Open-source alternatives to Firebase

5 alternatives, ranked by a published maintenance score computed from live GitHub signals (fetched 2026-09-04). We flag unmaintained projects on both sides — including Firebase itself when the data says so.

About Firebase: Proprietary (Google) backend-as-a-service; pricing surprises at scale and lock-in are the standard complaints. It is closed-source, so the same public maintenance signals do not exist for it — we score only the alternatives below.

The alternatives

Supabase

90 /100 actively maintained

Postgres-based backend: auth, storage, realtime, edge functions.

108,830 stars · last commit 2026-09-04 · latest release self-hosted/v0.8.0 (2026-08-11) · 1,096 open issues/PRs · Apache-2.0 · fetched 2026-09-04

How this 90/100 was computed

Last commit	today	40/40
Latest release	24 days ago	25/25
Community size	GitHub stars	15/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		90/100

Appwrite

90 /100 actively maintained

Self-hostable backend server for web and mobile apps.

57,285 stars · last commit 2026-09-04 · latest release 2.0.0-rc.2 (2026-09-01) · 1,029 open issues/PRs · BSD-3-Clause · fetched 2026-09-04

How this 90/100 was computed

Last commit	today	40/40
Latest release	3 days ago	25/25
Community size	GitHub stars	15/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		90/100

PocketBase

90 /100 actively maintained

Entire backend in one Go binary with realtime database and auth.

60,940 stars · last commit 2026-09-03 · latest release v0.40.2 (2026-09-02) · 19 open issues/PRs · MIT · fetched 2026-09-04

How this 90/100 was computed

Last commit	yesterday	40/40
Latest release	2 days ago	25/25
Community size	GitHub stars	15/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		90/100

Parse Server

90 /100 actively maintained

The community continuation of Facebook's Parse backend.

21,415 stars · last commit 2026-09-03 · latest release 9.10.1-alpha.7 (2026-08-25) · 556 open issues/PRs · Apache-2.0 · fetched 2026-09-04

How this 90/100 was computed

Last commit	yesterday	40/40
Latest release	10 days ago	25/25
Community size	GitHub stars	15/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		90/100

Nhost

87 /100 actively maintained

GraphQL-first backend built on Hasura and Postgres.

9,287 stars · last commit 2026-09-04 · latest release @nhost/dashboard@3.5.2 (2026-09-03) · 165 open issues/PRs · MIT · fetched 2026-09-04

How this 87/100 was computed

Last commit	today	40/40
Latest release	yesterday	25/25
Community size	GitHub stars	12/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		87/100