More than authentication,
a complete
Customer Identity Platform
Secure, customizable, and easy-to-use.
Like, really easy.
Compatible with popular stacks
Trusted by over 4,000 applications
Customer Identity Platform
Customer Identity that integrates and syncs with your favorite tools.
Beautiful authentication in minutes
Implement stunning pre-built components with only a few lines of code, then customize the theme to match your application.
import { SignUp } from '@clerk/nextjs';export default function Page() {return <SignUp />;}
Flexible solutions for your application
Clerk supports multiple authentication strategies so you can implement the strategy that makes sense for your users.
Passwords
Require a user to enter a traditional password when signing in.
Magic links
Email the user a link they can click to sign in, even from a separate device.
Email + SMS passcodes
Send the user a one-time passcode to enter when signing in.
Social login
Use OAuth to allow users to sign in with Google, Facebook, and more.
Web3
Enable users to authenticate using their external wallets, such as MetaMask.
Multifactor authentication
Require users to provide an additional SMS or authenticator code when signing in.
And much more
User mgmt. dashboard
User statistics
Allowlist / Blocklist
Invitations
Seamless dev. environment
Custom sign-in methods
Advanced security
Leaked password protection
Rate limiting
Revocable sessions
<1ms auth checks
HttpOnly cookies
An ever-growing
community
From industry leaders to hobbyists, everyone is talking about it.
Discord community
Need help? Have a suggestion? Just want to stay in the loop? Join our Discord community and never miss a thing.
Let's chatOpen-source SDKs
Our development kits are created in the open, and you can join us in building the best user management tool out there.
ContributeEasy to get started
Read the guides or download the starters repositories to quick-start your project.
All guides
Next.js
Clerk is SSR, CSR, API, and Edge compatible. Add your user infrastructure in minutes.
Remix
SSR, CSR, Loaders, and Actions compatible. Add your user infrastructure in minutes.
Supabase
Compatible with RLS. Seamlessly upgrade Supa Auth and get more pre-built UIs.
Gatsby
Clerk is SSR, CSR, and API compatible. Add your user infrastructure in minutes.
Redwood
The most complete auth provider for Redwood.js. Use Clerk seamlessly with Rewoods structure.
Web3
Web3 apps need a strong Web2 base. Seamlessly add wallets to Clerk’s core auth infrastructure.
Seeing is believing
Watch our demo to experience how fast and easy it is to implement Clerk.
Start now, no strings attached
Start completely free for up to 500 monthly active users.
No credit card required.
Pricing
Learn more about our transparent per-user costs to estimate how much your company could save by implementing Clerk.