Development & Technical Tools Authentication & Authorization

OpenID Connect

Identity layer on OAuth 2.0 for user authentication and SSO

OpenID Connect is the industry-standard identity layer trusted by companies like Google, Microsoft, and Auth0 to provide secure, standardized authentication on top of OAuth 2.0. As the definitive solution for modern identity verification, it enables applications to authenticate users reliably while maintaining the authorization capabilities of OAuth 2.0, powering single sign-on experiences for billions of users worldwide.

What makes OpenID Connect exceptional is its elegant combination of authentication and authorization in a single, standardized protocol that works consistently across all identity providers. By adding a standardized identity layer to OAuth 2.0, it provides JWT-based ID tokens that contain verified user information, eliminating the complexity and security risks of custom authentication implementations.

Development teams choose OpenID Connect because it delivers enterprise-grade security with developer-friendly implementation that works seamlessly across web, mobile, and API applications. From startup MVPs to Fortune 500 enterprises, it provides the proven identity foundation that secure, scalable applications demand.

Key Features

Standardized Identity Layer - Authentication protocol built on proven OAuth 2.0 foundation with consistent implementation across providers • Secure JWT ID Tokens - Cryptographically signed identity verification with standardized user claims and profile information • Multiple Authentication Flows - Support for authorization code, implicit, and hybrid flows optimized for different application types • Comprehensive Userinfo Endpoint - Standardized access to user profile data with consistent claim formats across providers • Automatic Discovery Mechanism - Dynamic configuration discovery eliminates manual setup and reduces integration complexity • Advanced Session Management - Single logout, session monitoring, and timeout handling for secure user experiences • Universal Provider Interoperability - Standard protocol ensures consistent behavior across Google, Microsoft, Auth0, and other providers • Flexible Claims-Based Security - Customizable user attributes, roles, and permissions with fine-grained access control

Pros and Cons

Pros

• Industry standard with universal provider support • Combines authentication and authorization in single protocol • Strong security with JWT-based identity verification • Excellent interoperability across identity providers • Well-documented with extensive community resources

Cons

• Can be complex to implement correctly for beginners • Requires understanding of OAuth 2.0 concepts • JWT token management adds complexity • Some identity providers may have implementation variations • Debugging authentication flows can be challenging

Get Started with OpenID Connect

Implement secure, standardized authentication with the identity layer trusted by Google, Microsoft, and enterprise applications worldwide. Visit openid.net/connect to build authentication that scales from startup to enterprise with proven security and universal compatibility.