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Updated May 2, 2026Auth Comparison

NextAuth.js vs Clerk Comparison

A detailed comparison of NextAuth.js and Clerk.

N

NextAuth.js

Authentication for Next.js.

Primary Task

Next.js Auth

Pricing

Open Source

Key Features

  • OAuth
  • Email/Passwordless
  • Own your data
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C

Clerk

The most comprehensive User Management Platform.

Primary Task

User Auth

Pricing

Freemium

Key Features

  • Embeddable UIs
  • Multi-session
  • Bot Protection
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At a Glance

FeatureNextAuth.jsClerk
Primary TaskNext.js AuthUser Auth
Pricing ModelOpen SourceFreemium
Founded20162019
User LimitsN/AN/A
B2B/B2C FocusN/AN/A
MFAN/AN/A
Social LoginN/AN/A
SDK SupportN/AN/A

Pros & Cons

N

NextAuth.js

Strengths

  • Open Source
  • Own your data
  • Deep Next.js integration

Limitations

  • Maintenance burden
  • Database adapter complexity
  • Less 'batteries included'
C

Clerk

Strengths

  • Drop-in UI components
  • Great DX
  • Multi-session support

Limitations

  • Expensive at scale
  • Less customizable UI
  • Vendor lock-in
Final Decision

The Verdict

Both tools are excellent. Here's how to choose the right one for your project.

N

Choose NextAuth.js

Best for

  • Strong OAuth capabilities
  • Open Source pricing model
  • Next.js Auth workflows
C

Choose Clerk

Best for

  • Embeddable UIs focused projects
  • Freemium approach
  • User Auth use cases

Frequently Asked Questions

What is the main difference between NextAuth.js and Clerk?

NextAuth.js is primarily a Next.js Auth, while Clerk is focused on User Auth. Authentication for Next.js. The most comprehensive User Management Platform.

Is NextAuth.js open source?

Yes, NextAuth.js is open source.

Is Clerk open source?

No, Clerk is a commercial product with a freemium model.

Which is better for Auth?

It depends on your specific needs. NextAuth.js is often chosen for its oauth capabilities, while Clerk is popular for its embeddable uis features.