Supabase vs Firebase

Summary

Supabase vs Firebase (Backend & Database). Agent test scores: Supabase 9.2/10, Firebase not yet tested. No head-to-head verdict yet because Firebase has not been tested. Pricing: Supabase — Pro from $25/mo per org ($10 compute credit); Firebase — Blaze pay-as-you-go above free quotas.

Every fact on this page comes from our tool records and test logs. Last updated:

Side by side

SupabaseFirebase
What it isPostgres development platform with auth and storage.Google's app development platform.
PricingPro from $25/mo per org ($10 compute credit)Blaze pay-as-you-go above free quotas
Free tierYes: 2 projects, 500 MB DB, 50K MAU; pauses after 1 week inactiveYes (Spark): capped free quotas, no card
Pricing verified2026-10-162026-10-16
Edition testedSupabase Cloud, Free plan (ap-southeast-2); self-hosted Docker edition also tested: 8.6—
Tested on2026-10-16—
Outcome score9Not yet tested
Speed score10Not yet tested
Cost score9Not yet tested
Developer experience score8Not yet tested
Reliability score10Not yet tested
Overall score9.2Not yet tested

What our tests found

Supabase

Cloud: project provisioned in ~9s, table + REST write/read + email signup/login/wrong-password rejected passed 3/3 runs (~12s task). Email confirmation disabled via API for the test. Secondary: self-hosted Docker (v0.8.2) scored 8.6, all checks passed but edge-functions container unhealthy on our box.cloud free plan

Firebase

Not yet tested. It is queued for our standard tasks.

Verdict

Pending: we only publish a verdict once both tools have been tested.

Best Backend & Database · Best free Backend & Database · All comparisons · Methodology