Authentication

Auth0 vs Clerk in 2026 - pricing, developer experience, features, and lock-in, with a clear verdict by use case and a third own-your-auth option.

Add Auth0 to Next.js - install the SDK, set env vars and the callback, read the session, and protect routes - plus when you might not need an auth provider at all.

The 7 best Auth0 alternatives in 2026 - Clerk, Supabase Auth, Firebase Auth, Keycloak, SuperTokens, WorkOS, and owning your auth - compared by hosting, DX, and pricing.

How Next.js authentication works in 2026 - sessions, OAuth, magic links, and route protection - plus when to build your own vs use Auth.js, Clerk, or Auth0.