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Slack Business Instant Messaging Software logo
Slack
4.5
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Slack Reviews: 4.5/5 — Highly Rated

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:
AG
Axel Grubba
Founder
Slack Categories on Findstack
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Crevio
Sponsored
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(1)
Free plan available
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Ask Questions about Slack
What Slack is best for?
How does Slack compare to Zoho Cliq?
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
Admin Controls
API Access
Audit Logs
Bots and Automation
Calendar Integration
Contact Management
Customizable Notifications
Data Export
Desktop Access
Emoji Support
End-to-End Encryption
File Sharing
Slack Media
Slack - Slack Homepage
Slack Screenshots
Slack Homepage
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: October 22, 2026
Slack Business Instant Messaging Software logo
28,674 Slack Reviews
4.5 out of 5
Small Business (50 or fewer emp.)
Aug 15, 2023
 Source
Overall Rating:
5.0
Victoria H. avatar
Victoria H.
Content Manager
Share
"Slack: Perfect for any teams!"
What do you like best about Slack?

Having transitioned our entire team to Slack, it's evident how essential this platform has become for our daily operations. With channels, we can now maintain structured conversations for various projects, and it has genuinely bridged the communication gap between departments. As a growing tech firm, Bluewave Technologies is always on the hunt for tools that streamline our work, and Slack has proven its worth. A notable feature we appreciate is the integration capability; being able to connect our other work tools to Slack is an undeniable game-changer.

What do you dislike about Slack?

While Slack offers a user-friendly interface, there are limited opportunities for in-depth customization. For instance, the ability to further customize the layout, theme, or notification styles beyond the provided options could greatly enhance the user experience, especially for companies with unique branding or specific workflow requirements.

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

1. Disorganized Communication: Traditional communication methods like email can become cluttered and hard to navigate, making it challenging to find information and converse efficiently. 2. Fragmented Tools and Apps: With multiple apps and tools being used in a business environment, it's easy to lose time and focus when constantly switching between them. 3. Challenges of Remote and Flexible Work: The modern workforce is increasingly mobile and distributed, necessitating tools that support effective remote collaboration.

Mid Market (51-1000 emp.)
Aug 15, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Amazing tool for Companies of All Sizes"
What do you like best about Slack?

Super easy to communicate with people both if you are working in office or remotely. It is super user friendly and I love that you can chat with one or multiple people in your organization super easily along with hopping into a huddle when it's easier to talk out your questions or explaning what you are working on.

What do you dislike about Slack?

I wish you could remove users when doing a group chat like you can remove people from channels. It is a little inconveinenet with projects where you have multiple people and one gets moved and you have to create a new chat versus just removing that one person.

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

As a remote worker, it's super helpful for me to be able to instantly communicate with my coworkers that are located all over the country. It's made it streamline and I really like the product.

Mid Market (51-1000 emp.)
Aug 15, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"All day quick communication, video calls and replaced phones completely!"
What do you like best about Slack?

I don't have to use my phone anymore, and it saves my battery. it's super easy to communicate and organize various channels for specific projects, easy to find my company and connect with my team, huddles help in platform quick call clarifications, I constantly use to screenshare while editing, and quickly review to ensure we are in aligment and in the right direction.

What do you dislike about Slack?

sometimes the huddle quality can be glitchy and i notice its not happening on other video calls but also when using video calls the call can slow down my other programs and computer while simultaniously editing. thankfully hasnt happened lately but was a frustrating issue when it did.

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

communication acroess the entire team, or specific event / project channels, huddles make it easy to communicate via voice calls to quickly clarify any questions, it also helps share progress with screensharing to help clear direction, show someone how to do something, and especially collaborate with team memebers in various timezones and states.

Mid Market (51-1000 emp.)
Aug 15, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Team communication made fun!"
What do you like best about Slack?

It integrates very well with other platforms and the notifications are very helpful foo. The tagging, the @here option is very practical to make sure that everyone sees a message on a channel. My Favorite part are the customized emojis and reactions.

What do you dislike about Slack?

I get included in a lot of channels that are not relevant to my work, my left nav bar gets really crowded. Sometimes my time zone is not the correct one and I can't fix it.

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

The company has employees from different parts of the world, so it really eases communication. Also, it's easier for immediate conversations that are more complex to address in an Email.

Small Business (50 or fewer emp.)
Aug 15, 2023
 Source
Overall Rating:
5.0
Luis Carlos D. avatar
Luis Carlos D.
Ceo
Share
"The perfect tool for multiple projects chat"
What do you like best about Slack?

We can manage to have multiple project and have all the information ready for all

What do you dislike about Slack?

The paid version for small groups get outside of our budget

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

Communication between all developers and a business chat solution

Enterprise (> 1000 emp.)
Aug 14, 2023
 Source
Overall Rating:
5.0
Regina r. avatar
Regina R.
Latam Growth Coordinator
Share
"Slack for remote work"
What do you like best about Slack?

I like that Slack allows you to easily connect and explore within your work community. It is super easy to tag teammates, reach out to co-workers and create channels for specific topics. It makes networking easy and approachable. Very user-friendly and colorful.

What do you dislike about Slack?

I sometimes wouldn´t get all my notifications. I would only know I had gotten some messages once I opened the app or the website. Also huddle sound wouldn't always work as expected (poor quality). Aside from that, I think Slack is the best social network for remote work.

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

It´s like WhatsApp but for your workspace, which is awesome cause it feels professional but at the same time it is personal, customizable and user-friendly. I love you can react with fun emojis and make your workplace feel fun, fresh and young.

Enterprise (> 1000 emp.)
Aug 14, 2023
 Source
Overall Rating:
5.0
BR
Bobby R.
Junior Support Engineer
Share
"Once you go Slack. You won’t go back"
What do you like best about Slack?

Every day I see something that slack can do which other communication platforms can’t. They can do it all, and everything works.

What do you dislike about Slack?

I love everything about slack. It's a no fuss, easy to use communication tool which I spend 12+ hours a day on.

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

Be connected with everyone in my company throughpout the world. It enables me to perform my job twice as quick compared to using emails

Small Business (50 or fewer emp.)
Aug 13, 2023
 Source
Overall Rating:
5.0
Jae W. S. avatar
Jae W. S.
Assistant Professor Of Radiology
Share
"Community chat, brainstorm, idea exchange"
What do you like best about Slack?

Can incorporate group think and group share, easy to use and communicate, similar to texting.

What do you dislike about Slack?

Sometimes feels remote without a lot of personalized interaction

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

It feels like a forum where you can exchange thoughts, ask questions, and you feel like there is a broader range of exchange

Mid Market (51-1000 emp.)
Aug 13, 2023
 Source
Overall Rating:
5.0
SM
Shivam M.
Founder
Share
"Bringing teams together!"
What do you like best about Slack?

Ease of use, it does bring your team together by not being just a chat module, but you can have games, and news, integrate your CRM, inbound lead flow, polls, and whatnot!

What do you dislike about Slack?

Somehow their notification tone gives me anxiety. Also, the product is seamless but it does seem to take a lot of ram while using. But overall a great product.

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

My team can stay organized and productive. For example, users can create different channels for different topics or projects, and they can easily search for specific messages or files. Slack also integrates with many other tools and services, such as Hubspot, Stripe, etc. allowing users to centralize their work in one place.

Enterprise (> 1000 emp.)
Aug 11, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"workplace texting"
What do you like best about Slack?

My team communicates primarily via Slack. I love the range of emoticons and the ease of use.

What do you dislike about Slack?

The hard of hearing flashing screen could be better integrated. It hasn't worked yet.

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

Allows team members to communicate in realtime and avoid email box clutter.

Mid Market (51-1000 emp.)
Aug 11, 2023
 Source
Overall Rating:
5.0
ES
Eduardo S.
Founder
Share
"Fast and direct communication tool."
What do you like best about Slack?

It is a quick communication tool due to its simplicity, very dynamic with its objectives, easy to integrate with your schedules and to integrate with other platforms.

What do you dislike about Slack?

Sometimes there is a problem with the application and you end up having to use it within the browser, which makes it more difficult, but this is the only negative point.

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

Slack is helping to solve the slower communication at the home office, due to the dynamics of the app, it ends up solving this difficulty of working from home, making everything faster.

Mid Market (51-1000 emp.)
Aug 11, 2023
 Source
Overall Rating:
5.0
DR
David R.
Onboarding
Share
"Incredible Way to Communicate across teams"
What do you like best about Slack?

Communication: Our teams can have instant conversations and communicate easily Channels in Slack allow for organized communication around projects.

What do you dislike about Slack?

Nothing its so helpful and is used by our company everday

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

Slack is addressing several key challenges in the realm of workplace communication and collaboration, and its solutions have greatly benefited individuals and teams alike. Some of the problems Slack is solving include: Fragmented Communication: Old ways of connecting like email and instant messaging often lead to fragmented conversations spread across various platforms. Slack centralizes our communication into organized channels, reducing confusion and making it easier to follow and participate in discussions. Slack facilitates real-time communication, allowing team members to collaborate instantly, share insight, and make decisions quickly. This accelerates project timelines and enhances our overall productivity.

Mid Market (51-1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
AK
Arvind K.
Founder
Share
"Great for teams"
What do you like best about Slack?

Organisation management, chat, huddle, group, canvases, app integration

What do you dislike about Slack?

Account settings on web, it should be on app

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

Easy communication with remote workers

Enterprise (> 1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
DB
Daniela B.
Founder
Share
"Slack is the best tool for communicating internally"
What do you like best about Slack?

- Fast and informal internacional communications - Easy to use - it can sync with other app companies - you can talk with memebers of other companies

What do you dislike about Slack?

- really nothing, just sometimes my notifications turn off without me doing something.

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

that you can communicate fast between members of your company, avoiding too much formality you can resolve problems or tasks easier.

Mid Market (51-1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
HG
Hans G.
Controller
Share
"Redefining workplace communication!"
What do you like best about Slack?

Slack brilliantly redefines workplace communication with its unparalleled convenience and fosters collaboration like a symphony conductor. Seamlessly threading conversations, files, and tools into a single digital tapestry, it renders the days of scattered emails and disjointed chats obsolete. Its prowess in catalyzing cooperation is akin to a masterful storyteller weaving plots together – enabling teams to effortlessly harmonize efforts and transcend geographical barriers. In the orchestra of productivity tools, Slack's harmonious notes resound as a powerful anthem to the future of collaborative work.

What do you dislike about Slack?

If you don't like building community, you may not like Slack.

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

Slack has been a game-changer for me, solving the age-old struggle of scattered communication by consolidating chats, files, and tools in one place, streamlining collaboration effortlessly. It's transformed my workflow, allowing me to swiftly tackle projects while staying connected to my team, no longer lost in a labyrinth of disjointed messages and emails.

Enterprise (> 1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Slack is a game changer for collaboration"
What do you like best about Slack?

Slack Connect helps ensure that we can quickly communicate as a hybrid team for strong collaboration and engagement outside of our org. With the large amount of channels that we have love the ability to hide quickly channels with zero messaging. Compared to other IMs the breadth of integrations is amazing.

What do you dislike about Slack?

While tags and sections are great to use and flag urgency at times it would be good to be able to discerne between urgent and non urgent requests. This would be helpful on channels with large groups

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

Improved collaboration with real time engagement. A large challenged it addressed was the lack of transperancy/visibility as emails did not always engage all participants and the onus on the sender to copy or add users. With users in set channels it reduces risk of missing participants.

Mid Market (51-1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
LA
Luisa A.
Founder
Share
"Channels are very useful."
What do you like best about Slack?

You can have different open and private channels to keep all the info organise. You can also add folders to keep always the documents with you.

What do you dislike about Slack?

To make a call it is quite difficult with handle. Can not be a regular call? With the options to change a video call and share screen.

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

Communicate with my colleagues and get access to previous info via the #

Small Business (50 or fewer emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
Carey F. avatar
Carey F.
Director Of Services
Share
"Great way to open lines of communication at work"
What do you like best about Slack?

It's so easy to communicate and collaborate with my team, whether you are at your computer or out-of-pocket.

What do you dislike about Slack?

I'm not a huge fan of the login methods of having to open it in a browser. It would be great if logging into an instance was allowed on the platform itself.

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

It really opened communication lines with in-office and remote workers. My team can stay to up to date with all communication & news, and it's limited the amount of emails received and the wait time that goes along with that.

Small Business (50 or fewer emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
Cheri R. avatar
Cheri R.
Director Of Operations
Share
"Streamlined Communication and Collaboration Platform"
What do you like best about Slack?

Slack allows communication between our team. I love that it is seamless and keeps everyone connected. The real time messaging and the file sharing is amazing. It has helped our team and boosted our productivity since it allows for us to colloborate. It also helps us to be more organized.

What do you dislike about Slack?

Sometimes the multitude of notification can be overwhelming. it woul dbe great to have more control over the message sorting.overlal though it is great and has helped our team in communication.

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

Slack involced the problem of scatter communication and helps organize discussions making it easier to keep track and share ideas, conversions, thoughts, files and can collaborate easily.

Enterprise (> 1000 emp.)
Aug 10, 2023
 Source
Overall Rating:
5.0
AH
Aniruddha H.
Software Engineer
Share
"Slack - Streamlining Communication and Collaboration"
What do you like best about Slack?

As a software engineer utilizing Slack, the platform's greatest appeal lies in its seamless collaboration features. The huddle, code snippet sending, reply in thread feature, colorful texts and sticker, good status update option make it better than any other platform. It is smooth very to use.

What do you dislike about Slack?

The notification system in Slack should be better. The screen-sharing option is not up to the mark. When the internet is going disconnected mode the online status should adjust accordingly.

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

Slack addresses the challenge of efficient team communication and collaboration by providing a centralized platform for instant messaging, file sharing, and integrations with other productivity tools. The huddle, code snippet sending, reply in thread feature, colorful texts and stickers, and good status update option make it better than any other platform. It is smooth in use.

Mid Market (51-1000 emp.)
Aug 09, 2023
 Source
Overall Rating:
5.0
SC
Sophie C.
Client Experience Manager
Share
"Great tool for communicating with the whole team and wider company quickly/efficiently"
What do you like best about Slack?

Quick and easy to contact people in your team and across the company either by messaging directly or by posting in a channel. Also really great to segment topics and teams by having various channels. It's great that it can be integrated with so many systems.

What do you dislike about Slack?

No read receipts can be hard to know if your message has been seen, would be useful to have these as something you can choose to turn off or keep on. Direct messages can also get lost as they disappear from my view sometimes if I haven't spoken to a person in a while I sometimes forget. Would also be good to read a message and then put it back to unread incase I read something and don't have time to reply straight away.

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

Being able to contact your colleagues from your team and company-wide, without having to rely on emails or phone calls. Makes life easier for everyone, and easier to keep track of messaging.

Small Business (50 or fewer emp.)
Aug 09, 2023
 Source
Overall Rating:
5.0
JM
Juan Carlos M.
Founder
Share
"Slack, the perfect tool for my job"
What do you like best about Slack?

It is an easy tool, easy to understand, clean in the UI

What do you dislike about Slack?

Maybe, when you are starting, it can be a little bit hard the introduction... Maybe a video can make it easier

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

Profesional communication and coworking

Mid Market (51-1000 emp.)
Aug 09, 2023
 Source
Overall Rating:
5.0
KG
Kelly G.
Director Marketing
Share
"I love how Slack Streamlines Business Processes."
What do you like best about Slack?

I am amazed with how interactive and well outlined the User-Interface is. Slack is also flexible and allows for a seamless and smooth navgation. Incase of difficulty during deployment, Slack has a great and responsive team who deal with the issue in uttermost expertise.

What do you dislike about Slack?

To be frank, I have nothing ill to speak about Slack, it has been efficient and reliable for the time I have interacted with it.

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

Slack has been helping me in communication and collaboration processes, chatting, scheduling and participanting in virtual video meetings has been thorough and great.

Small Business (50 or fewer emp.)
Aug 09, 2023
 Source
Overall Rating:
5.0
ZH
Zulfiya H.
Founder
Share
"Marketing manager"
What do you like best about Slack?

Convenient work with the team quick notifications and responses

What do you dislike about Slack?

I don't have any bad comments on using this app, everything suits me

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

I haven't seen any problems using the app

Small Business (50 or fewer emp.)
Aug 09, 2023
 Source
Overall Rating:
5.0
CG
Casey G.
Founder
Share
"The best communication software I've used thus far."
What do you like best about Slack?

I love that you can choose between direct messaging OR creating a specific channel (or 6) in order to keep your departments in touch and organized. I also love that Slack connects to Canva, Google Cal, etc.

What do you dislike about Slack?

The only feature I dislike is that I can't see all of my direct messages on the left hand side from days or weeks prior. It filters them out after so many days.

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

Slack is allowing me to stay in constant contact with my upline which is actually reducing the amount of meetings we've had to have as we can chat throughout the work days.

Mid Market (51-1000 emp.)
Aug 08, 2023
 Source
Overall Rating:
5.0
BW
Bennett W.
Director Of Operations
Share
"B.Weber Thoughts on Slack in 2023"
What do you like best about Slack?

With Slack, it is way too easy to send DMs instantly over the internet. It integrates with external web conferencing services like Zoom which makes it easy to conduct online meetings.

What do you dislike about Slack?

For the past 13+ Yos, I have been with Slack and it rarely pose any flaw.

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

Business instant messaging. Direct messaging over the internet. File sharing and team collaboration.

Mid Market (51-1000 emp.)
Aug 08, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Best communication tool"
What do you like best about Slack?

Everything is a great tool with a lot of features and integrations

What do you dislike about Slack?

Anything, actually I love all of Slack, allows me to integrate other tools into my workspace

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

the communication in the company

Mid Market (51-1000 emp.)
Aug 08, 2023
 Source
Overall Rating:
5.0
KS
Kristin S.
Founder
Share
"K.Smith Slack Review Based on a Decade+ Expertise"
What do you like best about Slack?

Ever since I incorporated Slack, it has ever been straightforward and rapid to send direct messages which eradicate human movement and email chats in my organization.

What do you dislike about Slack?

In deed it should be glorified for adding video conferencing which eradicated the hussle for integrations.

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

Over the internet, I am able to send and receive direct messages on the go via mobile application.

Small Business (50 or fewer emp.)
Aug 08, 2023
 Source
Overall Rating:
5.0
Daniel T. avatar
Daniel T.
Website Designer & Developer
Share
"Slack - A Must Have"
What do you like best about Slack?

Slack is an easy way to instantly communicate with friends and colleagues. It allows easy transfer of files and so much more.

What do you dislike about Slack?

The fre plan limits what you can see for 90 days now which can be challenging for a smaller business.

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

Slack allows me to rapidly communicate with colleagues rather than email which can be slower and more distracting.

Small Business (50 or fewer emp.)
Aug 08, 2023
 Source
Overall Rating:
5.0
LG
Laura G.
Content Manager
Share
"Seamless collaboration made easy with Slack"
What do you like best about Slack?

Slack has completely transformed the way our team collaborates, making communication effortless and efficient. From the moment we integrated Slack into our workflow, we've experienced a significant boost in productivity and a notable decrease in communication barriers.

What do you dislike about Slack?

Can become overwhelming with excessive notifications if not managed properly (easily adjustable through notification settings)

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

Intuitive and user-friendly interface Real-time messaging and notifications Seamless integration with third-party apps Powerful search functionality Robust security features Customization options for a tailored experience