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Modern CSV vs SmoothCSV: catalog facts
Modern CSV	SmoothCSV
Freemium Can be downloaded and used for free, with paid features available.	Free Free to download; the site lists no paid tier.
Windows, macOS, Linux	Windows, macOS, Linux
Opens large files that are slow in spreadsheet programs Commands operate on many rows, columns or cells at once	Opens large CSV files quickly Familiar spreadsheet-style grid with multi-cell editing
Closed source Focused on delimited text files rather than full spreadsheet work	Focused on CSV only, not a full spreadsheet with formulas and charts Maintained by one developer in spare time
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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