Backend platforms
Both are offered as hosted services, so the useful comparison is each vendor’s track record, SDK and licence rather than version support. Supabase is open source (Apache-2.0); Firebase is a proprietary service. In the last 90 days Supabase’s status feed logged 16 or more incidents and Firebase’s 5.
Last checked against Supabase Status, npm, deps.dev, OSV.dev, Firebase Status and Google Cloud Status.
Every value links to its source. Where a row doesn’t apply to one of them, the cell says why.
| Compared on |  Supabase |  Firebase |
|---|---|---|
| Support and releases | ||
| Latest release | ||
| Releases in the last 12 months | ||
| Security | ||
| Advisories published in the last 12 months | ||
| OpenSSF Scorecard | ||
| Status and incidents | ||
| Status now | Operational | Operational |
| Incidents in the last 90 days | 5 Most recent: Firebase Hosting projects presenting intermittent "Bandwidth Quota… (Oct 7, 2026) | |
| Licence and hosting | ||
| Licence | Proprietary service Not open source SDK (firebase): Apache-2.0. | |
| How you run it | Supabase’s managed platform, or self-host the open-source stack | Managed by Google |
| Adoption | ||
| npm downloads last week | ||
| GitHub stars | Hosted service: no public repository | |
| Supabase | Firebase |
|---|---|
| Latest release | |
| Releases in the last 12 months | |
| Supabase | Firebase |
|---|---|
| Advisories published in the last 12 months | |
| OpenSSF Scorecard | |
| Supabase | Firebase |
|---|---|
| Status now | |
Operational | Operational |
| Incidents in the last 90 days | |
5 Most recent: Firebase Hosting projects presenting intermittent "Bandwidth Quota… (Oct 7, 2026) | |
| Supabase | Firebase |
|---|---|
| Licence | |
Proprietary service Not open source SDK (firebase): Apache-2.0. | |
| How you run it | |
Supabase’s managed platform, or self-host the open-source stack | Managed by Google |
| Supabase | Firebase |
|---|---|
| npm downloads last week | |
| GitHub stars | |
Hosted service: no public repository | |
Read across for what matters to you. Each answer comes from the data above or the project’s licence and hosting options.
| If you need | Supabase | Firebase |
|---|---|---|
| An open-source licence | Yes: Apache-2.0 | No: Proprietary service |
| Someone else runs it for you | Yes: From Supabase | Yes: From Google |
| You can run it on your own servers | Yes: Self-hosting is documented | No: Hosted only |
| A public incident history | Yes: Status page with 90-day history | Yes: Status page with 90-day history |
| Supabase | Firebase |
|---|---|
| An open-source licence | |
Yes: Apache-2.0 | No: Proprietary service |
| Someone else runs it for you | |
Yes: From Supabase | Yes: From Google |
| You can run it on your own servers | |
Yes: Self-hosting is documented | No: Hosted only |
| A public incident history | |
Yes: Status page with 90-day history | Yes: Status page with 90-day history |
Open-source Firebase alternative
Real-time NoSQL cloud database
From StackPrism’s curated notes. Pricing isn’t covered here: it changes often, so check each vendor’s pricing page.
Both give a small team a hosted database, sign-in, file storage and serverless functions behind one client SDK, which is why they’re so often weighed against each other for a new app’s backend. The usual deciding question is the data model: Supabase is built on PostgreSQL, so you query with SQL, while Firebase’s core databases, Cloud Firestore and the Realtime Database, are NoSQL stores.
Release lines and end-of-life dates come from endoflife.date, release counts from deps.dev’s publish dates, and advisories from OSV.dev, counted once per flaw even when it’s listed under several ids, and checked against CISA’s list of vulnerabilities known to be exploited. Status and incident history come from each vendor’s public status feed; licences from each project’s licence file or the vendor’s licensing page, linked in the table.
The data refreshes every few hours and the time it was checked is shown above. There’s no pricing and no overall winner: which one fits depends on your constraints. To see how the versions you actually run hold up, check your repo.
Paste a public GitHub repo and see what’s vulnerable, end of life or deprecated in it today. Free, no sign-up.