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Updated May 2, 2026Auth Comparison
Clerk vs Lucia Comparison
A detailed comparison of Clerk and Lucia.
C
Clerk
The most comprehensive User Management Platform.
Primary Task
User Auth
Pricing
FreemiumKey Features
- Embeddable UIs
- Multi-session
- Bot Protection
L
Lucia
Authentication, simple and clean.
Primary Task
Auth Library
Pricing
Open SourceKey Features
- Session Management
- TypeScript-first
- Database Agnostic
At a Glance
| Feature | Clerk | Lucia |
|---|---|---|
| Primary Task | User Auth | Auth Library |
| Pricing Model | Freemium | Open Source |
| Founded | 2019 | 2022 |
| User Limits | N/A | N/A |
| B2B/B2C Focus | N/A | N/A |
| MFA | N/A | N/A |
| Social Login | N/A | N/A |
| SDK Support | N/A | N/A |
Pros & Cons
C
Clerk
Strengths
- Drop-in UI components
- Great DX
- Multi-session support
Limitations
- Expensive at scale
- Less customizable UI
- Vendor lock-in
L
Lucia
Strengths
- Lightweight
- Type-safe
- Database flexibility
Limitations
- DIY approach
- Smaller community
- More setup required
Final Decision
The Verdict
Both tools are excellent. Here's how to choose the right one for your project.
C
Choose Clerk
Best for
- Strong Embeddable UIs capabilities
- Freemium pricing model
- User Auth workflows
L
Choose Lucia
Best for
- Session Management focused projects
- Open Source approach
- Auth Library use cases
Frequently Asked Questions
What is the main difference between Clerk and Lucia?
Clerk is primarily a User Auth, while Lucia is focused on Auth Library. The most comprehensive User Management Platform. Authentication, simple and clean.
Is Clerk open source?
No, Clerk is a commercial product with a freemium model.
Is Lucia open source?
Yes, Lucia is open source.
Which is better for Auth?
It depends on your specific needs. Clerk is often chosen for its embeddable uis capabilities, while Lucia is popular for its session management features.