Why is Supabase called an open-source Firebase alternative?

Supabase offers hosted auth, database APIs, storage, edge functions, and realtime features like Firebase. Its core database layer is PostgreSQL, which means developers can use SQL, constraints, joins, and extensions.

How does Supabase realtime work with PostgreSQL?

Supabase can stream database changes to clients using its Realtime service. This is commonly used for chat, dashboards, notifications, and collaborative UI updates backed by Postgres tables.

Can Supabase replace a custom backend for a small app?

Often, yes. A small product can use Supabase Auth, Postgres, Row Level Security, Storage, and Edge Functions before needing a separate application server.

What is Row Level Security in Supabase?

Row Level Security is PostgreSQL's policy system for controlling which rows a user can select, insert, update, or delete. Supabase leans heavily on RLS so browser and mobile clients can call database-backed APIs safely.

Where does Supabase rank on Lunoo?

Supabase is ranked #9 in Lunoo's Best Database rankings with a score of 8.6/10.

How does Supabase compare to competitors?

Lunoo provides objective, AI-powered comparisons. Use the comparison tool to see Supabase side-by-side with any alternative.

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Supabase

8.61

Great

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description Supabase Overview

Supabase is an open-source Firebase alternative that provides a suite of backend services built on top of PostgreSQL. It offers real-time databases, authentication, edge functions, and file storage. By leveraging the power of SQL while providing a modern developer experience with auto-generated APIs, Supabase allows developers to build full-stack applications rapidly without managing complex database infrastructure or manual API boilerplate.