User authentication for modern applications
Adding login is an architectural decision, not simply a UI task. Learn how authentication works across web, mobile, single-page, native, and server-side applications, including redirect-based and embedded login, sessions, tokens, SDKs, and backend-for-frontend patterns. Follow practical integration guidance for React, Next.js, Vue.js, Nuxt, .NET, Spring Boot, and other widely used frameworks.
Articles
8 of 8 publishedReact Authentication: The Complete Guide
What frontend authentication means in a React app, the authorization code flow with PKCE, token storage, and wiring a working sign-in.
OAuth 2.0 and OIDC in React: The Authorization Code Flow with PKCE, Explained
How the OAuth 2.0 authorization code flow with PKCE works in a React SPA, why the implicit flow died, and how to implement it correctly.
JWT-Based Authentication in React: Storage, Validation and the localStorage Question
What a JWT contains, who is responsible for validating it, and a direct answer to whether localStorage is safe to use.
Passwordless Login in React: Passkeys, Magic Links and OTP
Comparing passkeys, magic links, and one-time passcodes on security, friction, and device dependency, with guidance on choosing between them.
Open Source and Self-Hosted Auth for React in 2026
Open-source and self-hosted identity providers for React apps that need full control over their auth infrastructure.
Best Authentication Libraries for React in 2026
A comparison of React authentication libraries and SDKs, evaluated on setup time, flexibility, and standards support.
React Authentication Best Practices: The 2026 Checklist
A practical checklist for auditing a React app’s authentication implementation against current standards and threats.
The Architect's Guide to React Authentication: Choosing a Flow, a Store and a Boundary
A decision framework for the three choices that define a React app’s authentication architecture: the flow, the token store, and the trust boundary.
Integrate login with WSO2 Identity Server
WSO2 Identity Server ships SDKs and guides for React, Next.js, Vue.js, Nuxt, .NET, Spring Boot, and other widely used frameworks.
The extensible, API-first platform to orchestrate identity for every human and AI agent at scale. 100% open source.