Clerk is a developer-first authentication and user management platform that provides pre-built sign-in, sign-up, and user profile UI components along with a complete backend for session management, MFA, and SSO. Unlike Auth0, Clerk's components are designed to drop directly into React and Next.js apps with minimal configuration. It handles all user-facing authentication flows so developers can focus on their product.
Clerk
Drop-in authentication and user management for web apps.
Best for: Next.js and React developers who want polished pre-built auth UI components without designing authentication flows from scratch.
- Free plan
The editorial note
What to know about Clerk
Is it right for you?
Who Clerk suits
Choose it if
- Next.js and React developers who want polished pre-built auth UI components without designing authentication flows from scratch.
Look elsewhere if
- Non-React backends or teams preferring server-side auth without client-side components — Auth0 or Supabase Auth offer more flexibility for diverse stacks
What you get
Key features
- Drop-in auth components for React, Next.js, and Remix
- Email, password, social login, and passkey support
- Multi-factor authentication (TOTP, SMS)
- Organizations and multi-tenancy for B2B apps
- User management dashboard
- Session management and device tracking
- Webhooks for user events
- SAML SSO for enterprise
Works with
Integrations9
What it costs
Pricing
| Plan | Price | What it includes |
|---|---|---|
| Free | FreeBilled monthly | Up to 10,000 MAU, all auth methods, social login, MFA, passkeys |
| Pro | $25 / month + usageBilled monthly | $0.02 per MAU above 10k, advanced auth, B2B orgs, custom domain, analytics |
| Enterprise | CustomBilled monthly | Volume discounts, SLA, SAML SSO, dedicated support, custom integrations |
Prices are recorded from the vendor's public pricing page and can change. Check before you buy.
The trade-off
Pros and cons
Pros
- Drop-in React and Next.js components work out of the box in minutes
- Beautiful pre-built sign-in and profile UI that matches your brand
- Organizations API for multi-tenant B2B SaaS with roles and permissions
- Generous free tier up to 10,000 monthly active users
- Built-in webhooks for user lifecycle events
Cons
- Primarily focused on React/Next.js — less ideal for non-React stacks
- Vendor lock-in for the UI layer — migrating means rebuilding auth UI
- Not self-hostable — data goes through Clerk servers
- Enterprise SSO requires the highest paid plan
Quick read
At a glance
- Category
- Development & Coding
- Pricing model
- Freemium
- Entry plan
- Free
- Free plan
- Available
- Free trial
- Not listed
- Website
- clerk.com
The verdict
Our take on Clerk
The most developer-friendly auth platform — pre-built components that look professional out of the box saving weeks of auth UI development.
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