Authentication

Login, signup, sessions, password reset. Don't roll your own crypto.

ClerkFREE TIER

free up to 10k MAU, then $25/mo
The most polished drop-in auth on the market. React/Next.js first-class, sessions, MFA, organizations all included. Pricing is gentle until you scale.

Supabase AuthFREE TIER

free with Supabase project, paid for >50k MAU
Open source, runs on Postgres, integrates with the rest of Supabase. Use if you're already in the Supabase ecosystem or you want self-hostable auth.

Auth.js (NextAuth)FREE TIER

free, OSS
JS library, not a SaaS. You handle the database, sessions, OAuth providers. Best fit if you're already on Next.js and don't want vendor lock-in.

WorkOSFREE TIER

free SSO + audit logs, paid Directory Sync
Aimed at B2B SaaS that needs enterprise SSO (SAML, SCIM). Free tier is genuinely free for SSO. Overkill for B2C indie projects.

Get the launch email

When the paid tier launches, the 3 people on the waitlist get a one-time email + a free upgrade. No spam. Single email.