KeyCloak vs Supabase
A comprehensive technical comparison to help you choose the right open-source foundation for your business.
KeyCloak
KeyCloak is an open-source identity and access management solution for modern applications and services.
Supabase
Supabase is the leading open-source alternative to Firebase. It provides a full backend-as-a-service (BaaS) powered by PostgreSQL, including authentication, real-time subscriptions, and storage.
Core Capabilities
- Single Sign-On (SSO) and Single Sign-Out across applications
- Identity Brokering and Social Login (Google, GitHub, Facebook, etc.)
- User Federation with LDAP and Active Directory
- Fine-grained authorization and role-based access control (RBAC)
- Centralized user management with admin console and REST API
- Support for OAuth 2.0, OpenID Connect, and SAML 2.0 protocols
- Adaptive authentication with multi-factor authentication (MFA) and step-up authentication
- Theming and customization for login pages and account management
Core Capabilities
- Full PostgreSQL database with real-time capabilities via pg_net
- Native Authentication with Row-Level Security (RLS) integration
- Object Storage for images, videos, and large files
- Auto-generated RESTful APIs directly from your database schema
- Edge Functions for server-side logic in TypeScript (Deno runtime)
- Built-in support for Vector embeddings for AI and Similarity Search
- Supabase Studio: A visual dashboard for database management
- Instant GraphQL API and Realtime broadcast/presence
🏆 Best For
🏆 Best For
KeyCloak
KeyCloak is an open-source identity and access management solution for modern applications and services.
Core Capabilities
- Single Sign-On (SSO) and Single Sign-Out across applications
- Identity Brokering and Social Login (Google, GitHub, Facebook, etc.)
- User Federation with LDAP and Active Directory
- Fine-grained authorization and role-based access control (RBAC)
- Centralized user management with admin console and REST API
- Support for OAuth 2.0, OpenID Connect, and SAML 2.0 protocols
- Adaptive authentication with multi-factor authentication (MFA) and step-up authentication
- Theming and customization for login pages and account management
🏆 Best For
Supabase
Supabase is the leading open-source alternative to Firebase. It provides a full backend-as-a-service (BaaS) powered by PostgreSQL, including authentication, real-time subscriptions, and storage.
Core Capabilities
- Full PostgreSQL database with real-time capabilities via pg_net
- Native Authentication with Row-Level Security (RLS) integration
- Object Storage for images, videos, and large files
- Auto-generated RESTful APIs directly from your database schema
- Edge Functions for server-side logic in TypeScript (Deno runtime)
- Built-in support for Vector embeddings for AI and Similarity Search
- Supabase Studio: A visual dashboard for database management
- Instant GraphQL API and Realtime broadcast/presence
🏆 Best For
Need Help Deciding or Implementing?
Stop guessing. atomixweb specializes in helping you decide which tool fits your exact business requirements, along with secure architecture, deployment, and scaling for open-source software like KeyCloak and Supabase.