Clerk
Authentication and user management for modern apps.
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Overview
Clerk handles all authentication and user management complexity so you don't have to. It ships with polished, customizable UI components and deep framework integrations. The result is a production-ready auth system in minutes rather than weeks.
Pros
- Beautiful prebuilt UI components
- MFA, SSO, and social auth built-in
- Excellent Next.js integration
- User management dashboard
- Webhooks for user events
Cons
- Can get expensive at scale
- Less flexibility than rolling your own auth
- Vendor lock-in on user data
Pricing
Free
Up to 10,000 MAU.
- 10,000 MAU
- Social auth
- Prebuilt UI components
- Basic customization
Pro
For growing apps.
- Unlimited MAU ($0.02/MAU after 10k)
- MFA
- Advanced customization
- Webhooks
Enterprise
For large-scale apps.
- SAML SSO
- Custom roles and permissions
- Dedicated support
- SLA
Our rating
Verdict
Clerk is the fastest way to add serious authentication to a modern web app. The prebuilt components are genuinely beautiful, and the Next.js middleware integration is seamless. For most SaaS apps under 10k MAU, the free tier is more than enough.