Productivity

Slack vs Microsoft Teams

Slack vs Microsoft Teams compared in 2026: pricing, AI, integrations, meetings, channels and Microsoft 365 compatibility. Which team chat tool is better for your workplace?

Last updated: May 18, 2026

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Slack

A workplace messaging platform built around channels, fast conversations, app integrations and lightweight team collaboration.

Microsoft

Microsoft Teams

A Microsoft 365-connected collaboration platform for chat, meetings, channels, files and enterprise teamwork.

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Specifications

FeatureSlackMicrosoft Teams

Main purposeFast workplace messaging, channels, integrations and async collaborationChat, meetings, channels, files and Microsoft 365-connected teamwork

Best forStartups, product teams, engineering teams, agencies and companies using many different appsOrganisations already using Microsoft 365, Outlook, OneDrive, SharePoint and Office apps

Free planYes. Slack Free includes 90 days of searchable messages and limited app integrations at the time of writing. Limits may change later.Yes. Microsoft Teams Free is available, but business use often depends on Teams Essentials or Microsoft 365 plans. Limits may change later.

Starting paid pricePro ~$7.25–8.75/user/mo (annual/monthly)Essentials $4/user/mo (or included in M365)

Higher business planBusiness+ is listed at USD 18/user/month when paying monthly at the time of writing.Microsoft 365 Business Basic, Business Standard and Business Premium plans can include Teams depending on region and licensing.

Core strengthFast chat, channels and third-party app integrationsMeetings, files, Microsoft 365 apps and enterprise structure

Chat experienceUsually feels faster and lighter for everyday team messagingStrong, but can feel more formal and tied to the Microsoft 365 workspace

ChannelsVery strong for topic, project and team-based communicationStrong for departments, teams and structured workplace collaboration

MeetingsHuddles are good for quick audio/video conversations and informal collaborationStronger for scheduled meetings, calendar workflows, recordings and meeting-heavy organisations

File collaborationFile sharing is useful, especially with app integrationsStronger when files live in OneDrive, SharePoint, Word, Excel and PowerPoint

App integrationsLarge integration ecosystem and strong app cultureStrong Microsoft 365 integration plus Teams apps and meeting apps

AI featuresSlack AI includes features such as conversation summaries, AI search, daily recaps and workflow generation depending on planTeams includes AI-enhanced messaging, meetings and task flow, with deeper Copilot features depending on Microsoft licensing

Workflow automationSlack Workflow Builder is useful for lightweight internal processesTeams can connect with Microsoft Power Automate and Microsoft 365 workflows

External collaborationSlack Connect is strong for working with clients, partners and outside organisationsTeams supports external collaboration, especially in Microsoft-managed environments

Admin and securityBusiness+ and Enterprise Grid add stronger admin, compliance and enterprise controlsStrong fit for organisations already using Microsoft identity, security and compliance tools

Learning curveEasier for teams that want fast chat and simple channelsEasier for Microsoft 365 workplaces, but heavier for chat-only use

Best practical use caseFast-moving teams that need open communication and many tool integrationsOrganisations that run through Microsoft 365, meetings, documents and IT-managed collaboration

Overall feelQuick, flexible and chat-firstStructured, meeting-ready and Microsoft 365-centred

Pros & Cons

Slack — Pros

✓Slack feels quick. For teams that live in short updates, project channels, quick decisions and async discussions, it usually feels more natural than a formal meeting-heavy tool.

✓Channels are one of Slack’s biggest strengths. A team can create spaces for projects, clients, incidents, announcements or small working groups without making the whole workspace feel too heavy.

✓Slack works especially well when a company uses many different tools. Its app and integration culture is a major reason teams choose it.

✓Huddles are useful when a written conversation suddenly needs a quick voice or video discussion. They feel less formal than scheduling a meeting.

✓Slack is strong for startups, product teams, engineering teams and smaller companies that want communication to feel open, fast and searchable.

Slack — Cons

✕Slack can become noisy if teams create too many channels or treat every small thought as a message.

✕The Free plan is useful for testing, but the 90-day searchable message history limit can become a problem once Slack becomes part of real company memory.

✕It is not as naturally tied to documents, calendars and enterprise office workflows as Microsoft Teams is inside Microsoft 365.

✕Meetings are possible through Huddles, but Teams still feels stronger when formal video meetings and calendar-based collaboration are central.

✕Larger organisations may need Business+, Enterprise Grid or deeper admin controls, which makes pricing more serious.

Microsoft Teams — Pros

✓Teams makes the most sense when a workplace already uses Microsoft 365. Outlook, Word, Excel, PowerPoint, OneDrive and SharePoint all sit close to the Teams experience.

✓It is stronger for formal meetings. If your workday is built around calendar invites, video calls, shared files and meeting follow-up, Teams feels more complete.

✓Channels and teams help organise conversations around departments, projects or groups, and files shared in channels are stored through SharePoint.

✓Teams is often easier for IT departments to justify because it fits into Microsoft identity, admin, compliance and security structures.

✓For organisations already paying for Microsoft 365, Teams may feel less like a separate purchase and more like part of the existing workplace system.

Microsoft Teams — Cons

✕Teams can feel heavier than Slack if all you want is fast team chat.

✕The interface can feel crowded because it is trying to handle chat, meetings, files, apps, calendars and calls in the same place.

✕Teams works best when the company is already committed to Microsoft 365. Outside that ecosystem, some of its biggest advantages become less important.

✕Channels are useful, but they can feel more formal than Slack channels for fast-moving team conversations.

✕Some advanced meeting, AI, security or enterprise features may depend on Microsoft 365 plan choices, Teams Premium, Copilot or admin configuration.

⚖️

Our Verdict

Slack and Microsoft Teams both handle chat, channels and calls well, but they serve different workplace styles.Slack usually feels better for teams that want fast, open communication and love connecting many different tools. It’s especially popular with startups, product teams and companies that prefer a chat-first culture.Microsoft Teams tends to be the more practical choice for organisations already invested in Microsoft 365. It brings chat, meetings, files and Office apps together in one familiar environment.Bottom line: There is no universal winner. Choose Slack if speed, flexibility and integrations matter most. Choose Microsoft Teams if you live in Microsoft 365 and need structured meetings and enterprise controls. Many companies even use both for different purposes.

Which One Should You Choose?

Choose Slack if...

→Your team wants fast chat and flexible channels more than a full office suite.

→You use many different SaaS tools and want them connected inside your workspace.

→Quick async updates, project channels and informal huddles are part of your working style.

→You work with external partners or clients and want a strong cross-company collaboration setup.

→You want communication to feel lighter and less tied to formal meetings.

Choose Microsoft Teams if...

→Your workplace already runs on Microsoft 365, Outlook, OneDrive and SharePoint.

→Scheduled meetings, video calls and shared documents are central to your day.

→IT, security, compliance and admin control matter heavily to the organisation.

→You want chat, meetings, files and Office apps to sit inside one Microsoft environment.

→You prefer a more structured collaboration platform over a chat-first workspace.

Frequently Asked Questions

Q: Which is cheaper, Slack or Microsoft Teams?

A: Microsoft Teams can look cheaper at the entry level, especially if a business already pays for Microsoft 365. Slack is a separate collaboration platform, so the cost is easier to notice when every user needs a paid seat. The real comparison depends on whether Teams is already included in your Microsoft setup, how many users you have and whether Slack’s workflow and integration benefits are worth paying for separately.

Q: Which is better for meetings?

A: Microsoft Teams is usually stronger for formal meetings. It fits naturally with Outlook calendars, scheduled calls, meeting chats, files and Microsoft 365 workflows. Slack Huddles are better for quick conversations that start from a channel or direct message, but Teams feels more complete when meetings are a major part of the workday.

Q: Which is better for small teams?

A: Slack often feels better for small teams that want to move quickly and avoid a heavy workplace system. It is easy to create channels, connect tools and keep conversations moving. Teams can still work well for small teams, especially if they already use Microsoft 365, but it may feel like more platform than they need if chat is the main requirement.

Q: Which is better for large organisations?

A: Microsoft Teams often fits large organisations well because it sits inside Microsoft’s identity, security, compliance and admin environment. Slack can also support large companies through Business+ and Enterprise Grid, especially when open communication and cross-functional channels are important. The better choice depends on whether the organisation values Microsoft 365 control or Slack’s communication style more.

Q: Which has better integrations?

A: Slack has a strong reputation for third-party app integrations and tends to feel more natural when a team works across many tools. Microsoft Teams is strongest when the most important tools are already Microsoft products such as Outlook, SharePoint, OneDrive, Word, Excel and PowerPoint. In practice, Slack is stronger for mixed-tool teams, while Teams is stronger for Microsoft-centred workplaces.

Q: Can a company use both Slack and Microsoft Teams?

A: Yes, some companies use both, but it can create confusion if the roles are not clear. A common setup is Slack for fast team chat and external collaboration, with Teams used for Microsoft 365 meetings and formal company workflows. If both tools are used for the same conversations, people may start missing messages or duplicating work.

Q: Is Slack or Microsoft Teams better for startups?

A: Slack is usually the preferred choice for startups and small teams because it feels lighter, faster and has excellent third-party integrations. Teams can work but often feels like more platform than needed if you’re not already using Microsoft tools.

Sources & References

Prices, features and specifications in this comparison were verified from official sources.

Last verified: May 2026

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