Firebase (Blaze plan) alternatives
Killing Usage-based (Blaze) — here are 3 verified escapes, honest trade-offs included.
Postgres-based Firebase alternative: auth, DB, storage, realtime, edge fns.
head-to-head
| Firebase (Blaze plan) | Supabase | |
|---|---|---|
| price | Usage-based (Blaze) | Free / self-host free |
| self-hostable | no | yes |
| license | proprietary | Apache-2.0 |
| verified | — | 2026-08 |
| migration | — | hard effort |
free & open source (3)
Postgres-based Firebase alternative: auth, DB, storage, realtime, edge fns.
trade-offs: Realtime/NoSQL patterns need remapping to SQL
github →Self-hostable backend server with auth, DBs, functions and storage.
trade-offs: Smaller ecosystem than Firebase
github →Entire backend (DB, auth, files, realtime) in one small Go binary.
trade-offs: Single-node only · No cloud functions (Go/JS hooks instead)
github →migration guide
Firebase → Supabase/PocketBase reality check
⏱ ~2 days- Hard truth first: Firebase Auth users cannot be exported — plan a re-login/reset wave for users.
- Export Firestore data (gcloud firestore export) to JSON.
- Relational-shaped data → Supabase (map collections to tables); tiny app → PocketBase (one binary).
- Rewrite realtime listeners and auth flows against the new SDK.
- Self-host on a VPS or use the OSS projects' clouds at sane prices.
- Delete the Firebase billing account only after the last user migrates.
faq
What is the best free alternative to Firebase (Blaze plan)?
Supabase is the top free option — Postgres-based Firebase alternative: auth, DB, storage, realtime, edge fns.
How much can I save by switching from Firebase (Blaze plan)?
Savings depend on your usage — compare the pricing of the alternatives below against what you pay today.
Can Firebase (Blaze plan) be self-hosted?
Yes — Supabase and Appwrite and PocketBase can be self-hosted for free.