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What Is Slack?

Slack is your productivity platform.
Welcome to the command center of your workday. Discover a more flexible way to work with all your people, apps and partners in one space. Slack connects people with each other and with their tools and data. Equip teams to be their most efficient and productive—to save time, increase ROI and open up all kinds of opportunities. Slack isn’t just a tool for sending messages. It’s a place where work flows between all your teams, tools, customers and partners.

Who Uses Slack?

Our customers range from two-person startups to Fortune 100 corporations. In fact, 77% of the Fortune 100 uses Slack.

Slack Software - Slack channels
Slack Software - Slack search tools
Slack Software - Slack task creations
Slack Software - Slack video/audio calls
Slack Software - Slack mobile application

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Reviews of Slack

Average score

Overall
4.7
Ease of Use
4.6
Customer Service
4.4
Features
4.6
Value for Money
4.5

Reviews by company size (employees)

  • <50
  • 51-200
  • 201-1,000
  • >1,001
Emil Maltesen
Emil Maltesen
Head of Engineering in Denmark
Verified LinkedIn User
Information Technology & Services, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Easy to use but with many options

5.0 2 months ago New

Pros:

It is easier to use than most competing products. Very easy to integrate other tools as well.

Cons:

It can be difficult to navigate a high amount of channels and chats

Verified Reviewer
Verified LinkedIn User
Consumer Goods, 2–10 Employees
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Best digital workplace you need for a small or medium company !

5.0 6 days ago New

Comments: It’s part of our daily routine at work so I don't think we are getting rid of slack anytime soon.

Pros:

The instant messaging, the integration with API or other apps ( which in my point of view is very important ), the fact that you can use it as cloud docs management for your office are things that I mostly like.

Cons:

It can a bit frustrating finding docs, the search is not always responsive, but I can find my way around. The quality of the calls needs some work a little, but it's getting better, that's for sure.

Jon
President in US
Computer Software, Self Employed
Used the Software for: 1+ year
Reviewer Source

Slack is essentially advanced texting for business users

3.0 4 years ago

Comments: I started using Slack because my client required it. I find that it cuts down on my email dependence but I'm often frustrated when attempting to compose a message without standard elements such as tables, inline images, etcetrera.

Pros:

I like the ability to stay in touch with our users via whatever device I'm currently using. For example, I can respond from my home computer, tablet, work computer or via my phone. I especially like the ability to be notified of a new message via my phone where I can read the message on the phone but can step over to my laptop to reply. I also appreciate the ability to add an email thread to a Slack Channel by simply adding a slack email address (each channel has a unique email address) to the CC field when I reply.

Cons:

The biggest con for me is the extremely limited amount of formatting available to Slack messages. I can make a font bold and add links to files/images but I really miss the rich text features many similar apps provide. It's also frustrating to need to keep typing adding the user name(s) when I'm responding to a message. I'm assuming that this is by design but it would really be nice to be able to "Reply All" to a conversation thread. The desktop Slack application (running on Windows 10 Pro) has a "clunky" feel to it. It's written with a framework that allows the Slack developers to write HTML and JavaScript code that is essentially compiled into a Windows application and it definitely shows. Something as simple as selecting text is counter-intuitive (until you realize that it's essentially a web page mascaraing as a Windows application.

Yuliya
QA in US
Writing & Editing, Self Employed
Used the Software for: 2+ years
Reviewer Source

Slack is a great tool for team collaboration

5.0 3 weeks ago New

Comments: I like using Slack for communication on my work projects and as a chat with my friends. Slack is a valuable tool for communication and collaboration in the workplace and everyday life.

Pros:

One of the main advantages of Slack is intuitive interface. Also I like a channel based structure which allows teams to create a dedicated space for projects.

Cons:

When working in a large team with multiple chats I did experience a message overload. It felt like constant stream of notifications and it takes some time to manage them.

Matt
IT Support Specialist in US
Utilities, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Slack helps Pickup the Slack

5.0 2 months ago New

Comments: I like using Slack for internal team communications as it is simple and easy to use.

Pros:

What I like most about Slack is the ease of use and how simple/straight forward it is. I'm able open the application and connect to and talk with my teammates in real-time.

Cons:

Honestly, there is not much that I can say negatively about Slack because it just works. I'm able to accomplish my task with no problems