Databases
MongoDB has 4 supported release lines and PostgreSQL has 5. PostgreSQL 14 reaches end of life on Nov 12, 2026, and MongoDB 8.2 reached end of life on Jul 31, 2026. MongoDB is source-available under SSPL-1.0; PostgreSQL is open source (PostgreSQL License).
Last checked against endoflife.date and deps.dev.
Every value links to its source. Where a row doesn’t apply to one of them, the cell says why.
| Compared on |  MongoDB |  PostgreSQL |
|---|---|---|
| Support and releases | ||
| Supported release lines | ||
| Latest release | ||
| Releases in the last 12 months | ||
| Security | ||
| Advisories published in the last 12 months | Not tracked as a package on OSV.dev | Not tracked as a package on OSV.dev |
| OpenSSF Scorecard | ||
| Licence and hosting | ||
| Licence | SSPL-1.0 Source-available, not open source Using MongoDB as your app’s database is fine; offering MongoDB itself as a service would require releasing your whole service stack under the SSPL. | |
| How you run it | Self-host Community Server, or MongoDB Atlas, the vendor’s managed service | Self-hosted, or managed by most clouds (Amazon RDS, Google Cloud SQL, Azure) and platforms such as Supabase and Neon |
| Adoption | ||
| GitHub stars | ||
| MongoDB | PostgreSQL |
|---|---|
| Supported release lines | |
| Latest release | |
| Releases in the last 12 months | |
| MongoDB | PostgreSQL |
|---|---|
| Advisories published in the last 12 months | |
Not tracked as a package on OSV.dev | Not tracked as a package on OSV.dev |
| OpenSSF Scorecard | |
| MongoDB | PostgreSQL |
|---|---|
| Licence | |
SSPL-1.0 Source-available, not open source Using MongoDB as your app’s database is fine; offering MongoDB itself as a service would require releasing your whole service stack under the SSPL. | |
| How you run it | |
Self-host Community Server, or MongoDB Atlas, the vendor’s managed service | Self-hosted, or managed by most clouds (Amazon RDS, Google Cloud SQL, Azure) and platforms such as Supabase and Neon |
| MongoDB | PostgreSQL |
|---|---|
| GitHub stars | |
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 | MongoDB | PostgreSQL |
|---|---|---|
| An open-source licence | No: Source-available (SSPL-1.0) | Yes: PostgreSQL License |
| Someone else runs it for you | Yes: From MongoDB Atlas | Yes: From Amazon RDS, Google Cloud SQL, Azure, Supabase, Neon |
| You can run it on your own servers | Yes: Yes, it’s software you install | Yes: Yes, it’s software you install |
| A long support window | 9.0 is supported until Oct 31, 2031 | 18 is supported until Nov 14, 2030 |
| MongoDB | PostgreSQL |
|---|---|
| An open-source licence | |
No: Source-available (SSPL-1.0) | Yes: PostgreSQL License |
| Someone else runs it for you | |
Yes: From MongoDB Atlas | Yes: From Amazon RDS, Google Cloud SQL, Azure, Supabase, Neon |
| You can run it on your own servers | |
Yes: Yes, it’s software you install | Yes: Yes, it’s software you install |
| A long support window | |
9.0 is supported until Oct 31, 2031 | 18 is supported until Nov 14, 2030 |
Document-oriented NoSQL database with flexible schema
Advanced open-source relational database with rich features
From StackPrism’s curated notes. Pricing isn’t covered here: it changes often, so check each vendor’s pricing page.
This is the document-versus-relational decision. MongoDB stores JSON-like documents with a flexible schema; PostgreSQL stores rows in tables with SQL and joins, and its JSONB type covers many document use cases. The licences differ too: PostgreSQL uses the permissive PostgreSQL License, while MongoDB Community Server is under the SSPL.
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.
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