Illustration of slices of apps including Microsoft Teams and other Microsoft 365 apps that offer developers opportunity to build collaborative apps.

Reshape the future of collaboration with AI-powered apps

Shaping the future of work with AI

Integrating your app with Microsoft 365 Copilot can transform how your users create and collaborate.

Build your app

Integrate your collaborative app into the platform

Build rich collaborative experiences with Microsoft Teams

Grow customer reach and engagement with apps built for Microsoft Viva

Build powerful apps with Outlook and Office

Create engaging experiences for your users

Build low-code apps and workflows with Power Platform

Design beautiful user experiences using Fluent UI

Create customized experiences for Viva and SharePoint

Bring data, security, and infrastructure into your app

Secure and authenticate your app with the Microsoft identity platform

Enrich your app with data and intelligence from Microsoft Graph

Extend meetings and events with Azure Communication Services


Explore ways to build or sharpen your skills.

Get started with documentation

Explore technical documentation and resources to help you build apps for the Microsoft 365 and Teams platform.

Dive deeper with interactive demos and videos

Explore the array of Microsoft and community-produced interactive demos and videos.

Go further with Microsoft learning paths

Learn on your own schedule. Find in-depth guided learning paths or learn how to accomplish a specific task through individual modules.

Publish. Certify. Monetize.

Publish your app

Distribute your app directly to the Microsoft 365 app stores where millions of Microsoft 365 users go to discover apps.

Certify your app

Make sure that your app meets security, privacy, and data handling standards through the Microsoft 365 App Compliance program.

Monetize your app

Gain customers by including a SaaS offer with your app through the Microsoft Commercial Marketplace.

REI logo

"We sold our campus and fully committed to a hybrid work strategy. The fact that we had implemented Microsoft 365 and standardized on Teams helped ensure our success in our new workplace environment."

-Joey Northcott, Divisional Vice President of Technology Services REI

Microsoft 365 Technology Adoption Program (TAP)

Learn about upcoming roadmaps, share feedback on in-development work, and engage with Microsoft 365 product groups.


Learn. Share. Connect. Grow.

Join the Microsoft 365 Developer Program

Join the Microsoft 365 Developer Program

Get an instant sandbox preconfigured with sample data and start developing on the Microsoft 365 platform.

Developers seated around a table participating in the Microsoft 365 developer community

Connect with our community

Don't reinvent the wheel. Learn, share and contribute with others on how to build apps for the Microsoft 365 and Teams platform.

Get the latest Microsoft 365 developer platform news

Back to top