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neatcsv gives you 14+ data cleaning tools that run 100% in your browser. Remove duplicates, fix dates, validate emails, normalize numbers — no uploads, no server, fully GDPR compliant. Export as CSV, Excel or JSON.
neatcsvClean messy CSV, Excel & JSON files in seconds
Cedric Dörfelleft a comment
Hey folks! 👋 I built neatcsv because I was tired of writing one-off scripts every time I got a messy CSV from a client or data export. neatcsv runs entirely in your browser — your data never leaves your machine. It handles: - Duplicate removal (by single or multiple columns) - Email validation & list cleaning - Date normalization (mixed formats → one standard) - Number & currency formatting -...
neatcsvClean messy CSV, Excel & JSON files in seconds