Supabase Auth vs Clerk

At a Glance

Supabase Auth

Clerk

Supabase Auth

No features listed.

Clerk

Supabase Auth

No data available.

Clerk

Pros

The pre-built UI components handle every auth flow including MFA, magic links, and OAuth and they look good out of the box+176
TypeScript SDK is excellent — user object is typed and available in both server and client components in Next.js without extra setup+158

Authentication

Supabase Auth vs Firebase Auth

Authentication

Clerk vs Auth0

Authentication

Clerk vs Auth0 vs WorkOS

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Cons

You're renting your authentication — if Clerk has an outage or shuts down, your users cannot log in, period+178
Free tier is 10,000 MAU and then it jumps to $25/mo — reasonable for real products but expensive if you're experimenting or have a high-churn user base+162
The Clerk-specific components and hooks create significant coupling — switching to another auth provider requires touching every component that handles auth state+134
Custom domain for the hosted auth pages requires a paid plan, so on the free tier users see clerk.accounts.dev in the URL which looks unprofessional+109