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Clerk
AICores
Drop-in authentication with pre-built UI components for React and Next.js
6 reviews
Free tierHas API
Clerk provides the fastest path to authentication for React developers. The pre-built components are beautiful and customizable. Very popular in the Next.js ecosystem.
What's great
- Fastest auth setup for React
- Beautiful pre-built components
- Good free tier
Watch out for
- React/Next.js focused
- Vendor lock-in for auth
- Per-MAU pricing scales
Quick Facts
PricingFrom $25/mo
Free tierYes
PlatformsWeb
APIAvailable
CategoryDeveloper Tools
Q: What is Clerk?
Clerk provides complete authentication with pre-built, customizable React components. It handles sign-up, sign-in, user profiles, organizations, and webhooks with minimal code.
Q: How much does Clerk cost?
Clerk starts at $25/mo.
Q: Who is Clerk best for?
Clerk is best for react and next.js developers who want authentication with the least possible setup.
Q: Is Clerk free?
Clerk offers a freemium model with a free tier. Paid plans start at $25/mo.
Best for
React and Next.js developers who want authentication with the least possible setup
Not ideal for
Developers on non-JavaScript frameworks or needing custom auth flows
Starter
$25/mo
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AICores Editorial Review
Reviewed by AICores Editorial Team
Last updated: May 2026
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