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DuckDB vs Milvus

Updated June 2026 · A structured head-to-head comparison.

The in-process analytical database (SQLite for analytics).

Open-source vector database.

The verdict

Both DuckDB and Milvus are credible databases tools, and the right pick comes down to your priorities.

Choose DuckDB if you want a higher overall rating (4.8/5). The in-process analytical database (SQLite for analytics).

Milvus — Open-source vector database.

DuckDB vs Milvus: side by side

DimensionDuckDBMilvus
Starting priceFreeFree
Free planYesYes
Pricing modelOpen sourceOpen source
Best forData Teams, DevelopersMl Teams, Developers
PlatformsSelf Hosted, ApiSelf Hosted, Api, Web
Rating4.8/5Winner4.5/5

DuckDB key facts

Vendor
DuckDB
Pricing
Open source — Free
Free tier
Yes
Platforms
Self Hosted, Api
Best for
Data Teams, Developers
Editor rating
4.8 / 5
Founded
2019
Headquarters
Amsterdam, Netherlands

Milvus key facts

Vendor
Zilliz
Pricing
Open source — Free
Free tier
Yes
Platforms
Self Hosted, Api, Web
Best for
Ml Teams, Developers
Editor rating
4.5 / 5
Founded
2019
Headquarters
Redwood City, CA, USA

Frequently asked questions

Is DuckDB better than Milvus?

Neither is universally better — DuckDB edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.

Is DuckDB or Milvus cheaper?

DuckDB is the more affordable of the two to get started, at free. DuckDB starts at free; Milvus starts at free.

Can DuckDB replace Milvus?

Yes for most teams — both are databases tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.