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Auth.js vs Clerk

How the two compare on license, platforms and what the community thinks.

Key differences

  • Auth.js is open source; Clerk is freemium.
  • Only Auth.js is available on Self-hosted.
Feature Auth.js Clerk
What it isOpen-source auth for JS appsDrop-in auth for modern apps
LicenseOpen sourceFreemium
Web
Windows
macOS
Linux
iOS
Android
Self-hosted
RatingNo reviews yetNo reviews yet
Alternatives listed03
Page views9085

About Auth.js

Formerly NextAuth. OAuth, credentials and adapters that sit in your Next.js or JS backend.

About Clerk

Hosted sign-in, organisations and user management with React components. Fast to ship, billed per MAU.