🚨 Microsoft Graph Toolkit Retirement: Everything You Need to Know

Microsoft has officially announced the retirement of the Microsoft Graph Toolkit (MGT).
The deprecation phase begins on September 1, 2025, and the toolkit will be fully retired on August 28, 2026.

If your applications rely on MGT components, now is the right time to start planning a migration.

🤔 Why Is Microsoft Retiring the Graph Toolkit?

The Microsoft Graph Toolkit was introduced to simplify building Microsoft Graph–powered applications by offering reusable UI components and built-in authentication helpers.

However, Microsoft has decided to phase it out due to:

Declining adoption among developers
Overlap with modern UI frameworks
More flexible and powerful alternatives, such as Fluent UI and Microsoft Graph SDKs

This move allows Microsoft to focus on tools that integrate better with modern development ecosystems and community-driven frameworks.

🗓️ Retirement Timeline

September 1, 2025
Deprecation begins. No new features will be added.
August 28, 2026
Full retirement. The toolkit remains open source but receives no active support.

During the deprecation period:

Only critical security and accessibility fixes will be addressed
No enhancements or new components will be introduced

🔄 What Should Developers Use Instead?

Microsoft recommends transitioning to the following alternatives:

🎨 Fluent UI Web Components

Use Fluent UI for building accessible, modern UI components that align with Microsoft 365 design standards.

🔗 Microsoft Graph SDKs

Use official Graph SDKs for structured, maintainable access to Microsoft Graph APIs.

🔐 MSAL.js

Handle authentication securely using Microsoft Authentication Library (MSAL) instead of MGT’s built-in auth helpers.

Together, these tools offer greater flexibility, long-term support, and better alignment with modern frameworks like React, Angular, and Vue.

🛠️ Recommended Migration Steps

Audit your applications
Identify usage of @microsoft/mgt packages and <mgt-*> components.
Replace UI components
Migrate MGT UI elements to Fluent UI equivalents.
Switch data access logic
Replace MGT data binding with Microsoft Graph SDK calls.
Implement authentication using MSAL.js
Ensure proper token handling and permission scopes.
Test thoroughly
Validate accessibility, performance, and security before deployment.

⚠️ Impact on Existing Applications

Applications using Microsoft Graph Toolkit will continue to work during the deprecation phase.
However, after August 28, 2026, these apps will rely on unsupported components, increasing:

Security risks
Compliance concerns
Maintenance challenges

Early migration helps avoid last-minute technical debt.

🔍 Related Microsoft Developer Updates

This retirement aligns with Microsoft’s broader strategy to streamline developer tooling, including:

Retirement of Microsoft Graph CLI
Introduction of Dev Proxy v1.0 for API simulation and AI-powered testing

🔗 Internal Linking Suggestions

To strengthen your content and SEO, consider linking to:

Fluent UI documentation
Microsoft Graph SDK overview
MSAL.js authentication guide
Microsoft 365 Developer Blog for official announcements

🧠 Final Thoughts

The retirement of Microsoft Graph Toolkit is not just an end—it’s a shift toward more modular, scalable, and future-proof development practices.

By moving to Fluent UI, Microsoft Graph SDKs, and MSAL.js, developers gain:

Better framework compatibility
Stronger security models
Long-term Microsoft support

👉 Start planning your migration today to stay ahead of the 2026 deadline and keep your applications secure and modern.

Microsoft Graph Toolkit Retirement: Full Timeline, Reasons, and Migration Guide