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

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