Convex vs Firebase
Convex vs Firebase (Backend & Database). Agent test scores: Convex 8.7/10, Firebase not yet tested. No head-to-head verdict yet because Firebase has not been tested. Pricing: Convex — Starter $0 + usage; Professional $25/dev/mo; 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
| Convex | Firebase | |
|---|---|---|
| What it is | Reactive backend-as-a-service. | Google's app development platform. |
| Pricing | Starter $0 + usage; Professional $25/dev/mo | Blaze pay-as-you-go above free quotas |
| Free tier | Yes: 1M function calls, 0.5 GB DB | Yes (Spark): capped free quotas, no card |
| Pricing verified | 2026-10-16 | 2026-10-16 |
| Edition tested | Open-source local backend (anonymous local deployment via Convex CLI), not Convex Cloud | — |
| Tested on | 2026-10-16 | — |
| Outcome score | 9 | Not yet tested |
| Speed score | 9 | Not yet tested |
| Cost score | 10 | Not yet tested |
| Developer experience score | 7 | Not yet tested |
| Reliability score | 8 | Not yet tested |
| Overall score | 8.7 | Not yet tested |
What our tests found
Convex
3/3 runs: push functions, insert and query rows, arg validation, all OK in about 7-8s each (warm). The self-hosted Docker images on ghcr.io returned denied for anonymous pulls.self-hosted/OSS
Firebase
Not yet tested. It is queued for our standard tasks.
Verdict
Pending: we only publish a verdict once both tools have been tested.
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Scores come from our own tests and are never for sale; sponsored placements are always labelled. We may use affiliate links in future. Disclosure