Slack Features List

Slack Reviews

Slack

A single place for your team communication and workflows

4.6/5 (1,899 reviews)
47,512     295,698

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
  • 1:1 and group calls
  • Integration with tools and apps

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)
Access Control (52 other apps)
Audit Trail (25 other apps)
Automatic Notifications (23 other apps)
Chat (56 other apps)
Collaborative Workspace (27 other apps)
Collaborative Workspace (24 other apps)
Conferencing (19 other apps)
Content Management (24 other apps)
Document Storage (26 other apps)
Email Integration (20 other apps)
Email Notifications (23 other apps)
File Management (20 other apps)
Instant Messaging (24 other apps)
Knowledge Base (23 other apps)
Single Sign On (19 other apps)
Tagging (27 other apps)
Task Tracking (22 other apps)
Version Control (24 other apps)
Wiki (22 other apps)

Slack Feature Reviews

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

Miklos Szel

a chat app for OPS

09/12/2016

I find ChatOPS a little disturbing since people often forget about using tickets/emails as it's too convenient to throw everything to a chat room. Slack makes it less painful through an actually working search and its excellent syntax formatting.

Pros

- intuitive UI - syntax highlighting - easy to share snippets - search

Cons

- mobile interface could be still improved

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 1-2 years

Frequency of use: Daily

Likelihood to recommend

9/10
Source: Capterra
Helpful?   Yes   No
Read more
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
Read more
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
Read more
D D

The best tool for team

05/10/2016

Slack has completely revitalized my workflow. It's a great way for both small and large groups to communicate and has integrations with every major web based tool. I am on 8 teams so far, and can't wait to join more.

Pros

Easy to set up. Free for non profits.

Cons

Does not have single sign on, which is frustrating if you are on multiple teams.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Likelihood to recommend

10/10

Recommendations to others considering Slack

Try it out for free!

Source: Capterra
Helpful?   Yes   No
Read more
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
Read more
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
Read more
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
Read more
Andi Graham

Life changing.

09/11/2016

We love Slack and use the free version - it's really all we need. We use a lot of the integrations and it keeps our team on the same page even when they're working from elsewhere. Great value for the money!

Pros

Fast, easy, mobile app is great.

Cons

Difference between free and pro is very heavy price tag.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 2+ years

Frequency of use: Daily

Likelihood to recommend

10/10
Source: Capterra
Helpful?   Yes   No
Read more
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
Read more
Kate Johnson

Great tool for communication

01/12/2016

The connection is rather good and I like that it automatically mutes the other lines when someone is speaking - - - a common issue on most conference calls!

Pros

ease of use conference calling feature searchability

Cons

The app sometimes can be flakey.

Rating breakdown

Value for money
Ease of use
Features

Time used: 6-12 months

Frequency of use: Weekly

Likelihood to recommend

10/10

Recommendations to others considering Slack

Fantastic communication tool for any size team!

Source: Capterra
Helpful?   Yes   No
Read more
Ben Terpstra

Team chat room for small team

05/12/2016

We weren't getting what we needed from our basic instant message platforms.

Pros

Very easy to use and set up.

Cons

Wish the notifications on the desktop were more in your face.

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: Capterra
Helpful?   Yes   No
Read more
Craig Kazda

Great way to bring your team together

09/11/2016

When our team started using Slack, we had previously tried other communication tools, such as HipChat and Messenger. What we love about this service is that it has a free option for smaller teams such as our, while providing a robust set of tools to help teams communicate, share assets, and stay on top of projects.

Pros

Simple and organized chats, channels to specific categories of conversations, and the ability to quickly add and share files with team members

Cons

While a unique tool, this is mostly a instant message service with a few added features, but this helps move conversations for teams outside of email and into a single place

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: Capterra
Helpful?   Yes   No
Read more
Casey Anderson

Slack: Just a fancy messenger

07/11/2016

The /giphy feature is a great add-on that Facebook has now added to their own chat feature. Overall, it's useful if you haven't used anything before but could be helpful if you don't have a chat/file system yet.

Pros

- Great design ! Love pressing enter to submit

Cons

- Not super innovative, but an old idea done super well.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 1-2 years

Frequency of use: Daily

Likelihood to recommend

8/10
Source: Capterra
Helpful?   Yes   No
Read more
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. Great mobile app. I recommend this great team collaboration tool.

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
Read more
Steve  R

The best communication tool for startups

09/11/2016

My startup has been using Slack for the last 2 years. Very easy to learn and use.

Pros

UX/UI,, ea

Cons

Mobile app can have a delay for messages

Rating breakdown

Value for money
Ease of use
Features
Customer support

Likelihood to recommend

10/10
Source: Capterra
Helpful?   Yes   No
Read more
Benjamin Gelb

Slack review for inbound

09/11/2016

Slack is easy to use and has lots of plugins.

Pros

It has lots of shortcuts and easy to tag other employees

Cons

Mobile version is a bit buggy.

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: Capterra
Helpful?   Yes   No
Read more
Chris Gorges

Slack needs an

14/03/2017

Slack is great / fun when everyone is online constantly / engaging constantly, but it's *horrible* if someone steps out of the office and misses an entire important thread.

Pros

UX / UI design

Cons

I miss messages ALL THE TIME on Slack.

Rating breakdown

Ease of use
Features

Time used: 1-2 years

Frequency of use: Daily

Likelihood to recommend

5/10
Source: Software Advice
Helpful?   Yes   No
Read more
Maihemutijiang Maimaiti

an awesome team communication tool!

09/12/2016

It gradually becomes a knowledge base/workspace that is always up to date, as long as you keep communicating/chatting with your team.

Rating breakdown

Value for money
Ease of use
Features

Likelihood to recommend

9/10
Source: Capterra
Helpful?   Yes   No
Read more
Danny Skinner

Slack makes business communication so much easier

05/10/2016

Email is so outdated, and the UI on Slack makes chatting to colleagues an enjoyable experience.

Rating breakdown

Value for money
Ease of use
Features
Customer support
Source: Capterra
Helpful?   Yes   No
Read more
Ramses Lopez

The ultimate business chat

06/01/2017

Why use slack, when there are hundreds of business-oriented chat rooms? one word: integrations.

Pros

Ease of integration with tons of tools, clean & beautiful interface, great mobile apps.

Cons

Can be annoying when you have many chatrooms. However, you can silence them off.

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: 1-2 years

Frequency of use: Daily

Likelihood to recommend

9/10

Recommendations to others considering Slack

Please, check their integration options. You'll find that many of your days to day tools are there.

Source: Capterra
Helpful?   Yes   No
Read more
Roxelyn Vasconcelos

Easy to collaborate in any kind of projects

09/11/2016

Using slack made it easier to keep track of everything without losing any information and keeping everything organized

Pros

Nice interface Available on mobile and online

Cons

It has several commands that are not easy to remembber You have to use it and practice to get used to it

Rating breakdown

Value for money
Ease of use
Features
Customer support

Time used: Less than 6 months

Frequency of use: Weekly

Likelihood to recommend

10/10

Recommendations to others considering Slack

Make commands more intuitive

Source: Capterra
Helpful?   Yes   No
Read more
Philip Lakin

Slack makes dreams come true

15/03/2017

Slack is killing it.

Pros

Amazing to work with for my remote team. It what's elimated 80% of our internal emails. The integrations are fantastic.

Cons

Search and file management could be way better.

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: Software Advice
Helpful?   Yes   No
Read more
Marissa Ho

Perfect for teams

12/12/2016

With all the integrations and human UI, it makes using a communication tool fun, which is a bonus.

Pros

The numerous integrations The intuitive UI The easy calling feature

Cons

We use it pretty basically, so it suits are needs perfectly.

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

Recommendations to others considering Slack

Check out the Slack App Directory!

Source: Capterra
Helpful?   Yes   No
Read more
Rychelle Mckenzie

Slack is very efficient

27/10/2016

I use slack with my team and students so a total of about 150+ individuals and I really like the interface, ease of use and being able to segment topics and share files quickly.

Pros

Mobile app and desktop app are seamless

Cons

it doesn't share google folders yet just files

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

Recommendations to others considering Slack

integrate to do tasks/ calendar

Source: Capterra
Helpful?   Yes   No
Read more
Brandion Faucett

How Slack has changed content creation for me

26/01/2017

Slack has been one of the best things I have added to my video production teams. As a content creator and 10 year freelancer, putting my projects and multiple teams inside slack has increase my productivity and streamlined my workflow in countless ways. The intergration of the bots to my life has really held myself and team members accountable. Thank you, thank you for adding this to my life.

Pros

Bot integration and team chat.

Cons

Cant add apps from the mobile. (maybe I dont know how to do it)

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

Recommendations to others considering Slack

More app integrations based on growth hacking and video production please.

Source: Capterra
Helpful?   Yes   No
Read more