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Identity

Supabase Auth

Authentication integrated with Supabase projects, Postgres data, row-level security, and the wider backend platform.

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Editorial verdict

Choose Supabase Auth when the application already commits to Supabase and benefits more from backend integration than from a standalone identity product.123

Best for

  • Applications already using Supabase projects and Postgres
  • Teams connecting authentication identity to row-level security policies
  • Products that prefer one backend platform subscription
12

Not ideal for

  • Teams choosing authentication independently from backend architecture
  • Products that prioritize a highly polished managed account interface
  • Applications needing enterprise identity economics outside Supabase's MAU model
13
Main trade-off

Supabase Auth aligns identity closely with the backend and database, but that convenience increases platform coupling and makes auth pricing part of a broader project bill.123

Product boundary

Decide whether authentication should be selected as part of the Supabase backend commitment.

Supabase Auth manages authentication identities and tokens inside Supabase projects; application authorization still depends on database policies and application rules.12

For: Teams already using or strongly considering Supabase for a web or mobile application's backend

  • The application is not otherwise committed to Supabase
  • Enterprise SSO MAU is expected to be significant
  • Identity must remain portable across backend providers
  • The team needs a more complete prebuilt account administration experience

Why teams consider Supabase Auth

  • Backend integrationAuthentication users, tokens, Postgres, and row-level security are designed to work together.12
  • Consolidated platformAuth shares project operations and billing with database, storage, functions, and other Supabase services.13
  • Multiple identity methodsThe product supports password, passwordless, social, phone, and enterprise identity paths.1

Pricing

Backend platform subscription with included Auth MAU, MAU overages, and separately metered enterprise or advanced features3

Prototype

Free — $0

Includes 50,000 monthly active users across the Free plan's project allowances.3

Production

Pro — from $25/month

Includes 100,000 MAU, then published Auth MAU overage of $0.00325 per user.3

Enterprise SSO

SAML SSO — 50 MAU included, then $0.015/MAU

SAML SSO uses a separate enterprise-SSO MAU meter on paid plans.3

Platform bill
The $25 Pro entry price is a Supabase organization plan, not an auth-only subscription.3
Advanced MFA
Phone MFA is listed as a paid add-on, while basic MFA is included.3
Pricing checked View official pricing

Supabase Auth vs alternatives

Clerk

Choose when
A standalone managed account experience matters more than backend consolidation.
Compared with Supabase Auth
Identity becomes a separate vendor and data plane.56

Better Auth

Choose when
The team wants application-owned auth without committing identity to Supabase.
Compared with Supabase Auth
The application assumes more authentication operations.710

Auth0

Choose when
A broad CIAM feature set and enterprise configurability drive the decision.
Compared with Supabase Auth
The product has a larger configuration and pricing surface.89

Resources and sources

Official resources

  • Supabase Auth documentation
    Open
  • Auth and Row Level Security
    Open
  • Supabase pricing
    Open
  • Supabase security
    Open
  1. 1
    Supabase Auth documentation

    Supabase · Accessed Official

  2. 2
    Auth and Row Level Security

    Supabase · Accessed Official

  3. 3
    Supabase pricing

    Supabase · Accessed Official

  4. 4
    Supabase security

    Supabase · Accessed Official

  5. 5
    Clerk documentation

    Clerk · Accessed Official

  6. 6
    Clerk Organizations

    Clerk · Accessed Official

  7. 7
    Better Auth introduction

    Better Auth · Accessed Official

  8. 8
    Auth0 documentation

    Auth0 · Accessed Official

  9. 9
    Auth0 enterprise identity providers

    Auth0 · Accessed Official

  10. 10
    Better Auth organization plugin

    Better Auth · Accessed Official