Clerk
Authentication and user management service for applications: sign-in, two-factor authentication, enterprise SSO. Free plan up to 50,000 retained active users; Pro at $25 a month.
An email and password sign-in can be coded in an evening; the real difficulty is everything around it: safe reset, two-factor authentication, bot detection, revocable sessions, enterprise SSO. In security, doing it badly is worse than not doing it. If you want to keep control, a free library like Better Auth does the job; writing authentication yourself is not recommended.
What you lose
- Turnkey two-factor authentication and bot detection
- Session management and revocation
- Enterprise SSO
- Ready-made sign-in components
Existing alternatives to Clerk
- Better AuthOpen source
Free authentication library (MIT) for TypeScript: email, social sign-in, two-factor authentication, sessions.
Frequently asked questions
- Can Clerk be replaced by a custom-built tool?
- casevibecode verdict: Not replaceable. An email and password sign-in can be coded in an evening; the real difficulty is everything around it: safe reset, two-factor authentication, bot detection, revocable sessions, enterprise SSO. In security, doing it badly is worse than not doing it. If you want to keep control, a free library like Better Auth does the job; writing authentication yourself is not recommended.
- What is Clerk used for?
- Authentication and user management service for applications: sign-in, two-factor authentication, enterprise SSO. Free plan up to 50,000 retained active users; Pro at $25 a month.
- What alternatives to Clerk already exist?
- Better Auth (open source). Options to compare before committing to a custom build.
Community feedback
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