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Supabase: the best Open Source alternative to Firebase in 2026

Supabase is the open source backend-as-a-service built on PostgreSQL: database, authentication, storage, edge functions and realtime subscriptions, all self-hostable.

License Apache-2.0 108.6k stars liveUpdated hoyWebsite GitHub Repository

Technical profile

License: Apache-2.0
Category: Dev Tools
Replaces: Firebase
Tech stack: PostgreSQLPostgRESTDenoElixir

Preview

Public image provided by Supabase on its own website.

Key features

Full PostgreSQL database (not a subset)
Auth with OAuth, magic links and RLS
File storage with CDN
Realtime subscriptions and Edge Functions

Supabase vs. Firebase

Pros

Easier migration thanks to standard SQL

Things to consider

The full self-hosted stack has quite a few services to maintain

Quick Docker installation guide

Copy this docker-compose.yml, adjust the example passwords and run docker compose up -d on your server. See the full step-by-step guide →

docker-compose.yml

version: "3.9"
services:
  studio:
    image: supabase/studio:latest
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - SUPABASE_URL=http://kong:8000
  kong:
    image: kong:2.8-alpine
    restart: unless-stopped
    ports:
      - "8000:8000"
    depends_on:
      - db
  db:
    image: supabase/postgres:15.1.0.117
    restart: unless-stopped
    environment:
      - POSTGRES_PASSWORD=postgres
    volumes:
      - supabase_db_data:/var/lib/postgresql/data
volumes:
  supabase_db_data: