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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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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: September 10, 2026
Slack Business Instant Messaging Software logo
28,674 Slack Reviews
4.5 out of 5
Small Business (50 or fewer emp.)
Mar 06, 2024
 Source
Overall Rating:
5.0
YY
Yin Syuan Y.
Founder
Share
"Easy and fast to communicate with colleagues to discuss different tasks and projects."
What do you like best about Slack?

Huddle, it's fast and easy to just call the colleagues, no need to add personal social media or create Teams/Zoom meeting links.

What do you dislike about Slack?

Pictures in the conversation can not be replied on threads, so sometimes will be hard to select certain images. Will be very nice to add .gif function, to create more reaction within the company.

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

Communicate with colleagues who's out of the country or working remotely, it's easy to text or call.

Mid Market (51-1000 emp.)
Mar 05, 2024
 Source
Overall Rating:
5.0
Vilma B. avatar
Vilma B.
Finance Assistant
Share
"New era communication"
What do you like best about Slack?

That you can create group conversations and they will never deleted even if you loose it from your sight as soon as you start creating a conversation between people the history will still be ther. It can be easily accessed even from phone. I use it on a daily basis

What do you dislike about Slack?

The sounds. IMy prefwerence would be more sound options to chose

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

sometimes due to the internet connection the voice can be lost

Mid Market (51-1000 emp.)
Mar 04, 2024
 Source
Overall Rating:
5.0
WT
Werleman T.
Founder
Share
"Fast and effective communication"
What do you like best about Slack?

Easy communication with the work team and integration with other apps.

What do you dislike about Slack?

When the thread menu is selected it is a little complicated to locate the last one.

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

Integration with Jira, Google and Manifestly

Small Business (50 or fewer emp.)
Mar 01, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Slack @mentions and #channels change the way we manage our teams"
What do you like best about Slack?

Why do we love Slack's @mentions and #channels? Their ability to streamline the daily or real-time information flow. By using #channels as dedicated spaces for different topics, projects, or departments, we were able to centralize and ORGANIZE a framework where team members can collaborate, share updates, and discuss ideas. #channels facilitate real-time discussions, eliminating the need for lengthy email chains or scattered conversations across various platforms. This increment in transparency, knowledge sharing, and cross-functional collaboration in our company.

What do you dislike about Slack?

Huddle, slack built-in stand-up meeting tool is great to have audio meetings; but it's kind of glitchy when you use video or share your screen. If they improve that feature I think I probably get rid of Zoom!

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

By using Slack we improved communication and gain a stronger sense of cohesion within our teams. Slack has genuinely revolutionized the way we work, making it an invaluable tool for our agile teams by boosting team dynamics.

Mid Market (51-1000 emp.)
Feb 29, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great communication tool"
What do you like best about Slack?

Great communication, great integration, great features... I love it

What do you dislike about Slack?

It can be a little messy at first, but once you get used to it you ned up loving it

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

Communication between workmates and teams

Small Business (50 or fewer emp.)
Feb 28, 2024
 Source
Overall Rating:
5.0
EB
Elad B.
Founder
Share
"Our most efficient way to communicate in company"
What do you like best about Slack?

Easy to use, have DMs, channels, cross company channels, video chats, great integrations

What do you dislike about Slack?

multi party huddles can sometimes be weird. you don't know who called you, can't call someone.

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

Communication in the organization and with other organizations. Having subject based channels

Enterprise (> 1000 emp.)
Feb 28, 2024
 Source
Overall Rating:
5.0
BB
Bea Cathrina B.
Founder
Share
"Slack Review"
What do you like best about Slack?

Communication made easy. People from the organization can leave comments and status that helps us to determine what tasks were they on or their schedule. Created channels helps with faster communication via large size of receipients and pinned notes can be done too, topics and description can also be placed which is helpful to the users since they can differentiate on where they should be sending their message.

What do you dislike about Slack?

None. Slack helps us with daily tasks and easy communication. Highly recommended.

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

Communication can be challenging. Slack helps us determine the correct channels to reach out to and can easily check the status of the person we are trying to communicate from. Mentions between conversation can be easily seen that helps us respond timely

Small Business (50 or fewer emp.)
Feb 28, 2024
 Source
Overall Rating:
5.0
LS
Lucas S.
Customer Success
Share
"Centralized and effective communication"
What do you like best about Slack?

What I like the most is the fact that it allows me to have both private and individual conversations, while at the same time, we have various channels where we can communicate as a team effectively and clearly.

What do you dislike about Slack?

The point that leaves something to be desired, in my opinion, is that sometimes the user experience gets a bit overwhelmed with the amount of messages, notifications, and events that happen in the Slack environment.

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

Being the primary point of contact for my company currently, within our environment, we have channels for the entire company, channels for inter-team communication, channels to receive notifications and stay updated on our product's status, we receive customer feedback, and in addition to that, we get daily notifications from our agenda.

Mid Market (51-1000 emp.)
Feb 28, 2024
 Source
Overall Rating:
5.0
KS
Kyle S.
Founder
Share
"Primary Communication Platform"
What do you like best about Slack?

Very easy tool to use, and the functionality and ease of integration with other platforms is amazing.

What do you dislike about Slack?

I think like all communication platforms, it can become a bit messy with numerous channels, and lots of information being shared. This may be counterproductive.

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

Easy communication, quick messaging option, use it for internal phone calls or huddles and so much more.

Mid Market (51-1000 emp.)
Feb 26, 2024
 Source
Overall Rating:
5.0
GB
Ganesh B.
Founder
Share
"Slack Review"
What do you like best about Slack?

Slack help to connect multiple people in single call and helps to point out with arrow mark

What do you dislike about Slack?

in free edition we are not able connect multiple people in single call

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

easy to connect with people in slack call no need to share link to connect.

Enterprise (> 1000 emp.)
Feb 26, 2024
 Source
Overall Rating:
5.0
Umar B. avatar
Umar B.
Cloud Ops Engineer
Share
"Best communication tool in market"
What do you like best about Slack?

Best thing about slack is its cool interface, application design is awesom. Very easy to use. We can automate notification stop and start.

What do you dislike about Slack?

No difference between important and non important message. There should be some mechanism to send message with priority tag.

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

Team communication and collobration. It makes team worker much much easier.

Mid Market (51-1000 emp.)
Feb 26, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Final Success Landing on All Times Best (A.T.B.) Communication Arena"
What do you like best about Slack?

Ease of navigation. Simple setups. Multiple integrations. No compatability limitations on all devices. Reliable,highly knowledgeable and ever available customer support team.

What do you dislike about Slack?

On my nice experience,I have experienced zero challenge on this tool.

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

Ease of secure accessibility of information by all parties through BIM and video conferencing as well as documents sharing enhancing collaboration speed.

Small Business (50 or fewer emp.)
Feb 26, 2024
 Source
Overall Rating:
5.0
DW
Dora W.
Product Manager
Share
"Powerful project management."
What do you like best about Slack?

It provides both mobile and desktop version applications where mobile is installed to mobilephone so as incase of anything or situation our users may not miss important information. It offers free versions of its software which is suitable for our business hence saves us money versus competitors instant messaging products. It serves us alot since we are a marketing agency and have several contracts and clients who need faster communication and avoid long email threads making most of our projects to complete faster.

What do you dislike about Slack?

It serves us alot hence I don't see any dislike.

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

It has been easy to manage most of our projects since we have the appropriate tool example mobile phone owned by most of team members.

Small Business (50 or fewer emp.)
Feb 26, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great for work"
What do you like best about Slack?

Slack is a super good platform to communicate with coworkers etc.

What do you dislike about Slack?

Nothing bad to mention! Its a well rounded platform!

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

Its a all in one place to communicate with my team!

Mid Market (51-1000 emp.)
Feb 22, 2024
 Source
Overall Rating:
5.0
DW
Dominika W.
Talent Manager
Share
"Best way to channel all the noise"
What do you like best about Slack?

ease of use and channels you can create on the fly

What do you dislike about Slack?

a lot of "noise" that it creates with more than enough channels that are not easy to consolidate at times, given the number of users that can be added internally and externally

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

not too many problems , it helps with communication on the fly when needed

Enterprise (> 1000 emp.)
Feb 22, 2024
 Source
Overall Rating:
5.0
DD
Daniel D.
Founder
Share
"great app for communicating with team members quickly"
What do you like best about Slack?

it allows so many different forms of commnicating, sharing files, video chatting and emjois.

What do you dislike about Slack?

sometimes it states i have a unread message and i dont. not a big deal.

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

reducing emails

Enterprise (> 1000 emp.)
Feb 22, 2024
 Source
Overall Rating:
5.0
AG
Abhishek G.
Founder
Share
"best application for corporate interactions"
What do you like best about Slack?

The real-time messaging feature is a game-changer. Communication is instant, and the ability to create different channels for specific projects or topics ensures that discussions remain organized and accessible.

What do you dislike about Slack?

one common complaint is the potential for notification overload, especially in larger teams or busy channels. Users may find it challenging to manage and customize notifications effectively, leading to distraction and reduced focus.

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

easy to navigate. Setting up channels, direct messages, and integrations is a breeze, making it a user-friendly platform for both new and experienced users.

Mid Market (51-1000 emp.)
Feb 22, 2024
 Source
Overall Rating:
5.0
Saachi D. avatar
Saachi D.
Founder
Share
"Best communication platform for any team size"
What do you like best about Slack?

The most helpful thing I find about Slack is its integrations with a lot of other platforms. In my company, we had multiple integrations with slack, like asana, donut, small improvements, and what not. It makes it very very easy to track the notifications via slack as it makes the communication very quick when you're working.

What do you dislike about Slack?

I don't find any major downsides for slack but I do believe there's some room of improvement for the notifications part. Sometimes I do miss some texts on the channel because of too many texts and slack doesn't give continuous notifications.

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

We use slack for quick communications within the teams, or with individual teammates. Slack here helps a lot when there's a need to communicate urgent information to a larger audience with the help of channels, literally in seconds, no matter in what time zone the employees are.

Mid Market (51-1000 emp.)
Feb 21, 2024
 Source
Overall Rating:
5.0
RS
Robyn S.
Founder
Share
"The best way to communicate with colleagues and clients"
What do you like best about Slack?

The option to join multiple Slack spaces/organisations, using it both as a work communication, and networking tool

What do you dislike about Slack?

The inability to schedule recurring statuses

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

The need for fast communication with colleagues via text, video and voicenote. It offers super easy file uploads that I missed hugely having worked at an organisation that leveraged Teams for internal messaging.

Small Business (50 or fewer emp.)
Feb 20, 2024
 Source
Overall Rating:
5.0
SD
Sharlet D.
Brand Activation Manager
Share
"Slack functionality is a wow!"
What do you like best about Slack?

I pretty much love how Slack is simple to use and interact with the user-interface. It has a ton of robust features that streamline all communication means from instant messaging to online calls. At the beginning I had problems with it, but the support team came in hand and assisted with the hitch without delay, I was happy.

What do you dislike about Slack?

Frankly, Slack is the only tool that has worked wonders for me since deployment because all processes run smoothly without hitches.

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

I use Slack platform as my default communication channel with my colleagues and clients at work because it allows for effective messaging and video conferencing.

Small Business (50 or fewer emp.)
Feb 20, 2024
 Source
Overall Rating:
5.0
IJ
Isaac J.
It Program Manager
Share
"Get Slack For Team Collaboration"
What do you like best about Slack?

Since we joined slack, we have seen great change in our organization. Collaboration has been elected. Slack has wide range features that facilitate good communication. The user interface is very intuitive. Customer support is much supportive.

What do you dislike about Slack?

I haven't seen any dislike to give. Slack is all we needed is is working as expected.

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

With slack our communication is at another level.

Mid Market (51-1000 emp.)
Feb 20, 2024
 Source
Overall Rating:
5.0
BJ
Baishnabi J.
Developer Support Specialist
Share
"Streamlining Communication and Collaboration"
What do you like best about Slack?

Having used Slack in my workplace, I've witnessed its impact on team interaction and collaboration. Despite working remotely, our entire company is connected on Slack. It's like a digital hub where we can chat, share files, and keep up with what's going on.

What do you dislike about Slack?

It takes a lot to track all the different channels and conversations now that I'm part of almost all channels.

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

We've made separate groups for each project or topic, which helps keep everything neat and organized. Overall, Slack has really improved how we talk and collaborate as a team. Every team is on the same page.

Mid Market (51-1000 emp.)
Feb 19, 2024
 Source
Overall Rating:
5.0
MB
Michela B.
User Experience Manager
Share
"So flexible app to communicate, share clips etc"
What do you like best about Slack?

Easy to use and find relevant conversations and threads. Very useful for internal communication.

What do you dislike about Slack?

If you don't configure notifications correctly, you may feel overwhelmed with so much notification.

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

Creating channels open to team members allows us to effectively structure our discussions by project.

Small Business (50 or fewer emp.)
Feb 19, 2024
 Source
Overall Rating:
5.0
GP
Giorgi P.
Founder
Share
"Amazing communication tool for office work"
What do you like best about Slack?

Slack is a game-changer for team communication and collaboration. Its intuitive interface, organized channels, and real-time messaging make staying connected with colleagues effortless. The ability to integrate with other tools like Google Drive and Trello adds another layer of convenience. Whether I'm in the office or on the go, Slack keeps me connected and productive. It's simply indispensable for modern teamwork. I use Slack every day and I am very happy with it. Also, I cannot forget to mention the customer support, who is very helpful!

What do you dislike about Slack?

I can only mention one thing that I dislike, which is pricing, since it may be a little expensive.

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

Slack completely overcomes the distance barrier between colleagues, who are working in different countries, which is a great advantage.

Small Business (50 or fewer emp.)
Feb 19, 2024
 Source
Overall Rating:
5.0
RK
Rahul K.
Founder
Share
"Best team communication app that i recommend"
What do you like best about Slack?

It'scollaboration, integration and automation feature i like most.

What do you dislike about Slack?

It'sexpensive, especially compared to similar collaborative software. There is a free plan, but it's a bit limiting for businesses that need to access historical messages and documents beyond 90 days

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

Slack made easy to communicate with team members. It's mostly useable while working remotely.

Mid Market (51-1000 emp.)
Feb 18, 2024
 Source
Overall Rating:
5.0
AS
Ajay S.
Founder
Share
"A1 corporate communication app"
What do you like best about Slack?

best thing about slack is its intuitive interace as it allows teams and groups to communicate effectively, the capabilities of creating channels, threads, direct messages makes it very flexible for teams to communicate slack provides integrations with various crms which is of great help i use slack every single day and every professional and formal conversations with my teams are done on the same, im currently using both the pc and the mobile app slackbot, slacks own bot is one of my favv features of slack as it helps me to set reminders and timers for my work

What do you dislike about Slack?

costing is one major factors when it comes to drawbacks of slack but again the free version do provide some essential features, notifications settings to be managed and turned off properly as sometimes larger teams can flood unecesarry notifications

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

slack is allowing me to customize my entire app, i can put different emojis to potray if im out of office, if im in a meeting, if im sick and many morei can personalize my workspace and create a team/group of my own, can create threads, can set reminders, can manage different and multiple channels at once. slacks customisation and the search feature is unparalleled

Small Business (50 or fewer emp.)
Feb 16, 2024
 Source
Overall Rating:
5.0
RL
Romina L.
Founder
Share
"Excelente herramienta de comunicación para equipos distribuidos y remotos"
What do you like best about Slack?

Que es súper facil comunicarse con el equipo de trabajo, ya sea con un miembro o por un canal con diferentes grupos por diferentes temáticas de trabajo. Usamos Slack todos los días todo el día. Usamos las reuniones con voz y compartimos pantalla. También la usamos como repositorio de información para buscar temas. Se puede integrar con varias herramientas como Asana, lo que permite un mejor seguimiento de las tareas. También me gusta la manera de compartir archivos en los grupos y el manejo de estados que permite la herramienta.

What do you dislike about Slack?

No hay nada en particular que me desagrade de Slack, lo único que podría sumar es una agenda de reuniones.

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

Slack resuelve la comunicación con el equipo, tanto como chat para compartir informacion y comunicarnos diariamente, tanto 1 a 1 como canales de grupos, como tambien nos soluciona la necesidad de reunirnos para hablar y compartir la pantalla. Es realmente una herramienta esencial para el trabajo de equipos remotos y distribuidos.

Mid Market (51-1000 emp.)
Feb 16, 2024
 Source
Overall Rating:
5.0
SR
Stephanie R.
Founder
Share
"Obsessed with this tool!"
What do you like best about Slack?

Slack is the best enterprise communication platform out there. It integrated with so many apps in order to elevate the user experience. Love the emojis and gifs available, such a great way to make the workplace a little more fun and personalized. I use it all day long for work and even on weekends. It's a great way to communicate both for projects and for fun (donuts)

What do you dislike about Slack?

So many commands and automations to use, I feel like the Slack team could make availble more walkthroughs in order to accelerate the full potential of the platform for users.

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

Great way to connect internally with my coworkers, no more emailing and inboxes! Slack is much more user friendly.

Enterprise (> 1000 emp.)
Feb 15, 2024
 Source
Overall Rating:
5.0
AT
Anton T.
Founder
Share
"Best communication tool that I've tried"
What do you like best about Slack?

Easy to use and smooth. Status update is very handy during workdays to let coworkers know what I am up to.

What do you dislike about Slack?

nothing specific comes to mind. Nothing there to dislike.

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

Easy access to all my coworkers and easy to find and communicate to other teams.

Small Business (50 or fewer emp.)
Feb 15, 2024
 Source
Overall Rating:
5.0
Leslie Anne A. avatar
Leslie Anne A.
Operations/Sales/Media/Outreach And Communications
Share
"One of the best communication tool ever."
What do you like best about Slack?

This has been one of our super favorites. We use this to communicate internally in our organization. Simple, straightforward, highly functional and it has a nice look.

What do you dislike about Slack?

So far, Slack has allowed me to do everything I want to do using it. By sending files or just plain messages, Slack serves it purpose very well.

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

Ease of communication. This is a must have in every organization.