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SuperDB vs trdsql: catalog facts
SuperDB	trdsql
Free Free to download and use; the source is public on GitHub.	Free The open-source application is available without a license fee.
macOS, Command line	Windows, macOS, Linux
Queries JSON and relational data together Runs locally as a command-line tool	SQL queries over several structured file formats
No tagged releases on GitHub License is not clearly identified in the repository metadata	Available SQL behavior depends on the selected database backend.
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.