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Auth

Supabase Auth

Auth bundled with Supabase — one less vendor if you're already in.

Visit Supabase Auth
Free tier

50k MAU free as part of Supabase project, OAuth + email + magic link

  • Tied to Supabase project lifecycle — pauses with the project after 7 days idle.
  • Row-level security integration with Postgres is the unique selling point.
Alternatives

Drop-in alternatives

Solve a similar problem if you outgrow Supabase Auth's free tier — or just want a second option in your back pocket.

Top pick

Clerk

Drop-in auth with prebuilt UI — magic links, social, MFA, organizations.

10k MAU free, social + email/password + magic link, no SSO

Auth2026-05

Auth.js (NextAuth)

Self-hosted auth library — free forever, you own the data.

Free OSS — costs only what your DB and host cost

Auth2026-05

Last verified 2026-05 · free-tier numbers shift — confirm at the pricing page before relying on a quota for a launch decision.