Reimagine the way people work
Build the future of productivity, collaboration, and communication with intelligent experiences that extend Microsoft 365.
Extend, enrich, and customize Copilot for Microsoft 365
Copilot extensions expand your organization's AI-powered productivity, skills, and creativity
Reimagine everyday collaboration in meetings, chats, and calls
With Teams, you can build collaborative apps that make communication seamless, connected, and intelligent.
Power your app with data and insights from Microsoft 265
Access rich, people-centric data in the Microsoft Cloud via a single endpoint with the Microsoft Graph REST APIs and SDKs.
Build immersive experiences for the workplace
Mesh lets you create new customized, multi-user experiences to help virtual meetings and events feel more like face-to-face connections. Now, you can bring your 3D world-building skills to the global workforce, helping connect like never before.
Join our programs
Microsoft 365 Technology Adoption Program (TAP)
Learn about upcoming roadmaps, share feedback on work in development, and engage with Microsoft 365 product groups.
Learn about upcoming roadmaps, share feedback on work in development, and engage with Microsoft 365 product groups.
Join the Microsoft 365 Developer Program
Get resources and information to help you build solutions for the Microsoft 365 platform, including recommendations tailored to your areas of interest. You might also qualify for a free, renewable developer subscription that comes configured with sample data.
Connect with our community
Don't reinvent the wheel. Learn, share, and contribute with others to build apps for the Microsoft 365 and Teams platform.