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DuckDB vs SuperDB: catalog facts
DuckDB	SuperDB
Free Free and open source under the MIT licence.	Free Free to download and use; the source is public on GitHub.
Windows, macOS, Linux, Command line	macOS, Command line
Queries CSV and Parquet files directly with no loading step Embeds into Python, R and the shell with a single dependency	Queries JSON and relational data together Runs locally as a command-line tool
Single-process by design; it is not a shared multi-user database Concurrent writers are not supported	No tagged releases on GitHub License is not clearly identified in the repository metadata
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.