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Best Authentication for Next.js (2026)

Compare the best authentication solutions for Next.js 14+. We review Clerk, Auth.js, Supabase Auth, and more with App Router compatibility and Edge Runtime support.

Choosing the right authentication solution for Next.js is critical. You need something that works with the App Router, supports Edge Runtime, and doesn't add complexity to your codebase. We've tested the top options to help you decide.

Por Que É Importante

Next.js 14's App Router and Server Components change how auth works. Session management, middleware, and protected routes all need to work seamlessly with React Server Components. Edge Runtime compatibility matters if you're deploying to Vercel's edge network. The wrong choice can mean auth bugs, poor DX, and hours of debugging.

Considerações Importantes

App Router Compatibility

Does the auth library have first-class support for Next.js 14's App Router, Server Components, and Server Actions? Legacy libraries designed for Pages Router may not work correctly.

Edge Runtime Support

If you're using middleware for auth checks or deploying edge functions, the library needs to work in Edge Runtime (no Node.js APIs like fs or crypto).

Session Strategy

JWT (stateless, edge-compatible) vs Database Sessions (more secure, requires DB calls). Your choice affects where you can deploy and latency.

Social Providers

Which OAuth providers do you need? Most solutions support Google, GitHub, and common providers. Enterprise SSO (SAML, OIDC) requires specific solutions.

Managed vs Self-Hosted

Managed services (Clerk, Auth0) handle everything but cost more. Self-hosted (Auth.js) is free but requires more setup and maintenance.

Nossas Recomendações

Clerk

Melhor Geral Excelente Suporte SDK Oficial

Clerk has the best Next.js integration, period. First-class App Router support, Edge-compatible middleware, drop-in components, and excellent docs. The free tier (10k MAU) is generous for indie projects. Only downside: it's a managed service with vendor lock-in.

npx create-next-app@latest --example with-clerk

Site → Documentação → Repositório de Exemplo →

Auth.js

Melhor Auto-hospedado Excelente Suporte SDK Oficial

Auth.js (formerly NextAuth.js) is the go-to for self-hosted auth. Full App Router support in v5. Free and open source. Requires more configuration than Clerk but gives you full control. Great for privacy-focused apps or when you need database sessions.

npm install next-auth@beta

Site → Documentação → Repositório de Exemplo →

Supabase Auth

Melhor com Supabase DB Bom Suporte SDK Oficial

If you're using Supabase for your database, their auth is a natural choice. Good Next.js support with SSR helpers. Free tier includes auth. Not ideal if you're not using Supabase as your database.

npx create-next-app -e with-supabase

Site → Documentação →

Kinde

Melhor Plano Gratuito Bom Suporte SDK Oficial

Kinde offers a very generous free tier (10.5k MAU) and solid Next.js support. Good alternative to Clerk with competitive pricing. Newer but growing fast.

npm install @kinde-oss/kinde-auth-nextjs

Site → Documentação →

Auth0

Melhor para Empresas Bom Suporte SDK Oficial

Auth0 is battle-tested for enterprise with SAML, LDAP, and advanced security features. Next.js SDK works with App Router. Higher learning curve and pricing than Clerk. Best for B2B apps needing enterprise SSO.

npm install @auth0/nextjs-auth0

Site → Documentação →

Comparação Rápida

Serviço	TypeScript	Edge	Plano Gratuito	Tempo de Configuração
Clerk	full	✓	10k MAU	5 min
Auth.js	full	✓	Unlimited (self-hosted)	30 min
Supabase Auth	full	✓	50k MAU	15 min
Kinde	full	✓	10.5k MAU	10 min
Auth0	full	✓	7k MAU	20 min

Início Rápido

Add Clerk Auth to Next.js middleware.ts

import { clerkMiddleware } from '@clerk/nextjs/server';

export default clerkMiddleware();

export const config = {
  matcher: ['/((?!.*\\..*|_next).*)', '/', '/(api|trpc)(.*)'],
};

Padrões de Integração Comuns

Clerk + Prisma + PostgreSQL

Use Clerk for auth, sync user data to your PostgreSQL database via webhooks, manage data with Prisma.

clerk prisma supabase

Auth.js + Prisma + PlanetScale

Self-hosted auth with Auth.js, database sessions stored in PlanetScale, managed with Prisma adapter.

authjs prisma planetscale

Supabase Full Stack

Use Supabase for auth, database, and storage. Single provider, simple setup, row-level security built-in.

supabase-auth supabase supabase-storage

Perguntas Frequentes

Should I use Clerk or Auth.js for my Next.js app? ▼

Use Clerk if you want the fastest setup, great DX, and don't mind a managed service. Use Auth.js if you need full control, want to self-host, or prefer open source. For most indie projects, Clerk's free tier (10k MAU) is sufficient.

Does Auth.js work with Next.js 14 App Router? ▼

Yes, Auth.js v5 has full support for Next.js 14's App Router, Server Components, and Server Actions. Make sure you're using the beta version (next-auth@beta).

Which auth solution works with Edge Runtime? ▼

Clerk, Auth.js (with JWT strategy), Supabase, Kinde, and Auth0 all support Edge Runtime. They work in Vercel Edge Functions and middleware.

What's the best free authentication for Next.js? ▼

Auth.js is completely free and open source with no usage limits. For managed services, Supabase (50k MAU), Kinde (10.5k MAU), and Clerk (10k MAU) all have generous free tiers.

Guias Relacionados

Next.js database Remix auth SvelteKit auth

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Última atualização: January 11, 2026