Azure Active Directory B2C documentation
Azure Active Directory B2C (Azure AD B2C) is a customer identity access management (CIAM) solution that enables you to sign up and sign in your customers into your apps and APIs. Your customers use their preferred social, enterprise, or local account identities to get single sign-on access to your applications. Learn how to use Azure AD B2C with our guide, tutorials, and code samples.
Authenticate and authorize for any app type
Select the app type that you want to build to access documentation focusing on it.
A web app whose code runs on a server, returning page data for the browser to render such as Node.js, ASP.NET or Java.
A RESTful web service that is accessed by any app type or other web APIs, and is protected by Azure AD B2C.
Applications with a user interface (UI) whose code runs on a user's desktop, laptop, or notebook computer such as Windows OS.
Applications with a UI whose code runs on a user's phone, tablet, or other mobile device such as Android and iOS.
An application or script without a UI that performs non-interactive tasks like server-to-server communication or scheduled jobs.
Quick access to Azure AD B2C documentation
Get quick access to our guides and tutorials for your most common scenarios.
Learn the basics
Authorize: Call and secure your APIs
Use Microsoft Authentication Libraries (MSAL) for easy app integration
GitHub hosts the open-source Microsoft Authentication Library (MSAL). Microsoft builds and supports MSAL. We recommend MSAL for any app type that uses Azure AD B2C for authentication and authorization.