Get more users by offering one-click sign in for 500 million Office 365 and enterprise accounts
Cross-platform
Come as you are: we support iOS, Android, Windows, web. You bring your users and your stack, we’ll make it work.
Build apps with Microsoft APIs
Access user data inside the enterprise– get an Office365 user’s calendar, mail, and contacts. Perfect for viral growth.
Used by 85% of the Fortune 500
The Microsoft identity stack has been battle tested by the biggest companies in the world.
Hundreds of apps are using Microsoft Sign In, including
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Select a platform for step-by-step instructions
Powerful identity features
Hybrid identity
Our login works across cloud and on-premises Active Directory, allowing users to sign in with their existing credentials.
Multi-factor Authentication
Ensuring customer security is critical, which is why AAD makes it easy to configure multi-factor authentication. If used by your customers, our SDKs automatically make your application compliant.
Enterprise Grade
Powerful, reliable, and secure. We run a geo-replicated service with automatic failover so users can authenticate 24/7, with guaranteed 99.9% availability.
Single Sign On
We support seamless single sign on, so if you have multiple applications on the same device a user logging into one is automatically logged into the rest of your applications as well.
SDKs
Need to support various platforms? We provide SDKs for all the popular technology stacks, including JavaScript, iOS, and Android.
Microsoft APIs
Using our identity platform allows you to access a wealth of powerful data and functionality through the various Microsoft APIs, including Microsoft Graph, Azure AD Graph, and the Skype API.
Industry Standard Protocols
We support OAuth 2.0, OpenID Connect, SAML 2.0, and WS-Federation 1.2. In addition, since we’re standards compliant you can choose to code against the protocol directly.
Cross Platform
We provide a consistent experience across multiple form factors and multiple operating systems including iOS and Android, so your customers can continue using the devices they love.
