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SQLite Viewer vs Tad: catalog facts
SQLite Viewer	Tad
Free Free to use in the browser.	Free Free and open source under the MIT licence.
Web	Windows, macOS, Linux
Runs client-side so data stays in the browser No installation needed	Opens CSV, Parquet, SQLite and DuckDB data in one app Pivot table view for exploring data without code
Read-only Files must fit in memory	Hobby project with known bugs and rough edges Releases are infrequent; the latest is from June 2024
Web application	Downloadable app
Closed source	Open source
License not stated	License: MIT
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 October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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