Supabase vs Firebase
Supabase is the better default for vibe coders: standard Postgres, built-in auth and storage, and broad support across AI app builders. Firebase is the better pick for mobile-first apps that benefit from its document model and Google integrations.
The verdict
Side by side
| Attribute | Supabase | Firebase |
|---|---|---|
| Database | Postgres (SQL) | Document database (NoSQL) |
| Free plan catch | Projects pause after 1 week inactive | Spark plan limited to no-cost quotas |
| Paid model | Pro from $25/month + compute | Blaze pay-as-you-go |
| Starting paid price | $25/mo | Check site |
| Free tier | Yes | Yes |
| Open source | Yes (Apache-2.0) | No |
| Pricing verified | Oct 15, 2026 | Oct 15, 2026 |
| Our take | A popular backend for vibe coders: Postgres, auth, storage and realtime in one place, supported by many AI app builders. Free projects pause after a week of inactivity. | Google's app platform with a document database, auth and hosting, plus a no-cost Spark plan that needs no payment method. Strong for mobile apps; a document model rather than SQL. |
| Links | Visit Supabase ↗ | Visit Firebase ↗ |
Prices from each vendor's official pricing page. Check site means we couldn't verify a price — we never guess.
FAQ
Can I migrate from Firebase to Supabase?
Yes, but moving from a document model to relational tables takes planning. Map your collections to tables before migrating data.