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trdsql vs OctoSQL: catalog facts
trdsql	OctoSQL
Free The open-source application is available without a license fee.	Free Free and open source under the Mozilla Public License 2.0.
Windows, macOS, Linux	Windows, Command line
SQL queries over several structured file formats	Joins data across different databases and file formats in one query Uses standard SQL
Available SQL behavior depends on the selected database backend.	No commits since May 2024 Command line only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MPL-2.0
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.