Auth.js (NextAuth.js) vs Clerk
On the evidence we track, Clerk leads this comparison with a composite score of 72/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for auth & identity software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Auth.js (NextAuth.js)
An open-source authentication solution that integrates with web frameworks to provide OAuth-based authentication with customizable sign-in pages.
Clerk
LeaderA cloud-based authentication and user management platform offering prebuilt UI components, APIs, and dashboards to implement user sign-in, profile management, organizations, and billing features.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Clerk
LeaderFrom $25/month. Free tier with 10,000 MAUs.
- FreeFree
- Sign-in and sign-up
- Customizable sign-in pages
- Custom domain
- Profile management
- Social login
- Pro$25/month plus $0.02 per additional MAU
- All Free features
- Remove Clerk branding
- Custom session duration
- Password complexity requirements
- User ban/unban
- +4 more
- EnterpriseContact sales
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Auth.js (NextAuth.js)
- GitHub
Clerk
Leader- Google OAuth
- GitHub OAuth
- Google Workspace
- Convex
- MCP
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.