Clerk vs Lucia

Clerk and Lucia are both auth tools. Clerk: Drop-in authentication with pre-built UI components optimized for React and Next.js Lucia: Lightweight session-based auth library for TypeScript with zero dependencies

Clerk

Drop-in authentication with pre-built UI components optimized for React and Next.js

Category: Auth
Subcategory: Auth Provider
Pricing: Free (10K MAU) / Pro $25/mo
Tier: free

authauth provider

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Lucia

Lightweight session-based auth library for TypeScript with zero dependencies

Category: Auth
Subcategory: Auth Library
Pricing: Open Source
Tier: open-source

authauth library

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Key differences

Dimension	Clerk	Lucia
Pricing Model	Free (10K MAU) / Pro $25/mo (free)	Open Source (open-source)
Platform	Auth Provider	Auth Library
Capabilities	auth provider	auth library

Choose Clerk if...

Clerk fits your specific workflow and team preferences

Choose Lucia if...

Lucia fits your specific workflow and team preferences

Trade-offs at a glance

Derived from each tool's pricing tier, category, and tags.

Clerk

Pros

Lower pricing barrier for trying it early.

Lucia

Pros

Lower pricing barrier for trying it early.
Open-source footprint can improve flexibility and control.

Frequently asked questions

Is Clerk or Lucia better for beginners?: Both tools are accessible. Clerk and Lucia are similar in approachability — try both and see which workflow clicks.
Which is cheaper, Clerk or Lucia?: Clerk (Free (10K MAU) / Pro $25/mo) is the more affordable option. Lucia (Open Source) costs more but may offer additional features.
Can I use Clerk and Lucia together?: Clerk and Lucia serve similar roles, so most teams pick one. However, some developers prototype in one and build production code in the other.