Chrome Web Store
Auto-fix messy dates, currencies & phone numbers in any CSV
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Chrome Web Store - Auto-fix messy dates, currencies & phone numbers in any CSV

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CSV Normalizer detects and fixes inconsistent date formats, currency notations, and phone numbers directly in your browser. Upload a CSV, let the extension normalize the columns automatically, and download the clean result. No data leaves your browser — 100% local, no backend. Built for analysts and ops teams who receive messy CSV exports. Features: - Auto-detect date, currency and phone columns - Normalize to one consistent format - 100% local, no uploads

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Hey! I built CSV Normalizer after spending way too much time manually fixing date and currency formats in spreadsheets. Would love to hear if this saves you time too!

The local processing is a nice touch for handling client data without worry, and the auto-detection nailed the mixed date formats on my test file right away. Wish it had a quick preview before downloading the whole thing.

Love that everything runs locally with no backend. The auto-detection for mixed date and currency formats in a single column is genuinely useful for the messy exports we get from clients every week.