Slack Features List

Slack Reviews

Slack

Team communication for the 21st century

4.6/5 (1,616 reviews)
44,929     282,940

Slack Feature Summary

  • Create open channels for anyone on your team to join
  • Support for private groups and 1:1 direct messaging
  • File Sharing
  • Deep, Contextual Search
  • Always In Sync
  • Mac, Windows, Android, and iOS apps available
  • Nearly 100 integrations
  • Open API to build your own integrations
  • All data transfer is encrypted
  • Desktop & mobile messaging
  • Notifications
  • Chat
  • Chat functionality
  • Real time updates
  • Drag & drop interface
  • Search functionality
  • Real time notifications
  • Collaborative workspace
  • Tags, keywords & @mentions
  • Audio / video conferencing
  • Two-way audio & video
  • Personalized profiles

Slack Features In Depth

Real-time messaging

Slack is best-known as a real-time messaging platform for teams. In addition to facilitating open conversations between groups of people, Slack also offers the ability to conduct private conversations in a one-on-on setting and within smaller sub-groups. (These sub-groups are ideal for handling more sensitive topics that may not apply to everyone in the company.)

Login to Slack to start participating in a group conversation. These conversations will replace lengthy email threads, and they enable you to work more quickly when communicating with large groups of people. Use the @mention feature to tag a specific colleague within the context of a larger conversation, or add an emoji to demonstrate how you’re feeling at the time when a message is sent.

Team channels

Communication within Slack is divided up into channels, private groups, and direct messages. Channels are the place where open conversations take place. These conversations are easily archived and searchable.

Anyone can join a channel, including team owners, admins, and regular users. However, you do have the option to prevent users with restricted access and single-channel guests from searching specific channels. Clicking on the information icon for each channel pulls up information about that channel’s purpose, along with the ability to add other users and browse shared files. The information icon is also what you’d select to leave any channel.

Drag-and-drop file sharing

Slack has developed a method for quickly sharing files of all types. Users can drag-and-drop files from their computers, or the cloud, directly into Slack. Slack supports PDFs, images, and videos, along with many other types of files.

Once you’ve shared a document with your colleagues, get ready for the feedback. With Slack, your colleagues can comment on the file you’ve shared. These internal discussions can take place through the comments section. You can also add stars to the documents your colleagues have uploaded to mark which files you’d like to keep handy for future reference.

Indexing and archiving

Slack automatically indexes and archives everything that goes on within a team’s account. This includes all messages, notifications, and files. Slack also indexes the content of every document that’s uploaded, which means users can search for keywords contained in specific PDFs or Word documents.

When you use Slack, you don’t have to worry about accidentally losing track of an important file, even after the group discussing that file has been disbanded. Private groups can be archived or closed after they’ve served their purpose. Archiving a group removes it from the list of available groups, but keeps all data secure for future reference.

Contextual search

The search features in most email platforms are not robust enough to handle the needs of growing organizations, which is why Slack has developed its own contextual search tools. Users are able to search for keywords across entire team archives, or within specific documents, images, and other files.

In cases where the one thing you remember about a particular file is a generic keyword, you can use Slack’s filtering tools to dig deeper into the archives and pinpoint whatever it is you need. Search results can be filtered by date range, relevancy, and person, along with many other factors.

Collaboration Feature Comparison

Most popular features of all Collaboration apps

API (43 other apps)
Application Integration (14 other apps)
Audit Trail (22 other apps)
Automatic Notifications (20 other apps)
Calendar Management (16 other apps)
Chat (54 other apps)
Collaborative Workspace (24 other apps)
Collaborative Workspace (19 other apps)
Conferencing (18 other apps)
Document Storage (24 other apps)
Drag & Drop Interface (17 other apps)
Email Integration (18 other apps)
File Management (22 other apps)
File Transfer (16 other apps)
Instant Messaging (25 other apps)
Knowledge Base (23 other apps)
Role-Based Permissions (15 other apps)
Search Functionality (16 other apps)
Single Sign On (17 other apps)
Task Tracking (23 other apps)

Slack Feature Reviews

25 reviewers had the following to say about Slack's features:

Adrian Drewett

Verified Reviewer

Just amazed. What a brilliant service

17/09/2015

Alongside instant messaging, we've used channels to hold conversations on seperate topics, and private groups for confidential chats.

Pros

Instant messaging Works on any platform Love the channels feature Love the integration with over 100 apps

Cons

None. We love Slack.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: Less than 6 months

Source: GetApp
Helpful?   Yes   No
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Dylan Schmer

Verified Reviewer

Great!

17/12/2015

Slack is super easy to use and we have seen an increase in efficiency throughout the office by utilizing it.

Pros

easy to use and get started quickly maximizes efficiency file transfer / upload is great

Cons

Turning on/off desktop notifications can be tricky

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
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Anonymous
Marketing Program Manager (Wireless company, 51-200 employees)
Verified Reviewer

ONE place for communications!

17/12/2015

It's nice to have one central location to be able to have group chats, threads and individual chat sessions.

Pros

Very easy to use, gorgeous UX/UI design! The automated robot 'slackbot' can be programmed to randomly chime in and it can be hilarious.

Cons

As a mac user the notifications work great, but I've heard from some of our PC users the notifications aren't as visible.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
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Emily Westcott

Verified Reviewer

Cleans up my inbox!

18/08/2016

It's a great alternative to email, which is great for my inbox, Slack makes group and private instant messaging simple, efficient, intuitive, and fun.

Pros

There are many ways of accessing the service: browser, desktop apps, and mobile/tablet apps, which are all quite easy to access.

Cons

I have personally had issues with the desktop app with the app being glitchy and slow (might be my ancient computer). So I just use it by having a tab open on my browser and have had zero issues that way.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: Less than 6 months

Frequency of use: Daily

Likelihood to recommend

10/10
Source: GetApp
Helpful?   Yes   No
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Dale Buck

Verified Reviewer

Best In the World

05/11/2016

Slack gives a centralized place to communicate with my colleagues through instant messages and in chat rooms, which reduces the time spent on e-mails.

Pros

Slack messages tend to be short and casual, much more like the mobile text messages.

Cons

One thing I would really appreciate is that if it worked a little smoother with the desktop app for my MacBook Air.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 6-12 months

Frequency of use: Daily

Likelihood to recommend

10/10
Source: GetApp
Helpful?   Yes   No
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Lakshmi Harikumar

Verified Reviewer

Can't think of a better way to communicate with co-workers

01/04/2016

Slack makes sure that everyone in the team (an outside of your immediate team) is always kept in the loop and everybody is on top of everything. Its sheer joy to connect Slack with all your everyday tools such as HubSpot, Shopify etc and see all that you need to know in a single place.

Pros

The simple, yet intuitive User Interface and how the makers of Slack have built every minutest feature from a user's point of view.

Cons

With a mobile app and web UI that's lovable and people filling it with content all the time, I was always tied to Slack!

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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Robert Haines

Verified Reviewer

Great team collaboration tool

19/11/2015

My team has been using Slack for a while now and it's awesome. We've had to come up with some best practices to keep it focused on work and not just sharing random funnies, but overall it's a nice balance of team building via random conversations and disseminating important information to the team.

Pros

Essentially replaces email for internal collaboration Very extensive through 3rd party integrations Easy to use, great UI/UX Direct Messages to multiple people (if you don't want messages to exist publicly) Works great on Mobile

Cons

If you enable /Giphy, that will get VERY distracting (we had to limit this usage) It's expensive Doesn't allow you to add 3rd partner collaborators very easily (would like to see a "customer portal" type of feature in the future).

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
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Superb Team Collaboration

18/09/2015

In a world full of applications and tools to communicate, one of the biggest hurdle we were facing was communication. Despite a handful of tools available to us, we needed to consolidate and standardize with one simple and very powerful solution. Slack was that solution. With standard channels, custom private channels and peer-to-peer private messaging, Slack became the standard in our environment. It is so powerful and useful, that every single employee engages in daily communications across multiple channels for our communications... including remote team members.

Pros

The application provides search functionality as well and many other functions that have proven itself in our environment.

Cons

We cannot find a con other than the inability to engage in multi-user conversations without having to create a private channel. Unlike some other communication tools where you can invite new users to a temporary conversation in real-time, Slack requires the creation of a private channel ahead of time. Then you can simply delete it. But since this is really the only con I can find at this time, the pros outweigh it by a mile.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
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Fernando Garcia Esparza

Verified Reviewer

Perfect team chat with productivity bots integration

23/11/2016

Slack is awesome because it supports API integration with 3rd part applications.

Pros

The user experience is amazing and extremely simple to get used to. The design is fantastic.

Cons

I think they could add voice chat, video calls or screen sharing to increment the productivity even more.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 1-2 years

Frequency of use: Daily

Likelihood to recommend

10/10

Recommendations to others considering Slack

Slack greatly improved communication among teams in our company. It's much easier to send a message over Slack than to write an email or get up and walk across the room. Sharing files is just as easy and it's nice to have everything centralized in one place.

Source: GetApp
Helpful?   Yes   No
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Anonymous
Marketing Manager (Computer Software company, 11-50 employees)
Verified Reviewer

Great team collaboration tool

17/12/2015

I really like simple design, channels, drag and drop feature, so I can easily send images, files to my colleagues.

Pros

-simple -many integrations -mobile apps

Cons

price per user is high, $15/user billed monthly in Plus plan

Rating breakdown

Value for money
Ease of use
Customer support

Time used: Less than 6 months

Source: GetApp
Helpful?   Yes   No
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Aaron Pastor

Verified Reviewer

Pretty Great...but too pervasive?

30/05/2016

Everything in one place is nice, and a feature I gravitate toward, however I don't know that we've figured out a way to make all of this communication actionable without increasing our management of our slack.

Pros

Ability to define channels, share files and chat via desktop or mobile.

Cons

This is probably counter-slacktuitive, but I would prefer more robust email notification options for user-defined events.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 1-2 years

Source: GetApp
Helpful?   Yes   No
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Harry Peirce

Verified Reviewer

Use It. Fullstop.

28/09/2016

We use Slack as our team IM. I think it's great, the team function the ability to copy and paste screenshots is another great one for our development team. My only gripe is if you've read a message on your computer it comes through on your phone a couple of minutes later, and if I've read the message already it alerts me.

Pros

Really Easy to Use Great UX &UI Design Practical The Copy image function is great super fast.

Cons

There aren't really many con's just a note for the developers.

Rating breakdown

Value for money
Ease of use
Features

Time used: 6-12 months

Frequency of use: Daily

Likelihood to recommend

9/10

Recommendations to others considering Slack

Use Slack, it's probably what you've been looking for.

Source: GetApp
Helpful?   Yes   No
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Tejaswi Raghurama

Verified Reviewer

2 years with Slack. Love only goes stronger. Makes us more productive with every conversation

29/03/2016

Slack was super easy to adopt and we soon found ourselves using it daily.

Pros

- The 'reactions' feature is awesome.

Cons

Some conversations run longer than needed because people type together :) - Email integration is good for reading and browsing through mails.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 1-2 years

Source: GetApp
Helpful?   Yes   No
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Matthew Ferris

Verified Reviewer

Slack is the best

17/09/2015

It's not too often I give a glowing review of a platform and have nothing bad to say about it, but I honestly couldn't be more happy with Slack. I had never used anything besides email prior to joining my current company, and it saves us so much time with emails, texts and calls. We share screenshots, images, memes, funny videos and interesting articles all through our different channels. If we didn't have Slack, our productivity would be seriously hurt.

Pros

Ease of use is the biggest thing for me. I was up and running on Slack within an hour of starting my job. We use it for every form of communication and it saves us a ton of time. Dragging and dropping all kinds of media saves us so much time and helps us share what we're working on.

Cons

However, I recently attended a conference where the Slack CMO says this feature is coming soon.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
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Yann Gaslain

Verified Reviewer

SLACK ! a Great app for Procare Health team!

30/05/2016

Slack app is our top 1 tool to maximize sharing and collaboration. Since our commercial launch in France, we have been using Slack. As a general Manager I have the feeling to be in direct contact with my reps and their clients. We can at once, answer all the concerns, questions they have and send on line training content to fix knowledge issues!!!! we all like it a lot and can testify of a 100% business utility!

Pros

- instant sharing with team - create different kind of chanels to allow topics and organizations separations - be in touch - it is like a whats app pro!

Cons

- miss the instant vocal message like in watsapp!

Time used: Less than 6 months

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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Krzysztof Urbanski

Verified Reviewer

Good-old IRC in brand new better shape

02/05/2016

In the pre-web2.0 era this was the best way to connect with people, to be able to chat with some really great guys.

Pros

easy integration with a lot of external tools easy to setup new channels and invite new people good desktop, mobile and web clients

Cons

strange pricing plan easy to loose control over channel after inviting too many random people

Rating breakdown

Value for money
Ease of use

Time used: 1-2 years

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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Mandi Wong

Verified Reviewer

Great free chat app for communicating with coworkers, schoolmates, etc.

25/02/2016

It's pretty easy to make your own chatroom, invite who you would like, make the chat private, do a private message, etc.

Pros

-Easy to start your own chat room -Private rooms means private.

Cons

-I wish I could send more files via chat but I understand that they need to make money somehow.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: Less than 6 months

Source: GetApp
Helpful?   Yes   No
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Jacob Klumker

Verified Reviewer

Awesome office communication tool!

25/05/2016

Slack is exactly what you would want in a instant messaging service for the workplace.

Pros

Easy to use free app.

Cons

I honestly can't think of any negatives.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: Less than 6 months

Source: GetApp
Helpful?   Yes   No
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Frédéric CANEVET

Verified Reviewer

Very nice project management, but it is "just a chat"

26/08/2016

I like the chat, the docs, the alerts...

Pros

It is a good chat software :D

Cons

No video chat (screensharing or video conferencing) Not a good document management software Quickly lots of news, but difficult to see where are the news Lack of priority No real project management

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 1-2 years

Frequency of use: Weekly

Likelihood to recommend

9/10

Recommendations to others considering Slack

Try it, it is very simple, and helps to share infos quicker !

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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Daniel Nice

Verified Reviewer

Simple communication

28/10/2015

We love slack, it makes it easy to communicate with our entire design team. The channel approach works great to categorize conversations and make it much easy to find relevant information later on.

Pros

Great integration with other apps Keeps me out of Outlook which is always a good thing ;-) Better then simple chat tools because of the integrations and custom channels

Cons

You really need the paid version if you are going to use the tool a lot as the best part of slack is the ability to search for past conversations and posts

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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John Freinen

Verified Reviewer

Over-hyped chat tool

29/11/2015

The UI is horrible for a chat app.

Pros

Has a lot of integrations and mention notifications are in theory nice.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 1-2 years

Source: GetApp
Helpful?   Yes   No
Read more
Rachel Said

Verified Reviewer

Conversations between staff made easy

22/07/2016

It's also more fun to use than other social networking sites mainly because I can send any documents or photos through chats, easily access old chats and have a clear log of everything.

Pros

- Easy to use - Great design - Well-liked and used across all areas in the company - Sending documents, photos, or just talking to someone is made so easy - we no longer have to worry about lost emails or those dreaded long email threads

Cons

- When the desktop app is open and the window is minimised, some notifications don't show up.

Rating breakdown

Value for money
Ease of use
Features

Time used: Less than 6 months

Frequency of use: Daily

Likelihood to recommend

10/10
Source: GetApp
Helpful?   Yes   No
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Bartek Ciszewski

Verified Reviewer

Great team collaboration tool

09/11/2015

I use Slack to work in all the projects. Before I used HipChat, which a very similar tool. It's great for remotely discussing the tasks, sharing documents and files, managing topics.

Pros

great search, usability, beautiful design, useful features, clean not overloaded interface

Cons

lacks full email alerts customization

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
Read more
Sarah Dixon

Verified Reviewer

Fab app

20/05/2016

Its also fun to use and easy to set up.

Pros

Really easy, light, well designed, handles complex situations really well.

Cons

Maybe puts a few people off by appearing to be quite techy.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 6-12 months

Source: GetApp
Helpful?   Yes   No
Read more
Cesar Zeppini

Verified Reviewer

Do they really need a review?

23/10/2015

The integrations are fantastic, the mobile app is great, and the usability is just perfect.

Pros

Great and numerous integrations, perfect mobile app, multiple logins, friendly interface.

Cons

I'm trying really hard to find cons... blank.

Rating breakdown

Value for money
Ease of use
Customer support

Time used: 1-2 years

Source: GetApp
1 of 1 people found this review helpful
Helpful?   Yes   No
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