Sign 100 million enterprise users into your app

The world’s biggest companies use Azure Active Directory

Start accepting sign-ins today

Frameworks for all popular platforms help you get going quickly.

Support for all platforms

Find the SDK for your platform: Windows, iOS, Android, .NET, NodeJS, AngularJS and more.


Build using open standards. Azure AD supports the SAML 2.0, openID Connect 1.0, OAuth 2.0, and wS-Federation 12 authentication protocols.


Azure datacenters are globally distributed with 99.9% uptime uptime SLA.

Build smarter productivity apps with Microsoft Graph

Connect to the data that drives productivity — mail, calendar, contacts, documents, directory, devices, and more.

85% of the Fortune 500 - millions of enterprise users - are using data in Microsoft Graph.

Microsoft Graph API is the gateway for connecting to apps including Excel, Outlook, PowerBI, OneNote, SharePoint, Intune, and more.

Secure cloud-based and hybrid authentication

Multi-factor authentication

IT admins can require multi-factor authentication to access your application, so that you don’t have to code this support yourself.

Identity protection

Adaptive machine learning algorithms and heuristics can detect anomalies and suspiciuos incidents that indicate potentially compromised identities. Enterprises can evaluate the detected issues and take appropriate mitigation or remediation actions.

Conditional access

Keep corporate data secure while giving your users an experience that allows them to do their best work from any device. Enterprises can allow or block access or challenge users with Multi-Factor Authentication, device enrollment, or password change.

Make an instant impact

"Azure Active Directory brought us a simple, reliable, effective solution to solve the problem of enterprise users access, for all mobile devices."

- Grant Peterson, CTO Docusign

Related products and services

Azure Active Directory B2C

Customer identity and access management in the cloud

Azure Active Directory

Identity management in the cloud

Azure App Service

Tools for mobile development

Try Sign in with Microsoft

Get started