Amazon Cognito provides authentication, authorization, and user management for web and mobile apps.
Pricing based on monthly active users
Best Supabase Auth Alternatives ranked by AI · updated Aug 2026
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Supabase Auth is the authentication service within Supabase's open-source backend platform. It supports magic links, passwords, social providers, phone authentication, and row-level security for applications using Supabase databases.
Top 6 Supabase Auth alternatives
Clerk is a modern authentication and user management platform for developers.
Starting at $0/month
Keycloak is an open-source Identity and Access Management solution aimed at modern applications and services.
Free and open-source
Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users to your app.
Free tier available, pay as you go pricing for higher usage
Sanctum is Laravel's lightweight authentication package for single-page applications, mobile clients, and token-based APIs. It supports cookie-based session authentication for first-party SPAs...
Pros
- Tightly integrated with Laravel middleware, guards, and user models
- Simpler setup than OAuth2 servers for first-party SPAs and APIs
- Supports both secure cookie sessions and personal access tokens
Cons
- Primarily suited to Laravel applications rather than general-purpose backends
- Lacks Passport's full OAuth2 provider capabilities
- Requires developers to handle more user-management features than hosted platforms
Free, open source
OTPfy is an online service for implementing one-time-password verification in user authentication flows. It is intended for developers and businesses that need...
Pros
- Purpose-built for OTP verification workflows
- Can reduce authentication implementation time
- More focused than general messaging platforms
Cons
- Less widely documented than Twilio Verify or Firebase Authentication
- Limited public information about integrations and regional coverage
- May offer fewer authentication methods than full identity platforms
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