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Supabase vs Firebase

Supabase and Firebase are both popular tools in the development space. The open source Firebase alternative vs Google's app development platform with real-time database and hosting. Here's how they stack up side-by-side.

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Supabase logo

Supabase

The open source Firebase alternative

Free + paid plans freemium
Visit Supabase View Supabase details
Firebase logo

Firebase

Google's app development platform with real-time database and hosting

Free
Visit Firebase View Firebase details

Key Features

Supabase Features

  • PostgreSQL database
  • Auto-generated APIs
  • Real-time subscriptions
  • Authentication (email, social, phone)
  • File storage
  • Edge Functions (Deno)

Firebase Features

  • Cloud Firestore real-time document database
  • Firebase Realtime Database (legacy WebSocket JSON sync)
  • Authentication with email, phone, and 10+ OAuth providers
  • Cloud Functions for Firebase (Node.js, Python, Go)
  • Firebase Hosting with global CDN
  • Remote Config and A/B testing

Pros & Cons

Supabase

Pros

  • + Open source
  • + Generous free tier
  • + Real PostgreSQL
  • + Auth included
  • + Great developer experience

Cons

  • - Self-hosting can be complex
  • - Newer platform
  • - Some features still in beta
  • - Limited support on free tier

Firebase

Pros

  • + Largest ecosystem and community of any BaaS platform
  • + Excellent mobile SDK maturity — battle-tested at scale
  • + Real-time sync out of the box is still best-in-class for Realtime DB
  • + Deep Google Cloud integration for teams in GCP ecosystem

Cons

  • - NoSQL-only — no SQL database option without adding Cloud SQL separately
  • - Pricing becomes unpredictable and expensive at scale with Blaze plan
  • - Strong vendor lock-in with Google — migrating is painful
  • - Firestore query limitations (no full-text search, limited joins)

Best For

Supabase is best for:

Modern web appsFirebase alternative seekersPostgreSQL usersOpen source advocates

Firebase is best for:

Mobile app developers (iOS/Android/Flutter)Teams already invested in Google CloudStartups needing proven infrastructure quicklyApps with heavy real-time requirements

Frequently Asked Questions

Is Supabase better than Firebase?

It depends on your needs. Supabase (The open source Firebase alternative) is best for: Modern web apps, Firebase alternative seekers, PostgreSQL users. Firebase (Google's app development platform with real-time database and hosting) is best for: Mobile app developers (iOS/Android/Flutter), Teams already invested in Google Cloud, Startups needing proven infrastructure quickly. Use the comparison below to pick the right fit for your team.

How much does Supabase cost vs Firebase?

Supabase pricing: Free + paid plans. Firebase pricing: Free. Check each tool's detail page for full pricing tiers.

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