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