NoSQL vs Relational PostgreSQL Showdown
Firebase vs Supabase: Which One Should You Choose in 1970?
Firebase offers rapid prototyping with Google-native NoSQL Firestore, but lacks relational integrity and risks vendor lock-in. Supabase is an open-source Firebase alternative built on standard PostgreSQL with built-in Auth, Storage, and Realtime.
Quick verdict
- Mobile google ecosystem
- Firebasebest push notifications and FCM integration
- Complex queries and ownership
- Supabasestandard SQL, zero lock-in, self-hostable
Firebase vs Supabase: feature comparison
| Feature | Google FirebaseProprietary | SupabaseOpen SourceSelf-Hostable |
|---|---|---|
| Database Engine | Proprietary NoSQL (Firestore) | Standard PostgreSQL 15+ |
| Open-Source Available | No | Yes (Apache 2.0) |
| Self-Hosting | Impossible | 1-click Docker Compose |
| Row Level Security (RLS) | Firebase Security Rules | PostgreSQL Native RLS |
| Complex Joins & Aggregations | Poor / Costly Reads | Excellent (Full SQL) |
Pricing takeaway
Supabase provides a fixed $25/mo Pro tier with predictable limits, preventing the infamous viral runaway billing spikes that trap Firebase users.
- Google Firebase
- Pay-as-you-go (Blaze Plan). Starts at Free tier then usage-based. Generous Spark Plan (1GB storage, 50k reads/day).Full Firebase pricing breakdown
- Supabase
- Freemium / Usage-based / Open-Source. Starts at $25/mo (Pro tier) or Free Self-Hosted. Free Cloud plan: 500MB database, 50,000 monthly active users.Full Supabase pricing breakdown
Pros and cons
Google Firebase
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- Seamless Google ecosystem integration (Google Analytics, BigQuery, FCM)
- Instant real-time NoSQL syncing (Firestore / Realtime DB)
- Zero infrastructure setup required
Cons
- Hard vendor lock-in to Google Cloud architecture
- NoSQL indexing and complex relational queries are difficult/costly
- Surprise runaway billing risks if database reads spike unexpectedly
Supabase
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- Full power of standard PostgreSQL with Row Level Security (RLS)
- Built-in Authentication, Edge Functions, Realtime, and S3-compatible Storage
- Easy migration: plain standard SQL with zero proprietary lock-in
Cons
- Free tier projects pause after 1 week of inactivity
- Edge functions support TypeScript/Deno only
- Free projects pause after a week of inactivity, and heavy usage needs paid compute add-ons
Firebase vs Supabase: FAQ
Is Supabase a good alternative to Firebase?
Firebase offers rapid prototyping with Google-native NoSQL Firestore, but lacks relational integrity and risks vendor lock-in. Supabase is an open-source Firebase alternative built on standard PostgreSQL with built-in Auth, Storage, and Realtime.
Which is cheaper, Firebase or Supabase?
Supabase provides a fixed $25/mo Pro tier with predictable limits, preventing the infamous viral runaway billing spikes that trap Firebase users.
Is Firebase or Supabase open source?
Google Firebase is proprietary. Supabase is open source (github.com/supabase/supabase).
Can I self-host Firebase or Supabase?
Google Firebase cannot be self-hosted. Supabase can be self-hosted. Difficulty: Low (Official Docker template).
Do Firebase and Supabase have a free tier?
Google Firebase: Generous Spark Plan (1GB storage, 50k reads/day). Supabase: Free Cloud plan: 500MB database, 50,000 monthly active users.