pgvector vs Chroma
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| Field | P pgvectorVector similarity search as a Postgres extension — embeddings without a new database. | C ChromaDeveloper-friendly embedding database for local RAG prototypes. |
|---|---|---|
| Fit. | ||
| Platforms | Linux, macOS, Windows, Docker | Linux, macOS, Windows, Docker |
| Docker | Yes | Yes |
| Commercial | yes | yes |
| Catalog. | ||
| Category | Vector databases | Vector databases |
| License· | Other | Apache 2.0 |
| Language· | C | Python |
| Jobs· | vector database, embedding store, similarity search | embedding store, vector database, similarity search |
| Activity. | ||
| Stars | 23k | 23k |
| Last commit· | Sep 10, 2026 | Sep 5, 2026 |
| Last release· | — | Aug 18, 2026 |
| Links | ProjectGitHubGuide | ProjectGitHubGuide |