Head-to-Head
Slack vs Microsoft Teams (2026)
Slack
Freemium★ 4.5
Best for: centralising team communication across projects and departments, building automated workflows between apps (jira, github, salesforce)
Microsoft Teams
Freemium★ 4.2
Best for: organisation-wide communication for microsoft 365 users, project collaboration with shared office documents
Slack and Microsoft Teams are the two dominant workplace communication platforms. Slack is more beloved by developers and tech-forward companies for its interface, integrations, and developer culture. Teams is deeply embedded in Microsoft 365 and often the default choice for enterprises already using Office. The decision is usually driven by which productivity suite an organisation already pays for.
Feature Comparison
User Experience
Slack is widely considered the better-designed product. Teams is functional but feels heavier and more complex.
Microsoft 365 Integration
Teams is native to Word, Excel, SharePoint, and OneDrive. Slack's Office integrations are third-party.
Developer Integrations
Slack has a richer app directory with thousands of integrations. Teams has improved but lags in breadth.
Video Calls
Teams has a more mature video calling experience built in. Slack Huddles are lightweight but less featured.
Search & History
Both offer message search. Slack's search is faster and more intuitive; Teams indexes SharePoint content too.
AI Features
Slack AI and Microsoft Copilot in Teams both summarise threads and answer questions. Roughly equivalent in 2026.
Pricing
Teams is included in most Microsoft 365 plans. Slack Pro at $7.25/user/mo is an additional cost for similar features.
Verdict
This comparison is context-dependent. Slack scores 26/35 and Microsoft Teams scores 28/35. Choose based on your specific workflow needs.