NextAuth.js

Health v2 · maintenance only

Adoption not part of the score

28345 stars · 4044 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Auth.js (formerly NextAuth.js) is an open-source, runtime-agnostic authentication library built on standard Web APIs, with deep integrations for Next.js, SvelteKit, Express, Qwik, Remix, Nuxt, and SolidStart. It supports OAuth 2.0/OIDC providers, email/passwordless sign-in, WebAuthn passkeys, and optional database-backed sessions via adapters.

Use cases

• add google or github sign-in to a next.js app
• implement oauth2 login for a sveltekit application
• add passwordless email magic link authentication
• support passkeys and webauthn sign-in
• manage user sessions with or without a database
• add authentication to an express server
• integrate many oauth providers like discord, keycloak, auth0

When to choose

• you need full-stack authentication in a supported JS framework (Next.js, SvelteKit, Express, Qwik, etc.)
• you want to self-host auth and own your user data
• you need broad OAuth/OIDC provider coverage out of the box
• you want stateless JWT sessions without a database

When to avoid

• you are starting a brand-new project - the project now recommends Better Auth
• you need a fully managed hosted identity service with enterprise SSO compliance
• your stack is outside the JavaScript/TypeScript ecosystem

Facets

library · maturity maintenance

auth middleware http-server web-development security backend frontend serverless cross-platform oauth2 oidc jwt csrf passkeys webauthn nextjs sveltekit sso session-management database-adapters nodejs web-server typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="nextauthjs/next-auth")