CleanCSV - Zero-retention, in-browser CSV cleaner & formatter
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Clean, deduplicate, validate, and download CSV files instantly with complete in-browser privacy. Fix broken commas, standardize mixed date formats, and remove duplicates without uploading data to external servers.
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Hey hunters! 👋
I built CleanCSV because I was tired of messy spreadsheets breaking database imports—especially unquoted commas, inconsistent date formats, and duplicate rows. Most tools require uploading spreadsheets to a remote server, which is a major privacy risk.
CleanCSV processes everything 100% locally in your browser memory. No data is stored, indexed, or sent anywhere.
I’d love to hear your thoughts and suggestions on what cleaning rules to add next!