Clerk vs Auth0
Pick Clerk if you want: drop-in auth ui and user management.
Pick Auth0 if you want: enterprise-grade auth and sso.
| Tool | Best for | Skill | Free tier | Paid from | The catch |
|---|---|---|---|---|---|
| Clerk | Drop-in auth UI and user management | beginner | Yes (up to 50K users) | $20/mo annual src 2026-10-13 | Costs grow with monthly active users |
| Auth0 | Enterprise-grade auth and SSO | dev | Yes (up to 25K MAU) | $35/mo src 2026-10-13 | Gets expensive past free tier |