Clean CSV files offline and export a JSON audit
About CSV Tidy
CSV Tidy is a focused offline CSV cleaner for small files. It trims edge whitespace, removes blank rows and exact duplicate rows, then exports both a cleaned CSV and a readable JSON audit. Processing runs locally in a desktop browser, so the file is not uploaded.
PlatformsWeb
LaunchedOct 16, 2026
✓ VerifiedOct 25, 2026
Key features
- Trim edge whitespace
- Remove blank rows
- Remove exact duplicate rows
- Export cleaned CSV
- Export JSON audit
- Runs locally in the browser
Made by
the CSV Tidy team
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