Tools
All CSVTidy tools.
Each tool is a real, working transform — free, no signup, nothing uploaded. Or use the full cleaner to run them all at once.
Remove duplicate rows from CSV
Deduplicate case-insensitively across every column or a selection.
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Standardize date formats in CSV
Convert 03/14/2024, 14 Mar 2024, 2024-03-14 into one consistent format.
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Split full-name column into First + Last
Handles 'Jane Smith', 'Doe, John', honorifics, and suffixes.
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Clean and normalize phone numbers
Detect US/CA numbers and reformat to E.164 or pretty format.
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Trim whitespace from every cell
Strip leading/trailing spaces and collapse internal double-spaces.
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