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Updated May 2, 2026Auth Comparison
Lucia vs Clerk Comparison
A detailed comparison of Lucia and Clerk.
L
Lucia
Authentication, simple and clean.
Primary Task
Auth Library
Pricing
Open SourceKey Features
- Session Management
- TypeScript-first
- Database Agnostic
C
Clerk
The most comprehensive User Management Platform.
Primary Task
User Auth
Pricing
FreemiumKey Features
- Embeddable UIs
- Multi-session
- Bot Protection
At a Glance
| Feature | Lucia | Clerk |
|---|---|---|
| Primary Task | Auth Library | User Auth |
| Pricing Model | Open Source | Freemium |
| Founded | 2022 | 2019 |
| 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
L
Lucia
Strengths
- Lightweight
- Type-safe
- Database flexibility
Limitations
- DIY approach
- Smaller community
- More setup required
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.
L
Choose Lucia
Best for
- Strong Session Management capabilities
- Open Source pricing model
- Auth Library 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 Lucia and Clerk?
Lucia is primarily a Auth Library, while Clerk is focused on User Auth. Authentication, simple and clean. The most comprehensive User Management Platform.
Is Lucia open source?
Yes, Lucia 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. Lucia is often chosen for its session management capabilities, while Clerk is popular for its embeddable uis features.