Authentication · Founded by Colin Sidoti & Braden Sidoti in 2019

Clerk

Complete developer-first user authentication and management platform.

Add to my stack →♡ Save for laterVisit clerk.com ↗

Cost

Free Tier, Paid

Rating

★ People love it

Time to value

Quick Setup (< 1 hour)

Use Clerk to add secure, customizable sign-up, sign-in, user profiles, multi-factor auth, and session management via pre-built UI components and APIs. It supports social login, Web3 wallets, RBAC, and self-serve admin features like impersonation and bans. Ideal for modern web apps built with frameworks like React, Next.js, Remix, or backend stacks using Node, Go, or Rails.

What Clerk does

Embed authentication UI via components like <SignIn>, <SignUp>, <UserButton>Enable multi-factor auth, session revocation, device trackingConfigure social SSO (Google, GitHub, LinkedIn, Slack, etc.)Manage teams via organization and RBAC supportImpersonate users and manage accounts via admin dashboardProtect front-end and back-end routes using clerkMiddleware and auth() helpersPixel-perfect embeddable UI componentsSession management with revocation & device monitoringMFAs: TOTP, SMS, authenticator apps, backup codesOrganization support with RBAC and invitation flowsFraud prevention (disposable email, anti-bot heuristics)Hosted on your domain with secure cookies

Tutorials & Demos

Frequently asked

What tasks does Clerk help with?+

What are Clerk's top use cases?+

What does Clerk cost?+

What does Clerk integrate with?−

Stripe GitHubReact NativeSlackLinkedIn

Who is Clerk for?+

What are the best alternatives to Clerk?+

Want a tailored answer?

See whether Clerk fits your stack.

Techbible weighs Clerk against what you already pay for, your team shape, and the work that's actually happening. Free to start.

Connect your stack →

More in Authentication

All tools →

SuperTokens

Open-source authentication for developers.

Privy Auth

Securely manage and onboard your users at scale.

Stytch

Helps developers add secure login and user management to their apps.

Anon

Automate data extraction from web applications lacking APIs using AI-driven agents.