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Slack Logo
Slack
4.5
(28,674)
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Slack Reviews & Product Details

Slack Overview
What is Slack?

Slack is the top choice for teams to communicate. It provides a virtual workspace that helps teams maintain open communication in a business environment. With Slack, users can host voice and video calls with up to 15 participants and even screen share with a desktop app, empowering better user interaction. Slack also supports options for private and group sessions, and one of its best features is Slack Huddles–an informal meeting space that lets you directly talk to your channel where you can share screen side by side with your team. The platform integrates well with Dropbox, Google Drive, and Trello as well.

Company Salesforce
Year founded 1999
Company size 10,001+ employees
Headquarters San Francisco, California
Social Media
Managed by:
Axel Grubba
Founder
Slack Categories on Findstack
Crevio Logo
Crevio
Sponsored
5.0
(1)
$29.00/month
Crevio is a platform for creators to sell digital products, services, courses and access to other 3rd-... Learn more about Crevio
Ask Questions about Slack
What Slack is best for?
How does Slack compare to Helpfull?
What are the pros and cons of Slack?
Slack Product Details
Capabilities
API
Segment
Small Business
Mid Market
Enterprise
Deployment Cloud / SaaS / Web-Based, Desktop Mac, Desktop Windows, Mobile Android, Mobile iPad, Mobile iPhone
Training Documentation
Languages English
Slack Pros and Cons
Pros
  • Allows users to access handy productivity tools.
  • Offers app integrations and API access
  • Comes with extensive security.
  • Lets users collaborate file sharing and video meetings
  • API allows software developers to create custom integrations
Cons
  • No course creation
  • Limited engagement options
  • Notification frequency is too high
  • Screen sharing and drawing tools aren’t supported on mobile devices
Slack Features
API Access
Admin Controls
Audit Logs
Bots and Automation
Calendar Integration
Contact Management
Customizable Notifications
Data Export
Desktop Access
Emoji Support
End-to-End Encryption
File Sharing
GIF Support
Group Chats
Integration with Third-Party Apps
Message History
Message Threads
Mobile Access
Multi-language Support
Real-time Messaging
Screen Sharing
Search Functionality
Single Sign-On (SSO)
Task Management Integration
Two-Factor Authentication (2FA)
User Mentions
User Presence Status
User Roles and Permissions
Video Calls
Voice Calls
Slack Media
Slack - Slack Homepage
Slack Screenshots
Slack Homepage
Disclaimer
Our research is curated from diverse authoritative sources and meant to offer general advice. We don’t guarantee that our suggestions will work best for each use-case, so consider your unique needs when choosing products and services. Feel free to share your feedback.
Last updated: March 14, 2025
Slack Logo
28,674 Slack Reviews
4.5 out of 5
Small Business (50 or fewer emp.)
Mar 22, 2022
 Source
Overall Rating:
5.0
Iaroslav C. avatar
Iaroslav C.
Product Marketing Manager
Share
"Essential work messenger"
What do you like best about Slack?

When you use Slack together with work infrastructure like Atlassian, it satisfies in almost every aspect. From free subscription (when you join any thematic Slack community) to paid plan (when you use it inside your team's workflow), Slack performs greatly on every kind of platform: from desktop to mobile device

What do you dislike about Slack?

Some little UI/UX moments like "the message contains couple of links, so Slack suggests to drop previews on each of them". Disregarding to that, every other aspect of Slack seems to be really optimal, handy and of use.

What problems is Slack solving and how is that benefiting you?

Slack helps greatly in teamwork, collaborating between different departments (e.g. marketing team and design team), can be successfully implemented into existing infrastructure (e.g. Atlassian). If we talk about free-to-join thematic communities, Slack also can be a better deal than Discord or anything else

Mid Market (51-1000 emp.)
Mar 22, 2022
 Source
Overall Rating:
5.0
KH
Kyle H.
Tech Support And Software Qa
Share
"Slack is a staple in the industry. Its mandatory at this point!"
What do you like best about Slack?

Communication and the ability to hook up integrations

What do you dislike about Slack?

nothing to complain about here. the downtime of their servers from time to time is frustrating but its not frequent

What problems is Slack solving and how is that benefiting you?

Remote work communication is perfect with Slack by our side

Small Business (50 or fewer emp.)
Mar 22, 2022
 Source
Overall Rating:
5.0
EM
Edwin M.
Sales Developer
Share
"Great app in order to connect with your team mates"
What do you like best about Slack?

the interface, the class, the integrations with other apps

What do you dislike about Slack?

The fact you don't accept a short answer in this question

What problems is Slack solving and how is that benefiting you?

communication

Enterprise (> 1000 emp.)
Mar 21, 2022
 Source
Overall Rating:
5.0
AS
Ashley S.
S
Share
"Slack is great for remote work!"
What do you like best about Slack?

I love the ability to use slack forms. Having group channels is amazing. The ability to huddle is great.

What do you dislike about Slack?

It is not initially intuitive to understand how to set up your channels and notifications. But once trained it is great!

What problems is Slack solving and how is that benefiting you?

We use it for all internal daily communications. It is effective to have team chats.

Small Business (50 or fewer emp.)
Mar 21, 2022
 Source
Overall Rating:
5.0
AB
Andrew B.
Co Owner
Share
"Excellent for team collaboration"
What do you like best about Slack?

The quick and easy way to alert our entire team or individuals about necessary information without it getting lost in the black hole of email. OUr entire team uses Slack as our default form of communication now over both email and SMS.

What do you dislike about Slack?

Searching for files or older messages can sometimes be a bit of a task. The search seems to default to attempting to find what they think you want, while not sorting by date it was posted by default.

What problems is Slack solving and how is that benefiting you?

24/7 communication. It gives me the ability to drop small messages to my team at all times of the day/night, and they will see them the following morning if they have quiet hours set.

Mid Market (51-1000 emp.)
Mar 21, 2022
 Source
Overall Rating:
5.0
SL
Sabena L.
Sdr
Share
"In times of remote work, Slack is king!"
What do you like best about Slack?

Being able to raise issues quickly with teammates. We usually move to email if it is serious. Helps to filter our inboxes down.

What do you dislike about Slack?

Slack can sometimes feel like you always need to be on, even when you are heads down, which can be distracting.

What problems is Slack solving and how is that benefiting you?

Solving the problem of no longer being able to tab a colleague on the shoulder regarding a question. The huddle tool is helpful for that!

Small Business (50 or fewer emp.)
Mar 18, 2022
 Source
Overall Rating:
5.0
Nitish . avatar
Nitish .
Cloud Architect Using Microsoft Azure Scholarship Program
Share
"slack superb tool to start tech or any community"
What do you like best about Slack?

Slack is one of the best team messaging apps, and it's a PCMag Editors' Choice pick. Slack is best tool i have used in my education community as well as business community.

What do you dislike about Slack?

some times its slow other than that its handling quite well all the task that are given to it. features that the provide are quite good but better if the services made bit cheap..

What problems is Slack solving and how is that benefiting you?

All business day to day task not only related to project but it helps in community buidup as well as audio feature is awesome and with no lag at all. Main problem i solved with slack is to keep colleague updated about what is update in project and what need to be done.

Enterprise (> 1000 emp.)
Mar 18, 2022
 Source
Overall Rating:
5.0
Marco P. avatar
Marco P.
Darkstore Supervisor
Share
"The work connection"
What do you like best about Slack?

Opportunity to keep touch with all my colleagues all around the world

What do you dislike about Slack?

Nothing, is an amazing platform for workspace

What problems is Slack solving and how is that benefiting you?

Communicate instantly with colleagues if need to ask a question or for help them

Enterprise (> 1000 emp.)
Mar 17, 2022
 Source
Overall Rating:
5.0
Richard P. avatar
Richard P.
Product Manager
Share
"Excellent product - probably the best work product I use, manage your notifications"
What do you like best about Slack?

UPDATE: By shipping quick video messages and audio messages with built in transcription and with huddles slack has made me update and give them a 10/10 they're the only one I've done this for. This helps to lead to the future of work. Instead of long detailed text or quick terse text you can make a quick vid and show your face to share context and tone and show on screen what you're thinking. Slack is very simple, searchable and convenient. If you didnt know slack is an aronym. Standard Log of All Communication and Knowledge SLACK. When a teammate left and I needed a comment I remembered him sharing all I had to do was search for the right channel that he made it, or even DM, where his email inbox becomes completely lost unless I was on CC.

What do you dislike about Slack?

Notifications and interruptions are a real risk. Establish boundaries, recognize the cost of task switching. Turn off as many notifications as possible and set intentional times to task switch to and away from slack. The proliferation of direct messages and private channels can be challenging but countered with a culture of openness. Cost can be a challenge, but a ton of value is being delivered for it.

What problems is Slack solving and how is that benefiting you?

A mix of synchronous and aa-synchronous and transparent and confidential communication. Often with images and links, threading to narrow in various channels. With videos and audio messages that are automatically transcribed slack has become an incredibly useful a-synch work communication tool. I prefer it to email so much its scary.

Small Business (50 or fewer emp.)
Mar 17, 2022
 Source
Overall Rating:
5.0
RC
Rony C.
Partner
Share
"Free tier is already awesome"
What do you like best about Slack?

much less email, great for collaboartion

What do you dislike about Slack?

it's easy to have too many channels ping you everytime, so make sure you don't create many channels. if you do so, you will end up not checking everytime, which makes it lose its purpose. Also, their search SUCKS! that's their main weak point, but the benefits overshadow them.

What problems is Slack solving and how is that benefiting you?

team collaboration

Enterprise (> 1000 emp.)
Mar 17, 2022
 Source
Overall Rating:
5.0
PL
Piyush L.
Data Engineer
Share
"Very trustworthy and fast communication"
What do you like best about Slack?

UI and addon features with 100% availability

What do you dislike about Slack?

as such no any point. so far good and reliable

What problems is Slack solving and how is that benefiting you?

team communication and messages

Mid Market (51-1000 emp.)
Mar 17, 2022
 Source
Overall Rating:
5.0
SR
Saile R.
Developer Ii
Share
"Once you go Slack, you never go back"
What do you like best about Slack?

Slack it's just the perfect tool to be connected with my team. We can go about our day and exchange async messages whenever needed or even a quick sync call, share our screens, documents, record screens and more. I love the fact that I can always check a thread and find what I need, regardless of the date the messages were sent, or if I am not in that specific channel!

What do you dislike about Slack?

I could only use slack for everything I need and I would be covered. All features work as promised. Keep adding integrations with other tools. Improving notifications.

What problems is Slack solving and how is that benefiting you?

Keep in touch and connected with my team, sharing important information and updates to go about our daily tasks. Send and receive documents, images etc. quickly...

Small Business (50 or fewer emp.)
Mar 17, 2022
 Source
Overall Rating:
5.0
JN
Jennifer N.
Finance Manager
Share
"Great communication tool"
What do you like best about Slack?

It's very helpful to have the option for group or individual messages. I also love that you can customize the notification settings and the way it connects to so many other productivity tools.

What do you dislike about Slack?

I honestly can't really imagine how slack could be improved. It gets better and better with every update and includes things that I wouldn't have even thought would be so helpful.

What problems is Slack solving and how is that benefiting you?

Slack has completely changed the way we communicate in our organization and share documents. It's really easy to jump on a quick call with someone and connect it to other platforms.

Enterprise (> 1000 emp.)
Mar 16, 2022
 Source
Overall Rating:
5.0
Yogendra G. avatar
Yogendra G.
Release And Qa Manager
Share
"Best communication platform ever"
What do you like best about Slack?

1. Slack allows me to create channels & set permissions/visibility on the channels 2. Slack also allows group chats 3. Slack has integration with zoom, google products and many more 4. Slack allows having more than one workspace. In a big organization, each division can use its workspace. 5. Slack allows audio/video calls as well 6. Slack has a very nice phone app 7. Slack has a very good search that can search through all the groups, individual conversations and channels. 8. Slack allows to pin important conversations 9. Slack allows to mute/disable notifications and allows to set working hours to disable notifications during non-working hours.

What do you dislike about Slack?

1. Slack is too powerful and big decisions can be made on the channels or group chats without making official note of it. Sometimes these important decisions can be lost in the conversation. 2. You can not search across all workspaces. You will have to go to each workspace and search for what you are looking for. 3. Slack's phone app can be sluggish at times. 4. You can not migrate chat history from one workspace to another workspace if you are moving to a new workspace.

What problems is Slack solving and how is that benefiting you?

1. Slack is solving communication problems in a hybrid/work-from-home environment. 2. Slack is reducing delays in sharing the information people have within the organization.

Small Business (50 or fewer emp.)
Mar 16, 2022
 Source
Overall Rating:
5.0
Pratik P. avatar
Pratik P.
Research Assistant
Share
"Great replacement for business emails."
What do you like best about Slack?

The user interface is very fluid. Variety of documents are supported for attachments. The ability to share code block is the best feature.

What do you dislike about Slack?

Desktop and webapp has some latency, altough it is not too much, but still is noticble. Also, when uploading .txt files one it dumps out the text input directly into the message instead of sending the file as it is.

What problems is Slack solving and how is that benefiting you?

Mainly the problems of collaborating with my colleagues from different time zones. It is very convenient to check the status and local time of your colleagues and communicate with them accordingly.

Small Business (50 or fewer emp.)
Mar 16, 2022
 Source
Overall Rating:
5.0
Stephany S. avatar
Stephany S.
Service Designer At Accenture Liquid Studio
Share
"Usability and ease of use"
What do you like best about Slack?

O mais util é a facilidade em estar logada em diversos workspaces com a mesma conta. Hoje nenhum outro software que tenho acesso me permite isso com tanta eficiência.

What do you dislike about Slack?

Não tem nenhuma desvantagem no uso. Inclusive, uso como canal de comunicação direta com meus alunos. Até para alguns que nunca usaram, sentem-se satisfeitos com a facilidade e o quao user friendly a ferramente é.

What problems is Slack solving and how is that benefiting you?

Ele resolve todos os problemas relacionados a comunicação de qualidade entre meus colegas de trabalho e alunos, assim como garante o compartilhamento de materias sem perder o histórico. E isso aumentou muito a qualidade de entrega dos projetos e agilizou a troca de artigos.

Mid Market (51-1000 emp.)
Mar 15, 2022
 Source
Overall Rating:
5.0
Jonathan J. avatar
Jonathan J.
Senior Software Architect
Share
"Nothing better"
What do you like best about Slack?

Integrations and ease of use are top notch. And they're working on a seamless Salesforce integeration, wich will make things run much smoother for my company.

What do you dislike about Slack?

Nothing that I can think of. It fits all of my needs.

What problems is Slack solving and how is that benefiting you?

Intraoffice communication is a snap. Helping to get everyone out of email, which is a HUGE relief.

Small Business (50 or fewer emp.)
Mar 15, 2022
 Source
Overall Rating:
5.0
TW
Tyler W.
Marketing Manager
Share
"Wouldn't know how our business would run without it."
What do you like best about Slack?

It's so easy to communicatew ith different teams whether it be different projects or remote workers through Slack's channels. It keeps everyone in the same loop and ready to go.

What do you dislike about Slack?

The one part of the software that is really lacking is the calling / video chat features. Often times you aren't able to pick up and we simply move the meeting over to Google Meet.

What problems is Slack solving and how is that benefiting you?

Easily being able to communicate with the teams / people that need to know about certain things through the channels features.

Mid Market (51-1000 emp.)
Mar 14, 2022
 Source
Overall Rating:
5.0
Sarah C. avatar
Sarah C.
Director Of Product Marketing & Thought Leadership
Share
"I love Slack!"
What do you like best about Slack?

Slack makes work communication so much easier! I love being able to transmit files, huddle, talk, and archive info in Slack. So much easier to use than Teams! I'd like to use Slack and get rid of email as much as possible.

What do you dislike about Slack?

The only issue I have is that the sound is sometimes hard to get going. This may be error on some of the users' part. But other than that, cannot come up with any dislikes.

What problems is Slack solving and how is that benefiting you?

Slack is great for group communication, and I like having it on my phone as well. I plan to have my entire booth staff use it for communication at a show in Las Vegas this spring.

Mid Market (51-1000 emp.)
Mar 14, 2022
 Source
Overall Rating:
5.0
CS
Chelsea S.
Enterprise Account Manager
Share
"Life line to our company"
What do you like best about Slack?

That you can add emojis and search for past things using the finder bar. Nothing is ever lost on slack! I also love how you can copy + paste a hyperlink into a word super easily

What do you dislike about Slack?

I dislike how once you released huddle, it as if slack made regular slack vidoe calls be less reliable. Also please add Zoom as an option for call such as is possible with googlehangout

What problems is Slack solving and how is that benefiting you?

Everything. Slack is pretty much the heartbeat of my company - CareRev. We would be lost in the work from home world without it. I have been using slack since 2017. It is a next level communication tool