Guides & tutorials
Authentication
Guides & Tutorials
Next.js 16 authentication tutorials covering Clerk and Auth.js (NextAuth) — sign-in flows, protected routes, session handling, and secure server actions.
3 guides
Next.jsAuth.jsNextAuth14 min read
How to Add Auth.js (NextAuth v5) Authentication in Next.js 16 (2026)
Learn how to add Auth.js (NextAuth v5) authentication to a Next.js 16 App Router project step by step — providers, sessions, protected routes, and proxy.ts, explained for beginners.
clerknextauthauth.js7 min read
Clerk vs NextAuth (Auth.js) in 2026: Which One Should You Choose?
Compare Clerk vs Auth.js (NextAuth) v5 in 2026 for Next.js 16. Setup time, pricing, middleware security, customization, and which one fits your project.
Next.jsClerkAuthentication9 min read
How to Add Clerk Authentication in Next.js 16 (2026 Guide)
Learn how to add authentication in Next.js 16 using Clerk with protected routes, server components, server actions, and social login.