Microsoft Teams vs Slack

Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Microsoft Teams
Microsoft Teams

334
208
+ 1
39
Slack
Slack

28.3K
20.5K
+ 1
5.9K
Add tool

Microsoft Teams vs Slack: What are the differences?

Developers describe Microsoft Teams as "Chat-based workspace in Office 365". See content and chat history anytime, including team chats with Skype that are visible to the whole team. Private group chats are available for smaller group conversations. On the other hand, Slack is detailed as "Bring all your communication together in one place". Imagine all your team communication in one place, instantly searchable, available wherever you go. That’s Slack. All your messages. All your files. And everything from Twitter, Dropbox, Google Docs, Asana, Trello, GitHub and dozens of other services. All together.

Microsoft Teams and Slack can be primarily classified as "Group Chat & Notifications" tools.

Some of the features offered by Microsoft Teams are:

  • All your content, tools, people, and conversations are available in the team workspace
  • Enjoy built-in access to SharePoint, OneNote, and Skype for Business
  • Work on documents right in the app

On the other hand, Slack provides the following key features:

  • Create open channels for the projects, groups and topics that the whole team shares.
  • Search with context
  • Autocomplete makes mentioning your teammates quick and painless.

"Free" is the top reason why over 4 developers like Microsoft Teams, while over 1198 developers mention "Easy to integrate with" as the leading cause for choosing Slack.

Dropbox, Pinterest, and Instacart are some of the popular companies that use Slack, whereas Microsoft Teams is used by Macy's, Heimdal Security, and Sainsburys. Slack has a broader approval, being mentioned in 4744 company stacks & 3361 developers stacks; compared to Microsoft Teams, which is listed in 45 company stacks and 31 developer stacks.

- No public GitHub repository available -
- No public GitHub repository available -

What is Microsoft Teams?

See content and chat history anytime, including team chats with Skype that are visible to the whole team. Private group chats are available for smaller group conversations.

What is Slack?

Imagine all your team communication in one place, instantly searchable, available wherever you go. That’s Slack. All your messages. All your files. And everything from Twitter, Dropbox, Google Docs, Asana, Trello, GitHub and dozens of other services. All together.
Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Why do developers choose Microsoft Teams?
Why do developers choose Slack?

Sign up to add, upvote and see more prosMake informed product decisions

Sign up to add, upvote and see more consMake informed product decisions

Jobs that mention Microsoft Teams and Slack as a desired skillset
What companies use Microsoft Teams?
What companies use Slack?

Sign up to get full access to all the companiesMake informed product decisions

What tools integrate with Microsoft Teams?
What tools integrate with Slack?

Sign up to get full access to all the tool integrationsMake informed product decisions

What are some alternatives to Microsoft Teams and Slack?
Skype
Skype’s text, voice and video make it simple to share experiences with the people that matter to you, wherever they are.
SharePoint
It empowers teamwork with dynamic and productive team sites for every project team, department, and division. Share and manage content, knowledge, and applications to empower teamwork, quickly find information, and seamlessly collaborate across the organization.
Yammer
Yammer brings the power of social networking to your company. Collaborate securely across departments, geographies, content and business applications.
Confluence
Capture the knowledge that's too often lost in email inboxes and shared network drives in Confluence instead – where it's easy to find, use, and update.
Zoom
Zoom unifies cloud video conferencing, simple online meetings, and cross platform group chat into one easy-to-use platform. Our solution offers the best video, audio, and screen-sharing experience across Zoom Rooms, Windows, Mac, iOS, Android, and H.323/SIP room systems.
See all alternatives
Decisions about Microsoft Teams and Slack
Vishnu KS
Vishnu KS
Software Engineer at Zulip · | 5 upvotes · 19.2K views
atZulipZulip
Zulip
Zulip
Slack
Slack

Zulip has easily the best threading model among all the chat applications and I prefer it over Slack, Mattermost, RocketChat, Hipchat, Discord etc. Each and every conversation is a seperate thread and has a topic. This model makes it extremely easier to catch up and participate in conversations. Once you get used to the threading model of Zulip its hard to tolerate threading model like Slack which is really inefficient and time wasting.

See more
rishig
rishig
Head of Product at Zulip · | 4 upvotes · 29.1K views
atZulipZulip
Slack
Slack
Mattermost
Mattermost
RocketChat
RocketChat

I use Zulip instead of Slack, Mattermost, or RocketChat because of its first class threading. One week after switching to Gmail (in 2004) I realized I was never (willingly) going to use an unthreaded email product again. I had that same experience the first time I saw Zulip.

Zulip is also fully open-source, with a well-maintained (e.g. 90+% test coverage, fully static python), easily extensible code-base. In many companies, your communication platform (chat or email) is the center of the workplace -- no one asks for a chat integration into their calendar, they ask for a calendar integration into their chat. A fully open-source codebase means you can customize Zulip to your needs, and are never at the whim of a corporate maintainer who can't or won't fix simple bugs, or who will charge you tens of thousands of dollars for making minor customizations.

See more
Zulip
Zulip
Slack
Slack

I use Zulip because I love how it lets me focus on my work, and doesn't need me to be constantly online to be able to participate in conversations that matter to me. Zulip's topics make it super easy to get an overview of all the conversations that happened while I was away, and pick and choose the conversations that I want to catch-up with. Slack 's threads seem like an after-thought and aren't effective for catching-up at all!

I also love the Zulip community, and the care and effort put in by the members to make it a friendly and welcoming community to new developers, and to make the contribution experience pleasant for all the contributors.

See more
Francisco Quintero
Francisco Quintero
Tech Lead at Dev As Pros · | 7 upvotes · 80.8K views
atDev As ProsDev As Pros
Node.js
Node.js
Rails
Rails
Amazon EC2
Amazon EC2
Heroku
Heroku
RuboCop
RuboCop
JavaScript
JavaScript
ESLint
ESLint
Slack
Slack
Twist
Twist

For many(if not all) small and medium size business time and cost matter a lot.

That's why languages, frameworks, tools, and services that are easy to use and provide 0 to productive in less time, it's best.

Maybe Node.js frameworks might provide better features compared to Rails but in terms of MVPs, for us Rails is the leading alternative.

Amazon EC2 might be cheaper and more customizable than Heroku but in the initial terms of a project, you need to complete configurationos and deploy early.

Advanced configurations can be done down the road, when the project is running and making money, not before.

But moving fast isn't the only thing we care about. We also take the job to leave a good codebase from the beginning and because of that we try to follow, as much as we can, style guides in Ruby with RuboCop and in JavaScript with ESLint and StandardJS.

Finally, comunication and keeping a good history of conversations, decisions, and discussions is important so we use a mix of Slack and Twist

See more
Jack Graves
Jack Graves
Head of Product Development at Automation Consultants · | 2 upvotes · 28.6K views
atAutomation ConsultantsAutomation Consultants
HipChat
HipChat
Microsoft Teams
Microsoft Teams
Jira
Jira
Confluence
Confluence

We use Microsoft Teams as our primary workplace collaboration tool. It enables our team to work remotely and still collaborate on projects - with integration to JIRA and Confluence, the tool enables us to create War Rooms when problems occur and also provides information-sharing capabilities. Replaced HipChat.

See more
Aghmat Abrahams
Aghmat Abrahams
Junior Data Engineer at Impact Radius · | 5 upvotes · 21.1K views
Mattermost
Mattermost
Jira
Jira
GitHub
GitHub
OpsGenie
OpsGenie
Slack
Slack

Slack is the industry standard for managed instant messaging (IM). A good alternative would be to self (or cloud) host an open source IM such as Mattermost but as always it would be a good idea to do a cost benefit analysis between the solutions.

Some of the main things to consider:

  • Having a good SDK for plugin creation
  • Having good integrations with existing tools ( JIRA , GitHub , OpsGenie , etc.)
  • Cost
  • Maintenance and administration
  • Covers all your businesses use cases
See more
Mark Nelissen
Mark Nelissen
CTO at Gemsotec bvba · | 5 upvotes · 35.1K views
Slack
Slack
HipChat
HipChat
Stride
Stride
Skype
Skype
Mattermost
Mattermost

I use Slack because it offers the best experience, even on the free tier (which we're still using). As a comparison, I have had in depth experience with HipChat, Stride, Skype, Google Chat (the new service), Google Hangouts (the old service). For self hosted, Mattermost is open source and claims to support most Slack integrations, but I have not extensively investigated this claim.

See more
Gitter
Gitter
Discord
Discord
Spectrum
Spectrum
Slack
Slack

From a StackShare Community member: “We’re about to start a chat group for our open source project (over 5K stars on GitHub) so we can let our community collaborate more closely. The obvious choice would be Slack (k8s and a ton of major projects use it), but we’ve seen Gitter (webpack uses it) for a lot of open source projects, Discord (Vue.js moved to them), and as of late I’m seeing Spectrum more and more often. Does anyone have experience with these or other alternatives? Is it even worth assessing all these options, or should we just go with Slack? Some things that are important to us: free, all the regular integrations (GitHub, Heroku, etc), mobile & desktop apps, and open source is of course a plus."

See more
Interest over time
Reviews of Microsoft Teams and Slack
Review ofSlackSlack

Today the impossible happened, our beloved Slack crashed sending chaos into offices around the globe. “Wow, how am I now going to vote for the flavour of our new office candy???”, I thought. But even though it might not have felt like it, everything else around us was still working: the world was still spinning, South Korea was winning over Germany at the World Cup, and today’s quotas and goals had to be met. In these situations, people most often turn towards traditional messaging tools like messenger, WhatsApp or email and hope for the best — that Slack will be back up soon. However, these temporary remedies are not without their complications: undelivered messages that you thought were read, lost documents, mental breakdowns, wasted time, etc.… In general, for us it creates a problematic gap in our office chat history.

But what if I told you that these crashes could potentially never occur again?

Yes, this is real life, and it’s exactly what mesh technology is about so we are going to explain it. In this scenario, if Slack ran with mesh networks, its users would not have been affected by its current technology’s single point of failure, which in this case was the crash of the server.

Lol okay, how is this possible bc this is real life???

Mesh networks might not sound familiar to everyone so let’s compare it with other well-known networking topologies. Consider a Local Area Network (LAN), where devices are connected to a central access point (imagine it like a star with the central access point in the middle and the devices located at the ends). Be it LAN or wifi, the idea is the same, so when I send a message on Slack, it first arrives at the Slack server (the central access point) and from there it is sent to the recipient.

In mesh networks, devices are directly connected to each other. They form a local network using existing connectivity technologies such as Bluetooth or Wi-Fi as “connectors”. Devices can act as “routers” and forward messages and files to others, enabling the content to hop between them until it reaches a destination. This eliminates the need for a central entity.

Let’s apply this concept to today’s crisis. If slack ran on top of mesh networks, their consumers would still be able to communicate and send files even though they were not connected to the crashed server. Once it was up and running again, all their group conversations which would have taken place during the outrage would be uploaded back to Slack’s server once they were back online.

Honestly, it’s that simple. To Slack, it would not only be convenient for its customers in situations like these (because we would never have Slack crashes), it would also considerably reduce their own infrastructure costs and prevent them from having moments that they might find embarrassing.

So slack, if you see that mesh networks could potentially help you, come talk to us.

HypeLabs https://hypelabs.io

Avatar of sergiotapia
Senior Software Engineer
Review ofSlackSlack

Slack is gorgeous and runs on multiple platforms - that's benefit #1. You can easily talk on your iMac then switch to your Android device on the fly.

The one thing I don't really like about it is how it handles multiple organization accounts.

I am a software consultant so I typically work with multiple teams over the months and it's odd to 'log into the right account'. It's not intuitive at all.

I would like there to be a way for users to easily pick a 'Persona' and not accidentally post to the wrong company.

Review ofSlackSlack

Slack filled a very complicated role and did it elegantly.

Its very well designed and easy to use. Adding integrations can be complicated but their documentation with images makes it very easy.

Also I contacted support and get a relevant answer quickly!

All this on the free plan, you better bet we will be upgrading soon.

Avatar of vamseev
Product Manager at StackShare
Review ofSlackSlack

Internal Communications made easy

How developers use Microsoft Teams and Slack
Avatar of StackShare
StackShare uses SlackSlack

I first heard about Slack from my friend Matt (shout out to Final!). He was helping me out with some Rails issues so we started using Slack and I liked it. Specifically, the chat interaction. But also all the integrations. I wasn’t thinking of it as a tool to end all tools at first, just a chat tool with some cool integrations. Then I created a Slack account for StackShare, and that’s when things got real.

Sentry got easier to stay on top of, Heroku was easier to see activity from, discussions were more fluid, and the mobile app was killer. Most of the tools I use either don’t have a mobile app or have shitty ones. Slack is like a replacement for all the mobile apps my tools should have.

I don’t find Slack particularly useful for focused discussions, so I doubt it will replace email anytime soon for us. Things like product discussions/debates are best via email. It forces you to think before you type and have a clear back and forth with someone.

Small gripe: I wish Slack would disable email notifications by default, I still haven’t figured out how to turn those off.

Avatar of shridhardalavi
shridhardalavi uses SlackSlack

Slack is an instant messaging and collaboration system It unifies your entire team communications, making your workflow, well, flow a lot better. It is a cloud-based set of proprietary team collaboration tools and services. Slack teams allow communities, groups, or teams to join through a specific URL or invitation sent by a team admin or owner.

Avatar of SaberEsPoder
SaberEsPoder uses SlackSlack

Slack is our go-to communication tool and it's slowly replacing emails across all departments of the company. We built our own Slack Bot to help us with simple DevOps stuff; Honeybadger notifies us in real time of errors happening on production in our monitoring channel; CircleCI reports builds status and deployment info as well.

Avatar of Andrew Gatenby
Andrew Gatenby uses SlackSlack

Team comms is essential. The R&D team is distributed over two offices, as well as the chance that people are working from home. Slack provides lots of options of keeping individuals and groups up to date. We also use it to integrate into services such as Github and Sentry.

Avatar of Refractal
Refractal uses SlackSlack

Slack is a lifesaver, not only for our day to day team communications and it's direct links into our other tools, but for Beta testing as well, with our custom Slack bot in our beta group being an invaluable asset to avoid giving our testers direct JIRA access.

How much does Microsoft Teams cost?
How much does Slack cost?
Pricing unavailable