving the company a specific balance sheet of the daily activities being performed. Projects are managed straightforwardly, and we can have maturity in an administration that is reflected over time. It can be synchronized and configured quickly; it can be integrated with multiple platforms; I like it very much. I consider it a fundamental tool that many organizations should have in their work plan.

    Positive

    Talking about Slack is talking about constant improvement and performance; I can control the activities through interaction with other team members. I use it to know what my coworkers are doing on specific projects. The interface is lovely, has excellent themes, and you have a very dynamic effect that helps to appreciate a successful work.

    Negative

    Slack should be a little more specific when evaluating my support requests. They answer quickly but are repetitive when adding an accurate answer.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Student
    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 communication platform for workplace

    Date: Mar 01 2021
    Summary

    Excellent communication app. It is unmatched in terms of features and agility, and even the pricing is worth it for organizations to make communication easier.

    Positive

    Great tool for communicating with colleagues, collaborating on real-time projects, updating each other on work progress, and even connecting with managers and superiors. It works equally well for student groups and intern teams - basically any workforce or field requiring collaborative communication and real-time tracking of participants.

    Negative

    It really is feature-packed. I cannot think of anything I'd change, other than the quality of video conferences.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Machine Learning Engineer
    Has used product for: 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

    Great chatting and video app

    Date: Jun 16 2021
    Summary

    Free, easy to use, code formatting, fun emoji... I usually don't give a software 5 starts, but Slack will be the ONE. There are too many great to have functions of this app. A must-to-have communication tool for all programmers / engineers / researchers / students.

    Positive

    I love the marking feature slack during video call. I can use the virtual "pen" to mark on my colleague's screen and she/he can see where I mark. That's the most valuable function I love about this app. And code formatting and highlighting features are amazing!

    Negative

    I've used it for 2 years, not even one word on complaints. It's a perfect app for a programmer.

    Read More...
  • Reviewer Name: Katiuska A.
    Position: Marketing Manager
    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

    Direct communication for all kinds of discussions.

    Date: Jan 30 2021
    Summary

    My overall experience with Slack was really positive, I performed very well when sending and receiving all kinds of messages. Also, Slack allowed me to quickly modify my communication environment, thanks to its commands, I was able to save manual work. Slack keeps me in touch with colleagues within my company on a day-to-day basis, and I can conduct all kinds of discussions in just one second. It's very stable and easy to use.

    Positive

    One of the things I like the most about Slack is that I can do absolutely any configuration of the channels and the entire panel, just by using a couple of commands. I should place the sign "#" + whatever I want to do, and instantly, it is done. Thanks to the command system I can make any modification of the chat channels or their elimination, in addition, I can also delete or add new members to the channels.

    Negative

    I don't have a negative opinion about Slack, because this platform has performed impressive since I started using it, and the group communication it has provided me is unmatched. Slack has allowed me to complete any type of task as a group, have discussions with my colleagues, and much more.

    Read More...
  • Reviewer Name: Jesus C.
    Position: Corporative Sales Manager
    Has used product for: 1-2 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

    Great panel to communicate as a work team.

    Date: Feb 14 2021
    Summary

    I am satisfied with the services that Slack has provided me, communication in my company is a totally important factor and what helps us to grow and complete all kinds of business tasks. Slack has been a very good platform to communicate as a work team, this platform has allowed us to send and receive messages in just a few seconds, and so we can have conversations on any topic and we can also have discussions that helps us simplify the work of the company. Slack is a fast platform, its panel is very easy to use and the notification system is quite good.

    Positive

    One of the most notable positive features of Slack is the section that is below the main panel, in this section all pending messages, mentions and reactions, specific threads of conversations and also saved messages are shown, this section helps me to be able to visualize specific messages and to be able to know when or in which communication channel they have mentioned me. Another feature that I like about Slack is that it also has the ability to communicate with anyone around the world, no matter where that person is, just simply integrate them into a chat channel and you can immediately have one direct communication. Slack messages are receive instantly, which helps make communication totally fast.

    Negative

    Slack's search system is not optimized at all, this search system offers the user the opportunity to search for a specific message or search for some conversations on specific days, however, I don't like it because it takes a long time to search the various results and when you find messages, not all your searches appear, only a part of what you have found or the most outstanding messages. I would like to have a more optimized message search system that allows me to find what I am looking for.

    Read More...
  • Reviewer Name: Gaurav P.
    Position: Senior Software Engineer
    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 is the one of the most popular business communication software. Highly recommending!

    Date: Jun 19 2021
    Summary

    Slack is a good corporate messenger. There you can chat, create threads and groups and even call. Really helpful thing.
    Slack has been a great platform for communication, interaction and development of all kinds of tasks online, with the COVID-19, Slack has been a very important software in our company.

    One of the great features I would say has to be the amount of possible integrations it has. Slack has the largest collection of integrations I have seen in a software that offers a few option.

    - One to one communication
    - It is an excellent project management tool.
    - Backlog feature is awesome.
    - Group communication
    - Audio/video calling feature
    - Notification functionality
    - User interface is very easy.

    Positive

    Slack is the appropriate software for small, medium, or large organization. This software is capable of adapting to any work area and allows all sectors to maintain wide communication that helps them have a better sharing of information and data of great importance.

    Our whole organization is using Slack for internal conversation and file sharing between organizations. We can solve [any] problem by using slack in our community.

    - Awesome interface and easy in use!
    - We can manage/schedule the meetings.
    - File sharing functionality.
    - Notification feature is awesome.
    - Calling directly from web and from mobile app.
    - We can create customized channels.

    Negative

    Nothing to dislike. It is a one of the best communication tool in market.

    Read More...
  • Reviewer Name: Tehseen A.
    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

    Slack for productive communication among teams.

    Date: Sep 30 2021
    Summary

    Slack is the most used communication application among organizations and teams working on same projects. Its features are curated according to the needs of the teams. File sharing is easy and straightforward.

    Positive

    - The user interface of the application is clean and smooth across the devices on which it is available.
    - The 2-factor authentication adds an extra layer of user data security on the platform.
    - All types of files can be shared as an attachment or drag and drop.
    - Different channels can be created for different projects, resulting in an organized communication with the team.

    Negative

    - The mobile application crashes abruptly during meetings.
    - It is a bit heavy on the system memory, making it slow on a computer with less RAM.

    Read More...
  • Reviewer Name: Vidbhav K.
    Position: Senior Technical Support
    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

    Connects the organisation.

    Date: Sep 15 2021
    Summary

    It helps in connecting with teams through dedicated channels for different activities. It enables the user to collaborate by sharing documents easily.

    Positive

    - The user interface of the software is responsive and smooth all across different platforms.
    - There is two factor google authentication for extra layer of security.
    - Channels are easy to create and access.
    - Sharing of documents is straightforward and easy.
    - Calls can be made directly through mobile or web.

    Negative

    - Free version does not allow to save chats.
    - The search feature of the application is buggy.

    Read More...
  • Reviewer Name: Kuldip A.
    Position: Intern
    Has used product for: 6-12 Months
    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

    Best for educational Institutes

    Date: Feb 23 2021
    Summary

    You can edit, delete your messages, share files and securely chat with one to one or one too many. It is fast and very secure. It has a lot of handy tools.

    Positive

    I have used it for my studies, it is really helpful as a group of people can simultaneously chat with each other and can reply to a thread inside a conversation.

    Negative

    Video calling is not that great, could be improved and the participant limit in video cal is low.

    Read More...
  • Reviewer Name: Jeremy Z.
    Position: Human Resources Leader
    Has used product for: Less than 6 months
    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 is a diverse service for projects with different deadlines

    Updated: Mar 21 2021
    Summary

    Slack is as varied as any other service oriented to the administrative management of projects, but the interesting thing is the ease with which we can create panels and organize them, eliminating the limit you have of the project data once they are placed within those panels. Slack is good for connecting to collaboration services, which would serve to synchronize the team.

    Positive

    By using Slack after having used some other project management software, it is completely possible to import documentation from other projects without any problems with report formats, whose structure remains completely stable. With Slack it is possible to organize projects entirely from cell phones.

    Negative

    The speed of deployment of Slack is not the same from the web version than from the installation version (for desktops), since the web version consumes much more bandwidth resources, which makes it difficult to work if you are doing operations outside the Slack platform. From Slack it is not possible to apply surveys to the project's team of employees.

    Read More...
  • Reviewer Name: Humberto S.
    Position: COO
    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

    Best messaging tool for small and big companies

    Date: Jul 11 2021
    Summary

    I'd recommend slack as main messaging tool for any team looking for any. The way you can thread messages, store them in channels and avoid having infinite conversations in a single chat.

    Positive

    I've been in small and big companies and slack has worked for both as messaging tool. I like channel creation and management. It's easy to find messages since it has a powerful search engine. A lot of integrations available for other tools. It's cheap compared to other options in the market.

    Negative

    Voice notes would be good to add.
    Voice calls and conferencing need improvement, not many features aside screen sharing.
    For not "techie" people can be overwhelming to understand.

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

    I use this every day

    Date: Jun 11 2021
    Summary

    Overall, I would highly recommend Slack to anyone organization that is looking to improve their communication internally within teams, and across teams.

    Positive

    It’s an amazing software to maintain contact and different discussions at work, particularly with so much happening remote these days. Helps me keep in touch with my team and communicate with other individuals and teams across the organization.

    Negative

    Sometimes people can reply in a thread and out of a thread, so that can get confusing, but it’s more user error than a problem with the software.

    Read More...
  • Reviewer Name: Kelly C.
    Position: Independent Contractor Hearing Examiner
    Has used product for: 1-2 Years
    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

    Slack increases communication in work teams

    Date: Mar 22 2021
    Summary

    Slack provides an extensive set of functions in terms of messaging that make it the leading application of its kind, from personalized notifications to direct messages; it also adapts excellently to other applications. But in consolidating that unlike its competition its price is the highest.

    Positive

    Slack is an application that gives us an ease of communication within an organizational team, gives you options to share any type of files we want with our staff through messaging in closed, open or shared channels in addition to a variety of other functions.

    Negative

    This application is listed as one of the best when it comes to communication. However, it is purchased that it is not one of the most economical, making it clear that although it has a free plan, the limitations it presents are quite considerable compared to other plans.

    Read More...
  • Reviewer Name: Shazia S.
    Position: Full Stack Developer
    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 collaborative space for teams.

    Date: Aug 24 2021
    Summary

    Overall, Slack is the best team collaboration software that provides various features like instant messaging and file sharing.

    Positive

    - Slack is free to use and have all the features available for an efficient team collaboration.
    - Slack allows the users to create various channels and groups for different projects.
    - It can be easily integrated with other software programs for increased functionality.

    Negative

    - There is no feature to mention someone in the chat.

    Read More...